[grd777]

Looks like I have a oil leak near the fuel pump. I changed the gasket and tighten the bolt could be leaking from there or somewhere else . Seems odd it would leak oil from the fuel pump any help would be great

[Bentwheelbob]

What year is your car what engine does it have?

[grd777]

Originally Posted by Bentwheelbob

What year is your car what engine does it have?

Sorry a 1975 t/a has a 1970 400 engine

[abefromen]

Supposed to be a special fiber/rubber coated flat washer under the bolt heads.

[grd777]

Originally Posted by abefromen

Supposed to be a special fiber/rubber coated flat washer under the bolt heads.

do you mean the bolt heads for the fuel pump (both bolts )

[abefromen]

Originally Posted by grd777

do you mean the bolt heads for the fuel pump (both bolts )

yep.....

[abefromen]

use these washers they are the same.

https://www.ebay.com/itm/Auto-Trans-...EAAOSwkCdcpw4J

[Aus78Formula]

Haven't seen that before, specific to Pontiac engines? I guess it seals the bolt shaft hole once tightened, are they open threads into block inner?

[grd777]

Originally Posted by abefromen

use these washers they are the same.

https://www.ebay.com/itm/Auto-Trans-...EAAOSwkCdcpw4J

should i use them on both bolts

[abefromen]

Originally Posted by Aus78Formula

Haven't seen that before, specific to Pontiac engines? I guess it seals the bolt shaft hole once tightened, are they open threads into block inner?

Pontiac yes maybe others too.

yes they are open holes exposed to oil.

[abefromen]

Originally Posted by grd777

should i use them on both bolts

yes unless you want it to still seep oil.

[1969GiPper]

Originally Posted by Aus78Formula

Haven't seen that before, specific to Pontiac engines? I guess it seals the bolt shaft hole once tightened, are they open threads into block inner?

No. On a real Pontiac V8 engine the fuel pump bolts to the timing chain cover, not the block like a Chevy. Have seen cracks in the side of the aluminum timing cover just above the fuel pump that can leak oil and look like it’s the pump that’s leaking.

[abefromen]

Originally Posted by 1969GiPper

No. On a real Pontiac V8 engine the fuel pump bolts to the timing chain cover, not the block like a Chevy.

Yes it mounts to the timing cover but the holes are not blind they are open and exposed to oil.

Why do you think special washers are used there? To stop oil seepage past the threads.

[grd777]

Originally Posted by abefromen

Yes it mounts to the timing cover but the holes are not blind they are open and exposed to oil.

Why do you think special washers are used there? To stop oil seepage past the threads.

great info guys thanks

[Held for Ransom]

Only the inner bolt (closest to the block) goes into an area that might leak oil. If this was a problem, they would have redesigned it years before '70 (or '75).

[grd777]

Originally Posted by Held for Ransom

Only the inner bolt (closest to the block) goes into an area that might leak oil. If this was a problem, they would have redesigned it years before '70 (or '75).

would the oil leak come form somewhere else

[Held for Ransom]

How bad is it leaking? Was the surface area gouged? Was the '70 engine rebuilt? Could be leaking from the crank seal and slinging all around and winding up on the fuel pump.

[grd777]

Originally Posted by Held for Ransom

How bad is it leaking? Was the surface area gouged? Was the '70 engine rebuilt? Could be leaking from the crank seal and slinging all around and winding up on the fuel pump.

very little , when i touch the bolt i feel oil . i had all the gasket replaced

[unruhjonny]

weird;
I have never seen anything special connecting the fuel pump to the timing cover;
If the oil at the back of the bolt was under excess pressure, I could maybe see it seeping along the threads... but this scenario just sounds funny.
But hey, I've been wrong before, and I did get my car (also my first car) the year it became a classic...

[grd777]

Originally Posted by unruhjonny

weird;
I have never seen anything special connecting the fuel pump to the timing cover;
If the oil at the back of the bolt was under excess pressure, I could maybe see it seeping along the threads... but this scenario just sounds funny.
But hey, I've been wrong before, and I did get my car (also my first car) the year it became a classic...

yes it does seem odd . for all the years i worked on fords never seen this happen . but i do think it is leaking from the bolt