I bought all my parts for the fuel pump replacement project from the local Ford dealer. My question is, how big are the banjo bolt copper gaskets.

The ones they gave me are exactly 5/8" in diameter. The banjo bolt they are supposed to go over is almost 1" in diameter. Am I missing something , or will I just get it when I take the banjo bolt out?

 

thats sound about right. The banjo bolt is 1 1/4 wrench but about right for the shank of it.
here is the part number I have for the washers
Fuel Line Banjo Outlet Seals (seals banjo fitting of "wishbone" line)
(Ford) F4TZ-9A375-A

I have reused them before with now problems.

 

tjbeggs,

You are always very knowledgeble and I always appreciate your advice.

I used the part# off the site, I just wonder if the seals given are wrong.

Without seeing the actual bolt, the inside of the pump measures almost 1". The OD of these seals is only 5/8"

Seem wrong to you too?

 

Well it does sound fishy. The banjo bolt is straight, no steps up or down. The seals contact right on the back of the pump so I guess if they don't match up they probably aren't right. Its has been over a year since I have had those parts in my hands.

 

I have changed out quite a few fuel pumps and only had one leak after reusing the old copper seals. That was my own fault, i had gotten some gunk from down in the valley up on the gaskets. They are not a bad idea, but i wouldnt consider them necessary.

 

Never done 'em on this app. but copper can be cleaned and reused if it doesn't show too much wear/damage, IMO.
- Ish

 

Just to finish out the thread...they were the wrong gaskets. The correct ones are very large.... i.d. about an inch and they are very thin.

 

So is the part number I posted incorrect?

 

No no no the parts dept pulled the wrong gaskets. As always....you are the man!

 

Is your fuel pump leaking? I am finding fuel in the valley, but only below the fuel pump. are the gaskets you are replacing known to leak?

 

The gaskets dont normally ever leak....... There is a weap hole on the bottom side of the lift pump. Brake clean the valley out and dry with compressed air. Then with the engine running check for fuel leaks directly below the pump. On my application its not to hard to see b/c i have a rear engine cover similiar to a van. You may have to use a mirror to see the leak if you have a pickup.

I have had one gasket leak, but as i said above it was due to my own fault, i dropped the washer down in the valley and got lazy and didnt wipe it off.

 

Slow...tell him the trick to get the pump out so he does not drop the plunger into the crank case....

 

I wasn't concerned about having the wrong number just wanted to make sure it was right for future reference! Glad to hear you got it worked out before you needed the parts in a bad way.

 

Its not totally necessary to use the TRICK. I dont do it and never had a problem yet. I have broke the aluminum housing off that sticks into the block and still havent dropped a plunger. I should probably buy a few lottery tickets!
I am not exactly sure on the trick, but i would say to take the fuel lines off and bump the motor off untill the lift pump. squirts fuel out of the pressure side of the pump. This will ensure that the camshaft lobe is in the up position and that the plunger does not have a chance to fall into the crankcase.

 

Yep thats the trick. I have changed a few pumps as well and never had any problems.