|
speedseal anyone?
I'm going to be hauling soon, and even though I have realitively easy access
to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? -- "j" ganz @@ www.sailnow.com |
speedseal anyone?
On Dec 22, 2:02*pm, "Capt. JG" wrote:
I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference,http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? -- "j" ganz looks good to me its not like most of the seals nowdays need to be cranked very tight. I might put wing nuts on the heads so i could twist a few more inch pounds. or just for a secure grip in the cold. the nurling on those cap nuts seems a might shallow to me. |
speedseal anyone?
"Dave" wrote in message
... On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Just trying to be prepared. I had a situation where water was not flowing for a longer-than-I-realized time. Fortunately, I didn't have to switch impellers. -- "j" ganz @@ www.sailnow.com |
speedseal anyone?
On Dec 22, 4:52*pm, Gogarty wrote:
In article , says...On Dec 22, 2:02*pm, "Capt. JG" wrote: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference,http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? -- "j" ganz looks good to me its not like most of the seals nowdays need to be cranked very tight. Knurling. Sorry. Can't help it. I might put wing nuts on the heads so i could twist a few more inch pounds. or just for a secure grip in the cold. the nurling on those cap nuts seems a might shallow to me.- Hide quoted text - - Show quoted text - I don't mind. my spelling has always been bad. |
speedseal anyone?
On Mon, 22 Dec 2008 16:29:33 -0800, "Capt. JG"
wrote: "Dave" wrote in message .. . On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Just trying to be prepared. I had a situation where water was not flowing for a longer-than-I-realized time. Fortunately, I didn't have to switch impellers. If you are talking about the cover made in England then I've got one somewhere. They have a very thin O ring around the edge of the cover plate and the knurled screws are plenty large enough to tighten the cover down and compress the O ring. Cheers, Bruce (bruceinbangkokatgmaildotcom) |
speedseal anyone?
Dave wrote in
: On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Clearly you haven't tried to help get a boat off of the beach. -- Geoff www.GeoffSchultz.org |
speedseal anyone?
On Mon, 22 Dec 2008 22:02:35 -0600, Geoff Schultz
wrote: Dave wrote in : On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Clearly you haven't tried to help get a boat off of the beach. -- Geoff www.GeoffSchultz.org Looks like a solution looking for newbie cruisers to pay for something I've never seen/heard of being an issue. Getting newbies to change their fuel filters (all of them) would really save boats. Especially if they carried the filters with them. ----------------- www.Newsgroup-Binaries.com - *Completion*Retention*Speed* Access your favorite newsgroups from home or on the road ----------------- |
speedseal anyone?
"Bruce In Bangkok" wrote in message
... On Mon, 22 Dec 2008 16:29:33 -0800, "Capt. JG" wrote: "Dave" wrote in message . .. On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Just trying to be prepared. I had a situation where water was not flowing for a longer-than-I-realized time. Fortunately, I didn't have to switch impellers. If you are talking about the cover made in England then I've got one somewhere. They have a very thin O ring around the edge of the cover plate and the knurled screws are plenty large enough to tighten the cover down and compress the O ring. Cheers, Bruce (bruceinbangkokatgmaildotcom) Yep... what do you think of it? Not that I'm impressed, but Practical Sailor liked it. -- "j" ganz @@ www.sailnow.com |
speedseal anyone?
"Geoff Schultz" wrote in message
.. . Dave wrote in : On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Clearly you haven't tried to help get a boat off of the beach. -- Geoff www.GeoffSchultz.org My main concern is that if I have to do it quickly, I would be hard pressed to remove the cover easily... -- "j" ganz @@ www.sailnow.com |
speedseal anyone?
wrote in message
... On Mon, 22 Dec 2008 22:02:35 -0600, Geoff Schultz wrote: Dave wrote in m: On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Clearly you haven't tried to help get a boat off of the beach. -- Geoff www.GeoffSchultz.org Looks like a solution looking for newbie cruisers to pay for something I've never seen/heard of being an issue. Getting newbies to change their fuel filters (all of them) would really save boats. Especially if they carried the filters with them. ----------------- www.Newsgroup-Binaries.com - *Completion*Retention*Speed* Access your favorite newsgroups from home or on the road ----------------- So, if you haven't heard of it, then it's for newbies? I don't think so... seems like a reasonable device if you want to remove the cover without a hassle, but I've not had the pleasure of doing it, no less doing it in a hurry. Perhaps it doesn't work, or as someone said, the screws can't be hand tighten enough. -- "j" ganz @@ www.sailnow.com |
speedseal anyone?
