Cooling external fuel pump

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))

You, (IMO, for economy and ease of installation) have decided to change that.

Now, for reasons that you mention, have had multiple recent fuel pump failures with YOUR designs on your 1997 F53 chassis which left you stranded.

Maybe I'm the dummy here, but, . . . . my suggestion would be to put the vehicle back to the way it originally came from the factory using (OEM) factory parts. After all, . . . . how many years did it last before YOU . . . . . "fixed" it?

Chum lee

Don yes on the thermal paste,
If I use a clamping strap to hold it in place,
There is and industrial epoxy that is used to hold heating elements (like those used in rv fridge, in some types of Mfg machinery, it sets
Up cold, no heat, ivory white in color, and transfers heat from heating element to metal it's mounted in, but I don't have any and I don't remember the product name,
Replacing the burned out heating elements in machines used to plastic weld the ends on some plastic fuel cell canisters, the company was mfg the empty canisters, that were shipped out to be labeled and filled

Any way, this is just background info that products exist have bonding ability and heat transfer, and not be a thermal transfer barrier

Hi MrWizard,

Use the paste from what is used on the CPU chip of a computer. I think a massive aluminum heat sink would work well.

Low pressure causes vapor lock on hot fuel lines. Even new fuel pumps can and do sometimes fail to have proper fuel pressure to prevent vapor lock. It is best to address the problem and not jury rig the system.

Epoxy may void the warranty. Are you sure heat was the issue? Maybe it was just defective.
If you carry a spare you will never have trouble again ;)

rgatijnet1 wrote:
Perhaps you could form a coil of the incoming fuel lines to wrap around the pump and cool it as the fuel flows.

I think this idea would be simple, reliable and effective.

Perhaps you could form a coil of the incoming fuel lines to wrap around the pump and cool it as the fuel flows.