pianotuna wrote:
Chum lee wrote:
MrWizard wrote:
The pump failed Monday afternoon and left me broke down, this pump was less than a year old (replacement pump was was a warranty exchange), not near the exhaust or anything hot, except for the street!
Anybody else ever try this
What do you think
Here's what I think.
Just a few questions for you. Why do you think the engineers at Ford (after building 100,000's of vehicles like yours (over 100 years) made the engineering decisions that they did? (submersing the main fuel injection pump in the fuel tank (IMO, using fuel for cooling purposes))
I suspect that MrWizard inherited this "condition" from the previous owner.
How about offering a solution other than putting a pump back in the tank?
How is that even done? If a new tank and pump are needed it may cost a pretty penny.
A new fuel tank, or dropping, cleaning the existing tank in a Class A F53, IS labor intensive/expensive, . . . . but possible.
Just a few thoughts from the mind of an unpaid 67 year old retired experienced engineer. I know "a little bit" about pumps. That said, I have no idea if Mr. Wizard (or anyone else) pulled the old failed fuel pump out of the existing fuel tank, (I doubt it) what went wrong with it, or what the fuel tank pump inlet, or interior condition looks like. I can tell you from years of direct personal experience with rotary cell/turbine submersible fuel pumps that that they are designed to have a slightly positive inlet pressure. NOT A PARTIAL VACUUM which can create flow instability, cavitation, overheating, etc. If the original failed fuel pump is still in place, or the fuel tank vent(s) or primary fuel filter/sock (if it exists) is (partially) blocked, that will be the case and the new (auxiliary) pump will work harder than it was designed to do, leading to current overload, overheating, and premature failure(s).
I DON'T KNOW, I'm guessing here (trying to be helpful) with little to no initial background/photos information. I'm not pretending like I know. My initial instinct (based on 5 years of automotive technical training, 5 years of automotive/machine shop experience, 5 years of engineering school (graduating with highest honors) (the rest is direct field experience)) is NOT to put a Bandaid over a Bandaid. FIX THE PROBLEM. Sorry it's not the answer "you" guys want to hear. Do what you want.
Yes, I agree, there are plenty of parts suppliers out there. IMO, for critical needed parts your best bet is at the Ford dealer or certified OEM parts suppliers.
Changing the design, IMO, is opening a can of worms. (chances are, as the new design team engineer, you will lose that bet) Your choice.
Chum lee