Capt. JG wrote:
"Geoff Schultz" wrote in message .. . Dave wrote in : On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Clearly you haven't tried to help get a boat off of the beach. -- Geoff www.GeoffSchultz.org My main concern is that if I have to do it quickly, I would be hard pressed to remove the cover easily... I've considered getting one for my Yanmar 1GM10 even though its only a three bolt cover. I like the idea of no longer having to keep supplies of a thin paper OEM water pump gasket, that no matter how careful you are, if compressed well enough to seal, tears when you remove the cover 3 times out of 4, and if you *don't* rip it, weeps if re-used unless you get *ugly* with the gasket dressing. However the no tools argument is IMHO spurious for most of us as our minimal toolbox of the OEM's engine tools + a few carefully chosen extras is stowed somewhere easily accessible (and if we are half way competent a good kit of tools and spares stowed elsewhere) and one usually needs tools to remove the impeller from the chamber. Once you've removed it you are expecting to need the new impeller as well. I'd also want a spare O ring handy. I hope its a standard size not a 'special' or most of the attraction goes away. OTOH if your is a six bolt or worse coverplate, or you are working blind reaching round the engine, I can see the attraction of *NOT* needing tools unless you've over tightened the bolts. If they are soft brass slotted screws, you'll also be glad to deep six them. I'm not so sure that it would work for me with the knurled screws as one is behind the pulley on the crankshaft and a 7mm ring spanner is really the only tool that works. I just wouldn't be able to get a grip on that one to snug it up, let alone a screwdriver onto it to loosen it, but I see no reason I couldn't have just the plate with a set of hex headed bolts, and get an extra 7mm spanner to keep with the spare impeller, cover bolts and O ring. Might as well put the old cover, cleaned up and with a good gasket stuck to it with a light dressing of Hylomar, and its bolts in that pump spares pack as well. You *know* that if you are rushed there's a greater chance you'll drop the whole dammed thing down the bilge. I can see other benefits as one can check the impeller more often, catching failures before they happen and maybe remove it when laid up so it doesn't take a set so letting you get more life out of it without worrying without using so many gaskets your local manufactures agent starts greeting you by name and asking after your family. :-) J.G, If you are teaching, I would think it would see a lot of use if you encourage your students to learn basic engine maintenance. Do show them the old cover and screws though, we wouldn't want them to think it came as standard! Its on my 'nice to find in my Christmas stocking' list (hint hint, crew) but I've got a lot of other things I'd treat my engine to first. A new starter motor would be nice. The water pump chamber has excessive wear so a new pump is in the offing. A new HP fuel line as the old one is over 20 years old and I'd then have the old one for a spare. New single lever control and a new throttle cable. Finally the biggie, rebuild the gearbox due to excessive wear and runout on the shifter groove of the shuttling double cone in the clutch assembly - Its significantly out of spec even though it still shifts easily and stays in gear reliably. |
speedseal anyone?
FWIW, I bought one for my Yanmar about 6 years ago and am very happy
with it. I too was concerned about having to change the impeller while underway. Have yet to have that experience but it does make the task easier. |
speedseal anyone?
"Capt. JG" wrote in message easolutions... I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? -- "j" ganz @@ www.sailnow.com Seems a nice improvment to me. BUT. It only solves a minor part of the problem. My experience is that the two big problems are getting the old impeller out and the new one in, preferably with the wings in the right direction. The Speedseal page mentions an impeller removal tool but does not show a picture. Does anybody know what it looks like, how it works and is it useful also in really tight spots? Caitzu |
speedseal anyone?
"C. S." wrote in message ... BUT. It only solves a minor part of the problem. My experience is that the two big problems are getting the old impeller out and the new one in, preferably with the wings in the right direction. The Speedseal page mentions an impeller removal tool but does not show a picture. Does anybody know what it looks like, how it works and is it useful also in really tight spots? Caitzu Screwdriver has always worked for me. Used carefully you do not damage the impeller |
speedseal anyone?
