CARTER fuel pump

[Canadian1968]

I have a Carter pump like this one
https://www.summitracing.com/parts/crt-m6900

Can I separate it and rotate the inlet and outlet ports so that point in different direction does anyone know ?

 

[Auto Teach]

I have a Carter pump like this one
https://www.summitracing.com/parts/crt-m6900

Can I separate it and rotate the inlet and outlet ports so that point in different direction does anyone know ?

Yes I believe you can

 

[zyzzyx]

Yes, it's similar to the Hemi High volume pump for dual quads. Eight screws on the underside.
you can rebuild it also!

 

[hunt2elk]

You can rotate the bottom. When you take it apart look at the holes in the gasket. If they are oblonged, it should be replaced. Those pumps have been coming with heavy springs and putting out 9-10 psi jfyi.

 

[Kern Dog]

One I have put out 11. I have a bypass regulator in my setup.

 

[khryslerkid]

You need to preload the pump leaver before tightening the screws to keep the diaphragm from elongating the screw holes.

Rebuilding one is debatable. Finding a kit is almost impossible. Only one outfit that I know of can rebuild one and after that then you can rebuild it again.

Then and Now Automotive
447 Washington Street
Weymouth Ma. 02188
Ph# 781-335-8860
www.then-now.com

https://www.forbbodiesonly.com/moparforum/threads/mechanical-fuel-pump-101.194336/

Contact Member @Mike-Casella for more info.

 

[hunt2elk]

One I have put out 11. I have a bypass regulator in my setup.

Yeah, it really sucks that a guy has to send brand new Carter pumps off to get rebuilt. I had to do that on the last 3 I bought because I didn't want to run an external regulator.

 

[Kern Dog]

It turned out to be a blessing for me. The regulator and bypass eliminated my vapor lock and fuel delivery problems. The car runs the same in 30 degrees as it does in 110.

 

[Canadian1968]

i have been running the pump for a few years now. The car runs great, but to be honest i have never checked the fuel pressure.

The only reason for the original question, is that I am doing bit of an engine bay make over, and want to route my fuel line a bit different. Currently the out port basically aims at the front passenger headlight. Now that I a know it can be moved that will make my plumbing was easier.

You guys kind of have me wondering about the fuel PSI now, but... hey if its not broken don't fix right ??

 

[pnora]

If you have a street car and do not want to have to use a regulator use this pump. https://www.summitracing.com/search...eywordMatch&SortOrder=Ascending&keyword=M6903

 

[Dave6T4]

Has anyone ever had fitment problems with those rebuildable pumps? I remember years ago, both a friend of mine and I bought these for our 440's through Mopar Performance, and the body was large enough that it would not bolt up, hitting the block. I now use the Carter 440 Six Pack pump, with no problems of too much fuel pressure.

 

[hunt2elk]

If you have a street car and do not want to have to use a regulator use this pump. https://www.summitracing.com/search...eywordMatch&SortOrder=Ascending&keyword=M6903

Actually, that 6903 is the model with the biggest problem. I have switched over to this Edelbrock. They run at 5.5 psi.
https://www.summitracing.com/parts/edl-1723

 

[Slap Stick]

Yeah, it really sucks that a guy has to send brand new Carter pumps off to get rebuilt. I had to do that on the last 3 I bought because I didn't want to run an external regulator.

What do ya expect from the company that makes FRAM filters?

 

[pnora]

Actually, that 6903 is the model with the biggest problem. I have switched over to this Edelbrock. They run at 5.5 psi.
https://www.summitracing.com/parts/edl-1723

I had to much pressure with the 4862 pump thats why I went with the 6903 which did the job. I wonder what the difference is between the 6903 and the 6900? The specs look identical at a quick look.

 

[hunt2elk]

I had to much pressure with the 4862 pump thats why I went with the 6903 which did the job. I wonder what the difference is between the 6903 and the 6900? The specs look identical at a quick look.

Looks like the 6900 is for a Chevy in the description posted by the op.

 

[hunt2elk]

What do ya expect from the company that makes FRAM filters?

Didn't know that. Did they recently buy Fram, or just make filters for them?

 

[pnora]

Looks like the 6900 is for a Chevy in the description posted by the op.

I see that now. I just assumed it was for a Mopar.