Fuel transfer/polishing pump
Subject: Fuel transfer/polishing pump
From: "Len Krauss" As for stirring up the crud, one guy told me he shoots a jet of air around the bottom of his tanks. Has a small L-shaped copper tube on an air hose, and with it tied to a dowel/rod pushes it to bottom and "aims" it around. He'll them sometimes just let the thing bubble away while polishing to help keep particulate matter in suspension. But he is only stirring up one baffeled area in the tank unless he has access plates to each area. No offense, but how many of you have actually seen the insides of a well built marine fuel tank? Capt. Bill |
Fuel transfer/polishing pump
Subject: Fuel transfer/polishing pump
From: "Len Krauss" That works. Only if your tank has no baffels. Capt. Bill |
Fuel transfer/polishing pump
Subject: Fuel transfer/polishing pump
From: "Len Krauss" That works. Only if your tank has no baffels. Capt. Bill |
Fuel transfer/polishing pump
Subject: Fuel transfer/polishing pump
From: "Len Krauss" Doug - Since you're messing around with changes, you might what to have a look at what friend Ray did for ideas if nothing else. See: http://sundowner.thebilge.com/fuelsystem.htm Len "So far the system has been great. After the initial polishing of all of the old fuel (it turned out to be perfectly clean wouldn't you know!), I have had no issues at all. Now they're is a glowing unbiased review. :-) Capt. Bill |
Fuel transfer/polishing pump
Subject: Fuel transfer/polishing pump
From: "Len Krauss" Doug - Since you're messing around with changes, you might what to have a look at what friend Ray did for ideas if nothing else. See: http://sundowner.thebilge.com/fuelsystem.htm Len "So far the system has been great. After the initial polishing of all of the old fuel (it turned out to be perfectly clean wouldn't you know!), I have had no issues at all. Now they're is a glowing unbiased review. :-) Capt. Bill |
Fuel transfer/polishing pump
Bill,
That's what I used to have and it lead to the failure of my lift pump. That's why Yanmar sent me a letter threatening to void my warranty it I used any filter smaller than 30 uM. That's why the mechanic in FL said that they replace hundreds of failed lift pumps a year due to folks using 2 uM Raycors. Mostly because the engine mounted filters are harder to charge because they generally require the system to be bled. So folks use a Raycor that is too small out of laziness to avoid changing the engine filter. The stress on the lift pump causes it to fail prematurely. Engine is a Perkins 4-236. It burns 1 GPH. Don't know the true flow rate but the return flow rate is pretty small. Doug "LaBomba182" wrote in message ... The filter on the engine seems to prevent ,ost remaining gunk from reaching the injector pump and injectors. It must since it seems to be the one that was clogging up most. Like I said, look into putting a large size small micron filter BEFORE the engine mounted one. I want my filtration system to stop crud before it gets to the engine filter. By the way, and I might have missed this, what kind of engine do you have? And what is it's true GHP flow rating? In other words it's burn plus return GPH. Capt. Bill Capt. Bill |
Fuel transfer/polishing pump
Bill,
That's what I used to have and it lead to the failure of my lift pump. That's why Yanmar sent me a letter threatening to void my warranty it I used any filter smaller than 30 uM. That's why the mechanic in FL said that they replace hundreds of failed lift pumps a year due to folks using 2 uM Raycors. Mostly because the engine mounted filters are harder to charge because they generally require the system to be bled. So folks use a Raycor that is too small out of laziness to avoid changing the engine filter. The stress on the lift pump causes it to fail prematurely. Engine is a Perkins 4-236. It burns 1 GPH. Don't know the true flow rate but the return flow rate is pretty small. Doug "LaBomba182" wrote in message ... The filter on the engine seems to prevent ,ost remaining gunk from reaching the injector pump and injectors. It must since it seems to be the one that was clogging up most. Like I said, look into putting a large size small micron filter BEFORE the engine mounted one. I want my filtration system to stop crud before it gets to the engine filter. By the way, and I might have missed this, what kind of engine do you have? And what is it's true GHP flow rating? In other words it's burn plus return GPH. Capt. Bill Capt. Bill |
Fuel transfer/polishing pump
"LaBomba182" wrote in message ... Subject: Fuel transfer/polishing pump From: "Doug Dotson" Makes sense, but there is quite alot of evidence out there that a polishing system is a good thing to have. I can't really increase the size of my on-engine filter. I could increase the size of the Raycor, but at the pore sizes I run (30 micron) in it make it necessary to change the on-engine filter regularly as well. Bigger Raycor won't fix the problem. What's the GPH on your engine? 1 GPH is what I consume. Don't know the fuel return rate. If you go to a larger Racor you could easily change to a smaller micron element. It fact, I have never understood why people don't run as small a micron element as they can in the first filter after the fuel tank. Why let anything near the micron size of the engine mounted filter get to that filter at all? Because small filters ahead of the lift pump stress the pump and cause premature failure. No fun. Capt. Bill |
Fuel transfer/polishing pump
"LaBomba182" wrote in message ... Subject: Fuel transfer/polishing pump From: "Doug Dotson" Makes sense, but there is quite alot of evidence out there that a polishing system is a good thing to have. I can't really increase the size of my on-engine filter. I could increase the size of the Raycor, but at the pore sizes I run (30 micron) in it make it necessary to change the on-engine filter regularly as well. Bigger Raycor won't fix the problem. What's the GPH on your engine? 1 GPH is what I consume. Don't know the fuel return rate. If you go to a larger Racor you could easily change to a smaller micron element. It fact, I have never understood why people don't run as small a micron element as they can in the first filter after the fuel tank. Why let anything near the micron size of the engine mounted filter get to that filter at all? Because small filters ahead of the lift pump stress the pump and cause premature failure. No fun. Capt. Bill |
Fuel transfer/polishing pump
Not sure that matters much. If the fuel can negoatiate the baffles
then I suspect the crud can as well. Hence the problem. Once the fuel is shaken not stirred :) Doug "LaBomba182" wrote in message ... Subject: Fuel transfer/polishing pump From: "Len Krauss" That works. Only if your tank has no baffels. Capt. Bill |
All times are GMT +1. The time now is 02:45 AM. |
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 BoatBanter.com