On Tue, 23 Dec 2008 17:14:17 +0100, "Edgar"
wrote: "C. S." wrote in message ... BUT. It only solves a minor part of the problem. My experience is that the two big problems are getting the old impeller out and the new one in, preferably with the wings in the right direction. The Speedseal page mentions an impeller removal tool but does not show a picture. Does anybody know what it looks like, how it works and is it useful also in really tight spots? Caitzu Screwdriver has always worked for me. Used carefully you do not damage the impeller Damaging the impeller with a screwdriver is not the issue, damaging the machined mating surface under the cover plate is the real problem when you try to pry it out. I've had much better luck with two pairs of needle nose pliers, grabbing vanes on opposite sides and giving it a straight pull out. A little shot of PB Blaster on the shaft hub can help if it is really stuck. There is a trick to getting the new impeller back in. Wrap a nylon wire tie around the new impeller, compressing the rubber vanes around the hub as you tighten it up. That should allow you to get it started, and then you snip the wire tie with cutters and push the impeller in all the way. It does not matter if the vanes are pointing the wrong way - they will flip over on the first turn. A light shot of silicone spray will ease the process. It is much better for the engine to replace impellers on a regular schedule of preventive maintenance rather than waiting for them to wear out. In addition to preventing a potential overheat, impellers shed vanes when they wear out, and the loose vanes get stuck elsewhere in the cooling system. |
speedseal anyone?
"Capt. JG" wrote in message
easolutions... I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? I have one on a Perkins 4-107 and I think it's the greatest thing since sliced bread. An o-ring seals the plate against the pump body so it does not take a great deal of force to tighten it sufficiently. The nuts do not seem to have a propensity for loosening as long as you don't use a lubricant on the threads. I use a little bit of anti-seizing compound on the threads for easy disassembly. To those who seem to be having problems getting the impeller out, I have found that a medium-sized pair of water-pump pliers is all that it takes for mine. Grab it across the diameter of the impeller between opposite pairs of vanes and pull it slowly out. When I install a new impeller, I clean the shaft with mineral spirits and take the precaution of wiping on a bit of anti-seizing compound in the bore before I install the new one, and I grease the impeller blades lightly with a bit of white teflon grease. Start the impeller into the case a little "ahead of the rotation" and twist the impeller in the direction of rotation to predispose the vanes to bend in the correct direction and the impeller drops into place like it knows where it's going. Or just wrap thumb and index finger around the impeller and fold the vanes down and insert it directly. Tom Dacon |
speedseal anyone?
On Tue, 23 Dec 2008 13:36:57 -0000, John Weston
wrote: In article lutions, says... I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Yes, I've had one for some years now and it lives up to its name. It has the main advantage that it is easier and quicker to remove, not needing tools and, because it has holes and slots, rather than all holes, is less likely to get dropped when being refitted. (Two screws remain in the block so it can be relocated without seeing where the screw holes are.) It also uses an O-ring rather than a gasket for sealing. This lasts much longer and is less likely to be damaged. What I'd like is a Speedseal with a window, so I could check the impeller is rotating :-) Anybody know how raw water pumps performed before impellers became synthetic? Not having a boat, but having plenty of experience with pumps, it strikes me as odd that engine cooling should be such a dicey proposition. I can understand the rubber impellers on OB's, which can't be practically equipped with the filters some have posted about here. The biggest argument for them I've seen is the vanes giving way to twigs and other detritus. Don't the canister filters I've seen here keep this from getting to the pump? Corrosion resistance is another argument, but there are metal alloys that do well at that. Then there's price. Which I suspect is the real seller. I did look a bit on the net for metal impeller raw water pumps, but what I found were electric motor powered, maybe intended for ships. It seems that with decent filtering a metal impeller pump would be more reliable in protecting an expensive engine. You mentioned knowing if the impeller is turning. Can't a pressure gage set be attached to these pumps, perhaps with a low-pressure alarm or engine shutdown? It just seems very odd to me that so much is left to chance. Weather I can understand. A blown engine because of an inoperative impeller is more difficult. On the surface it looks like sailors have no mechanical aptitude, and are getting suckered by "accepted practice" regarding engine systems. But I don't believe that, so I'd appreciate some instruction from the sailors here as to why this "diciness" about engine cooling exists. I started to say these "plastic" impellers suck, but unfortunately it appears that might be praising them. Thanks! --Vic |
speedseal anyone?
