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Ritz wrote:
> Michael Johnson, PE wrote:
>> Michael Johnson, PE wrote:
>>
>>> Slightly Graying Wolf wrote:
>>>
>>>> Over the last month the fuel pump has progressively gotten noisier.
>>>>
>>>> Might it be on its last legs?
>>>
>>>
>>> Definitely. Consider yourself lucky for the warning. Many times
>>> they just die with no warning and leave you stranded.
>>>
>>>> Are they difficult to replace (91 LX 2.3L)?
>>>
>>>
>>> If you consider dropping the fuel tank in order to get to the pump
>>> difficult, then let a shop so the work.
>>
>>
>> One other thing, until you get it fixed don't let the fuel level in
>> the tank go below the 1/2-3/4 mark. The pump is surrounded by the gas
>> in the tank and it is what keeps it cool. Letting the fuel go low
>> lets the pump heat up and increases the chance of it failing.
>
>
>
> By the same token, if it actually fails when the tank is pretty full, it
> can be a supreme pain in the rump to pull the tank when it's that heavy
> with fuel. My suggestion is to just run it down to 1/4 tank (or a
> little less) and take it to a shop unless you've got access to a lift.
> This definitely isn't a job I'd want to do on ramps on a cold garage
> floor....
My comment was made in the light of the pump not being fixed. It is
quite easy for the shop to drain the tank and in many ways I would ask
them to in order to remove any sediment accumulated in the bottom.
However, with the price of gas nowadays it isn't the most economical of
decisions to roll into the shop with a full tank.
Backyard Mechanic wrote:
> What is it causes problems when it overheats Mike?
Could be a number of things. If the pump is working harder to provide
fuel then the it consumes more power. If it consumes more power then it
will run hotter which increases the odds of a bad pump failing sooner.
Just like any other electric motor.
> The jacket or the bearings?
>
> Does the tank fuel cool the bearings or does fuel flow cool and lube the
> bearings?
The simple questions is will the pump run cooler submerged in a liquid
or suspended in a gas? My bet is on the liquid. Would you freeze to
death faster in 30 degree ice water or 30 degree air?
> Engage some of that Engineering knowledge.
I haven't done that since leaving college 20+ years ago. ;)
> Like I said; IN THIS CASE the latent fuel temp is moot!
Maybe and then maybe not. I would error on the side of caution and run
with a nearly full tank until the pump is replaced. It might make the
difference between driving the car to the shop or having it towed.
Slightly Graying Wolf wrote:
> Over the last month the fuel pump has progressively gotten noisier.
>
> Might it be on its last legs?
>
> Are they difficult to replace (91 LX 2.3L)?
>
> John
>
>
No it's an easy ten minute job. It's getting the fuel pump cover off
and back on that's a real bitch....
Backyard Mechanic wrote:
> What is it causes problems when it overheats Mike?
>
> The jacket or the bearings?
>
> Does the tank fuel cool the bearings or does fuel flow cool and lube the
> bearings?
>
> Engage some of that Engineering knowledge.
>
> Like I said; IN THIS CASE the latent fuel temp is moot!
>
>
>>
>> Are they difficult to replace (91 LX 2.3L)?
>>
>> John
>>
>>
>
> No it's an easy ten minute job. It's getting the fuel pump cover off
> and back on that's a real bitch....
>
Okay, I'll play... that's only if you dont have a pair of sawhorses and a
hoist.
;)
--
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!
All the Ford branded pumps I get are complete.... however, many aftermarket
pumps are supplied just as you describe...
"Kruse" <kruse@kansas.net> wrote in message
news:1134744212.200165.244790@g43g2000cwa.googlegroups.com...
>
> Michael Johnson, PE wrote:
>> Slightly Graying Wolf wrote:
>
>> > Might it be on its last legs?
>>
>> Definitely. Consider yourself lucky for the warning. Many times they
>> just die with no warning and leave you stranded.
>
>
> Yea, although Ford pumps are noiser than most others. But it probably
> should be done while it still runs. What I find interesting about all
> this is that the pump is one price and the fuel pickup is another price
> and you have to have BOTH to get the pump warranty. The price of the
> fuel pickup is pretty high when you consider it's just a small plastic
> screen. I guess they need to make their money somehow.....
>
Backyard Mechanic wrote:
> What is it causes problems when it overheats Mike?
>
> The jacket or the bearings?
>
> Does the tank fuel cool the bearings or does fuel flow cool and lube the
> bearings?
>
> Engage some of that Engineering knowledge.
>
> Like I said; IN THIS CASE the latent fuel temp is moot!
>
>
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