Mechanical fuel pumps

[SlinktRR]

I have an Edelbrock pump that has started leaking fuel through the gasket. Is there a rebuild kit for these?

Also, was looking at a possible replacement. Any recommendations? I have looked at the carters on summit which look very similar to the OEM for around half the cost of the Edelbrock pumps, but don't know how they are quality-wise. This is for a 383. Thanks!

 

[67Satty]

I run a Carter M6903 and have been happy with it.

 

[wedge69]

Eddi make's a kit that would save you some Green !
I like there pumps and have run them. Carter is good also But if you already have the pump just rebuld it.

 

[razreddobie]

How much fuel do you have to feed that 383? I have a stock 6pac pump on my 440 with a 850 Holley and it works fine.

 

[SlinktRR]

How much fuel do you have to feed that 383? I have a stock 6pac pump on my 440 with a 850 Holley and it works fine.

The motor has 330hp at the crank, so not much. The edelbrock works well with the carb I have so I'd like to keep running it, but I can't find the rebuild kits for sale.. may try the carter. Thanks for the suggestions.

 

[Gpuller]

I'm running a M6903 also. Got it from Mancini's.
My original M6903 was from '89 and it took a dump last spring. Figured I just order a rebuild kit for $40 and be on my way. Wrong, the diaphragm in the rebuild kit was no where close to fitting. Sent it back and bought another M6903. Of course I was the first one to have that problem.

 

[lewtot184]

i'm surprised that pump is leaking past the diaphragm. i'd try looking at the screws to see if any are loose. the edelbrock mechanical is a carter 6903 with a few mods. i like 6903's and never had one fail. the rebuild kits that mancini sells are junk, don't buy them!

 

[Gpuller]

i'm surprised that pump is leaking past the diaphragm. i'd try looking at the screws to see if any are loose. the edelbrock mechanical is a carter 6903 with a few mods. i like 6903's and never had one fail. the rebuild kits that mancini sells are junk, don't buy them!

Agree about the rebuild kits. Where do you get a good rebuild kit for them? Searched the 'net and only came up with Mancini.

 

[lewtot184]

don't think there any rebuild kits. i've got one thats been on the car since about '85; still pumping good. never had one break. they're not super complicated to take apart and diagnose.

 

[Gpuller]

Yes, they are simple, have seen videos and threads on rebuilding them with new valves and diaphrams. So when mine died after 24 years figured a kit would take care of it. Not so much. Pump was $36 back in '89, now they are $100. Just a little inflation.
Figured I had good luck with the old one might as well give it another go.

 

[lewtot184]

Yes, they are simple, have seen videos and threads on rebuilding them with new valves and diaphrams. So when mine died after 24 years figured a kit would take care of it. Not so much. Pump was $36 back in '89, now they are $100. Just a little inflation.
Figured I had good luck with the old one might as well give it another go.

you sure got your money's worth out of that one! i'd just get a new one and move on. you might save the old one for spare parts.