On Tue, 23 Dec 2008 11:54:08 -0600, Vic Smith
wrote: On the surface it looks like sailors have no mechanical aptitude, and are getting suckered by "accepted practice" regarding engine systems. But I don't believe that, so I'd appreciate some instruction from the sailors here as to why this "diciness" about engine cooling exists. I started to say these "plastic" impellers suck, but unfortunately it appears that might be praising them. Impellers need to be replaced on a regular schedule. 300 to 500 operating hours is about right in my experience. In their favor, impeller pumps are compact, efficient and self priming. |
speedseal anyone?
"IanM" wrote in message
... Capt. JG wrote: "Geoff Schultz" wrote in message .. . Dave wrote in : On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG" said: I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? Looks to me like a solution in search of a problem. How many times have you had to change an impeller under circumstances where you couldn't do it hove to or anchored? Clearly you haven't tried to help get a boat off of the beach. -- Geoff www.GeoffSchultz.org My main concern is that if I have to do it quickly, I would be hard pressed to remove the cover easily... I've considered getting one for my Yanmar 1GM10 even though its only a three bolt cover. I like the idea of no longer having to keep supplies of a thin paper OEM water pump gasket, that no matter how careful you are, if compressed well enough to seal, tears when you remove the cover 3 times out of 4, and if you *don't* rip it, weeps if re-used unless you get *ugly* with the gasket dressing. However the no tools argument is IMHO spurious for most of us as our minimal toolbox of the OEM's engine tools + a few carefully chosen extras is stowed somewhere easily accessible (and if we are half way competent a good kit of tools and spares stowed elsewhere) and one usually needs tools to remove the impeller from the chamber. Once you've removed it you are expecting to need the new impeller as well. I'd also want a spare O ring handy. I hope its a standard size not a 'special' or most of the attraction goes away. OTOH if your is a six bolt or worse coverplate, or you are working blind reaching round the engine, I can see the attraction of *NOT* needing tools unless you've over tightened the bolts. If they are soft brass slotted screws, you'll also be glad to deep six them. I'm not so sure that it would work for me with the knurled screws as one is behind the pulley on the crankshaft and a 7mm ring spanner is really the only tool that works. I just wouldn't be able to get a grip on that one to snug it up, let alone a screwdriver onto it to loosen it, but I see no reason I couldn't have just the plate with a set of hex headed bolts, and get an extra 7mm spanner to keep with the spare impeller, cover bolts and O ring. Might as well put the old cover, cleaned up and with a good gasket stuck to it with a light dressing of Hylomar, and its bolts in that pump spares pack as well. You *know* that if you are rushed there's a greater chance you'll drop the whole dammed thing down the bilge. I can see other benefits as one can check the impeller more often, catching failures before they happen and maybe remove it when laid up so it doesn't take a set so letting you get more life out of it without worrying without using so many gaskets your local manufactures agent starts greeting you by name and asking after your family. :-) J.G, If you are teaching, I would think it would see a lot of use if you encourage your students to learn basic engine maintenance. Do show them the old cover and screws though, we wouldn't want them to think it came as standard! Its on my 'nice to find in my Christmas stocking' list (hint hint, crew) but I've got a lot of other things I'd treat my engine to first. A new starter motor would be nice. The water pump chamber has excessive wear so a new pump is in the offing. A new HP fuel line as the old one is over 20 years old and I'd then have the old one for a spare. New single lever control and a new throttle cable. Finally the biggie, rebuild the gearbox due to excessive wear and runout on the shifter groove of the shuttling double cone in the clutch assembly - Its significantly out of spec even though it still shifts easily and stays in gear reliably. I know what you mean about the right tools. My concern would be not being able to put my hands on them quickly enough, have them scattered around if I have to use them while in a sea way, or having to climb over other people or things to get or use them... well, none of this is that difficult to figure out. My RWP has a number of screws holding the impeller cover... it's fairly accessible, however. http://picasaweb.google.com/SailNOW....31246863609314 http://picasaweb.google.com/SailNOW....31276928380402 -- "j" ganz @@ www.sailnow.com |
speedseal anyone?
