GordnadoCRD wrote:
I would be interested in seeing the broken down parts laid out with the failure indicated.
I'll see what I can do on that front, because I'd like to know what went South as well. It may be a while before I have the time to do it, though.
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I would be willing to bet many air in fuel issues people fight come from some issue with the fuel head.
Agreed. I'm just hoping that the problem doesn't repeat itself with the new one.
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I would reconsider which is worse though... An air into fuel leak that is nearly invisible to be found, and frustrating to the point that some just give up and sell it on, OR, a fuel leak which can be seen rather soon, and repaired; Job Done.
From that standpoint: yes, agreed.
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AS far as construction goes, there are rubber gaskets between the filter and the fuel heater unit, which is held to the primary base by a dual=threaded tube.
From what I've seen so far of units that have been taken apart, it's both conceptually (and functionally) similar to kits I've used in the past for remote-mounting oil filters on gas engines. Makes sense, because that's essentially what the fuel filter head is.
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When you remove the tube, it loosens the fuel heater and temp sensor "donut" from the base. This plastic donut is the source of many problems. Cracking is surprisingly common. There are also rubber gaskets between the heater donut and the primary base.
Thanks for the heads-up; I'll keep an eye out for that once I'm in there.
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The heater is 300watt. Its as much as makes no difference to the circulating fuel, but when in such close and pressurized proximity, it could cause that gasket to fail as well.
Makes sense, and yes, I can't see how the heater could do much good for fuel moving past it, either. About the only thing I can think of is that its main purpose is to heat the filter head (which I've burned my hand on the output side of before) in order to provide some resistance to gelling in cold temperatures. Even so, it doesn't seem like it would be terribly effective.