VCCA Home Forums TECHNICAL - GENERAL Mechanical - Engine, Trans, etc NOS Fuel pump

I would like to get some opinions on using a New old stock fuel pump that is least 36 years old. Would that pump still be good after sitting on a shelf all these years? It is a crimped style AC Delco.

It should work if the diaphragm is okay. On some new old stock pumps the diaphragm needs replacing first.

Does any one know of a rebuilding service for the crimped canister pumps? Thanks

For late model V/8s or what engine?
The diapham housing is crimped , rather than haveing screws? If it is the ones I am thinking of they are throw aways.

they use to be throw away, now that the pump is no longer made like the OEM one. I have seen them rebult for Fords. and you can still find NOS ones. I have one that I got from a Delco dealr last year and I think the pump was made in the 90s. but what I really want to know is a old pump going to still be good after 37 years?

I don't think any of us can give an educated answer to your question. Delco would be the people to ask the materials of construction. I doubt that anyone there can or will either know or care what was used and getting someone to give an official answer might come from either the bankers or Fed officials. And we all know how reliable is that rhetoric.

My best answer is try it.

As Chippy Dippy said...the only way to find out if it is going to work is to try it. The pump will either work or it won't.

The worst that will happen is the diaphram will crack and leak and possibley put fuel into the sump.
Tony

Hi,

I put a nice NOS fuel pump on my 1940 1/2 ton and it worked beautifully--for about 9 months; then it started leaking. I asked around and the general opinion is that the gas today will eat up the seal and gaskets of these NOS pumps. So, while they may work perfectly (as did mine), our current gas will probably get to them and destroy the seals, etc. They can be rebuilt with stuff that will withstand today's gas, but the service (as I've seen in some publications) is fairly expensive. On the other hand, it's probably the only way to retain the use of the pumps with the original glass bowl, etc.

Jim

Yeah

What is in gas today? I know that it has eat through two lawn mower gas tanks and the rubber lines the last few years. Is it just the 10 percent ethanol doing that? I live in Texas, an some of the gas stations have it marked on the pump that they contain 10% ethanol. I am just wondering how many stations have it in the tanks but don’t say so. Gas is so much different now days. I remember when you could smell gas and it had a good smell. Now it almost takes your breath away and smells awful. It is definitely not the same as it was just 20 years, ago. I know one thing, is they make the winter grade, years ago we could not or did not have to buy that. But now we have to buy that here in the south.

LKS4541:
You could ask your questions at this fuel pump rebuilding service. It's called ( THEN & NOW AUTOMOTIVE ) they are located in weymouth MA. The phone number is 781-335-1579 or 781-335-8860. e-mail. oldpartstom@aol.com
GOOD LUCK......
:vcca:

I would not be fruitful to discuss the differences in gasoline blends today and compare them to those of 10-20 years ago and the effect on elastomeric materials. The vast majority would not understand the significance of the changes nor the chemistry involved. Let's just blame it on the oxygenation agents (primarily ethanol or methanol). Though that is only a small part of the difference most know it is now in most gasoline. Alcohols are also in may of the gas additives that some add to their tanks.