"Wayne.B" wrote in message ... On Tue, 23 Dec 2008 17:14:17 +0100, "Edgar" wrote: "C. S." wrote in message ... BUT. It only solves a minor part of the problem. My experience is that the two big problems are getting the old impeller out and the new one in, preferably with the wings in the right direction. The Speedseal page mentions an impeller removal tool but does not show a picture. Does anybody know what it looks like, how it works and is it useful also in really tight spots? Caitzu Screwdriver has always worked for me. Used carefully you do not damage the impeller Damaging the impeller with a screwdriver is not the issue, damaging the machined mating surface under the cover plate is the real problem when you try to pry it out. I've had much better luck with two pairs of needle nose pliers, grabbing vanes on opposite sides and giving it a straight pull out. A little shot of PB Blaster on the shaft hub can help if it is really stuck. Thats OK but I was thinking of a tight spot where there is not "unlimited" space in front of the impeller housing. Any solutions for that case? There is a trick to getting the new impeller back in. Wrap a nylon wire tie around the new impeller, compressing the rubber vanes around the hub as you tighten it up. That should allow you to get it started, and then you snip the wire tie with cutters and push the impeller in all the way. It does not matter if the vanes are pointing the wrong way - they will flip over on the first turn. A light shot of silicone spray will ease the process. That suons like a usful trick, will try it next spring. Caitzu |
speedseal anyone?
On Wed, 24 Dec 2008 14:24:02 +0200, "C. S."
wrote: I've had much better luck with two pairs of needle nose pliers, grabbing vanes on opposite sides and giving it a straight pull out. A little shot of PB Blaster on the shaft hub can help if it is really stuck. Thats OK but I was thinking of a tight spot where there is not "unlimited" space in front of the impeller housing. Any solutions for that case? ==== Sometimes it is easier in that case to dismount the entire pump or turn it to a different position. |
speedseal anyone?
Capt. JG wrote:
I'm going to be hauling soon, and even though I have realitively easy access to the raw water pump/impeller, I'm thinking of replacing the cover with a Speedseal. It seems quite simple to do it, and then I'd be able to deal with a problem without fumbling for a tool. The impeller is due to get changed anyway, so while I'm there... for reference, http://www.speedseal.com/speedseal.html. Has someone used this product? What do you think? I've put them on my 2GM20FC's and have been pleased, although I haven't been able to do (or needed) an "in situ" repair. On the 2GM20F series the water pump is mounted "backwards," so the cover plate faces the engine making it totally impossible to remove the screws in place. I thought the SpeedSeal would make it possible, but even if I could get the plate off, removing the rotor would still be an issue. Once you've done it a few times, its really pretty to easy to just pull the whole thing out. Even so, the SpeedSeal with its o-ring is easier to deal with than fumbling with 6 tiny screws (which always becomes 5) and a paper gasket. The pumps get removed and opened each Fall, and a new rotor goes in (if there is any wear) in the Spring. As long as I don't remember the cost, I'm happy I got the SpeedSeal. As it turns out, I've only had one underway failure, and that was with a new rotor (50 hours?) where the hub separated from the vanes. With twin engines, problems like this are not much of an issue in open water. |
speedseal anyone?
On Wed, 24 Dec 2008 14:24:02 +0200, "C. S."
wrote: "Wayne.B" wrote in message There is a trick to getting the new impeller back in. Wrap a nylon wire tie around the new impeller, compressing the rubber vanes around the hub as you tighten it up. That should allow you to get it started, and then you snip the wire tie with cutters and push the impeller in all the way. It does not matter if the vanes are pointing the wrong way - they will flip over on the first turn. A light shot of silicone spray will ease the process. That suons like a usful trick, will try it next spring. Caitzu A useful trick for getting the cover and gasket on and off is to get two long screws of the same size as the standard cover screws, and cut their heads off. When removing the cover, first remove two screws, then insert the long screws in their holes. You can then remove the rest of the screws without risk of the cover falling into the bilge. When re-installing the cover, again put the two long screws in the pump, hang the gasket and cover on them, then you can insert the other screws without having to use three hands. -- Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca |
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