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Mechanical fuel pump

Old 01-29-2004, 02:42 PM
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Car: Pontiac Transam Gta
Engine: L98 350
Transmission: Th700r4
Mechanical fuel pump

I have a mechanical fuel pump and it seems to be leaking engine oil from round the edge of the top.
Does this mean its naff????
Do i need to replace it??
It still pumps fuel.....:lala:
Old 01-29-2004, 03:05 PM
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Car: '89 Formula
Engine: 305 TBI
Transmission: Auto
Replace it.

If you're getting oil in the fuel pump, there is a good chance you're getting fuel in the oil.....not good!
Old 01-29-2004, 03:40 PM
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Car: Pontiac Transam Gta
Engine: L98 350
Transmission: Th700r4
no fuel in oil had it checked mechanic said no fuel in oil although he said there were two bolts missing from passenger side block near water pump they seem to hold the bottom of the air con/smog pump bracket???? but he dosnt think oil is from there...And crank seal is not leaking or sump and timing cover.....puddle on floor though when engine running only....
thought to be coming from fuel pump out small hole in top is this possible looks like a breather hole for diaphram

any idea's????:lala:
Old 01-29-2004, 04:15 PM
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Car: 4
Engine: 6
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he said there were two bolts missing from passenger side block near water pump
if you look into the upper one of those 2 bolt holes, you'll see the fuel pump rod... you're looking right into the crankcase.

Put a SHORT bolt in the upper hole, no longer than ¾" long, with a lock and a flat washer on it; and some silicone on the threads. Then take the car to the quarter car wash and clean up your (most likely disgusting) engine bay along the lower right side, and see if you have any more oil leaks.

I'm betting there's nothing wrong with your fuel pump.
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