got a fuel leak need help

[dyingdeadman]

got a fuel leak coming from the front of my engine, I found where the leak is just not sure what the part is called. (sry no pics dont have a digital camera)
its a cylender looking thing that has 2 hoses and 1 steel fuel line attatched to it. it attaches to the block on the passenger side of the engine towards the front.

could this be a fuel pump?

oh almost forgot its on my 72 gmc 3/4 ton with a 402 engine.

[mikeoj]

Yes,Fuel pump.

[dyingdeadman]

ok, dang guess i am off to the parts store. thank you for the quick reply


this board rocks

[dyingdeadman]

one more question for now anyway, is there a gasket that could be leaking in it, that could be replaced or do i have to replace the whole thing?

tried to find the whole pump but havent hand any luck yet.

[mikeoj]

Whole thing.

[dyingdeadman]

thank you again. looks like i am going to have a troube finding this part.

is there a way to bypass it with an electric one?

[mikeoj]

Finding a fuel pump shouldn't be a problem.Local parts store,Summit.or one of board members in Texas could probably set you up with one.Good Luck,Mike

[dyingdeadman]

thank you,

i finally found one at a local parts store. called like 5 of them but did find one, of course they have to order it. it was 99 bux and i have to wait a week for it to come in.

thank you for all your help.

[LONGHAIR]

99 dollars is very high for a stock type replacement pump. Even the higher volume racing pumps are only about $89.
You can get a stock type pump from NAPA for less than $20.

[71swb4x4]

http://www.partsamerica.com/PartDeta...ype=52&PTSet=A

Here is a Carter with a lifetime warranty for $20.

[dyingdeadman]

I thought 99 bux sounded a little high to me. 20 is much better. glad i didnt order that $99 one yet. I will go to parts america or napa for it tomorrow. thanks

[dyingdeadman]

one more quick question. i have never had to replace a mechanical fuel pump before, anything special I need to do while takeing the old one off and putting the new one on? or do i just unhook the lines and unbolt it from the block?

[Longhorn Man]

Unhook, remove from block.
Then the push rod will probably fall out...or down at least.
You'll want to have an assistant bump the engine over while you are pressing the push rod up into the engine. It is driven by the cam, it''either go up, or down, it won't bite you or try to pinch. When you have it in the upward position, tell the assistant to stop. Pull the push rod out all together, and put a big 'ole dallop of grease on the one end, and stick it back up in there and shove it up all the way. The grease will hold it up so you can slip the arm under the rod with minimal fuss.
It sounds kinda complicated, but it is very simple.

[donkey69]

Longhorn Man is right....I've had good luck with the ol' grease trick! less cuss words anyway!

[Longhorn Man]

Small blocks are cooler becouse there is a bolt you can remove and install a long bolt...and it'll hold the push rod up there....but you big block guys have to do it the messy way. I hate dealing with grease.

[dyingdeadman]

thankyou, i will probely give it a shot tomorrow evening.

[tmcgrawlookalike]

the correct pump is a carter #m6628,has a canister type body to it,as alot of bb chevys had back then.when you get under there,you will see a hex headed plug that is at an angle.this is for taking the fuel pump rod in/out of block.when you have the pump out,take out the plug and put it grease on it like longhorn said,push it up in there and it will stay by itself.put it all back together and go.

[jimfulco]

Some folks bend a piece of wire so it will hold the rod up while they're installing the pump.

[Blue68]

Now if it were a small block, I've got a couple I'd give you. And I was just in Austin last weekend.