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Fuel transfer/polishing pump
On Fri, 28 Nov 2003 20:36:38 -0500, "Doug Dotson"
wrote: Steve, Thanks for the pics of your system. Any suggestions on TP vs PT filter? I'd say that if you have the room, go for the big one. I didn't have the room for the height of the PT filter so I went with 2 TP filters. For the elements, I use the 1000 sheet Scott rolls. They're tightly wound, dense, and when compressed into the cartridge and soaked in fuel oil make a surprisingly solid mass. It's interesting that when you soak a roll of TP in water, it falls apart but when you soak it in diesel, it becomes a strong solid element. Steve "Steven Shelikoff" wrote in message ... On Fri, 28 Nov 2003 18:01:15 -0500, DSK wrote: Steven Shelikoff wrote: ..The main advantage of the paper depth filters is that they can filter down to very small particle size and they can hold a whole lot of crud, large and small, without clogging up. IOW, perfect for fuel polishing. IMHO the only benefit is that they soak up a lot of water. They probably do trap a lot of particles but also shed them. That hasn't been my experience with them. My experience is that they do not shed significantly (they haven't clogged the 2 micron Racor behind them yet) and that they do trap a lot of particles. I guess they also make good water separaters but I wouldn't know that since I've never had a problem with water in my fuel even before I put on the GCF filters. .... The Racor 2 micron filter that's past the TP filters is now 2 years old and is still clean. That's like bragging about how many times you can use the same condom. You lol, not quite. Otherwise, we'd be changing Racor elements every time we start the engine. Unlike condoms, the Racor elements are safe to keep using until they get dirty. could have spent the same amount of money on filter elements instead of the TP filter system, and have cleaner fuel. That also hasn't been anywhere near my experience. A lot of boats have their primary fuel filter in a difficult location. That's not an excuse to try and stretch the filter, it's a reason to either 1- buy a different boat or 2- remake the system so that you can change the filter element easily & quickly. My Racor is very easy to change. The engine mounted filter a little less easy, but it's still only a 10 minute job. Changing either of them required bleeding the fuel system though. With what I have now, I can change either the GCF filter or the Racor and not get any air into the engine. I can shut off fuel to the engine and bleed the part of the system with those filters with the walbro pump. I can even change the GCF filters and bypass them to keep the engine running if it's necessary. I do have to shut off fuel to the engine to bleed them properly, although filling them with fuel before putting the lid on really helps there so if it was really an emergency, I could probably keep the engine running. BTW if you buy filter elements by the carton, you can carry a lot of them and not pay much. The main problem is that I had to change 2 of the Racor elements when the engine died after operating only 20 minutes each. And with the amount of crud in the tank, that trend was likely to continue for a long time. That's totally unacceptable no matter how cheap you get the elements (they're still expensive even by the case) or how many you carry. The GCF 01-Jr filters before the Racor totally solved the problem and cost me about the same as having the tank cleaned and the fuel in it polished. Now, I have that accomplished and still have the system installed for future use. I know a lot of people here will tell you a lot of bad things about the GCF PT or TP filters. But probably none of those people actually used them to solve a specific problem. I have first hand experience and for me, they're working great. Steve |
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