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Joined: Oct 2020
Posts: 7
Grease Monkey
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Grease Monkey
Joined: Oct 2020
Posts: 7 |
I installed two new fuel pumps I bought from Speedway motors part # 579-429. This part is made by Carter part # M751. I have a 1951 Chevy 216.
I have gas from the tank flowing freely to the fuel pump, nothing gets to the carb. I put a vacuum pump on fuel line from the fuel pump at the carb end and I get gas. Do I have two new bad fuel pumps or am I missing something? Any ideas?
Thanks,
Jim
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The new fuel pumps you mentioned are not made correctly and the lever is not even contacting the cam lobe. Had the same experiAnce yesterday and have heard the same complaint from others..
I think all those pumps are made at the same place and boxed with a different name.
Last edited by Chev Nut; 07/02/23 02:58 PM.
Gene Schneider
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Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
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Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
If it was me I'd remove the line from the exit side of the pump and have someone crank the starter while you watch the pump. If there's no gas pumping from the outlet my next step would be to verify I didn't miss the cam lobe with the pump lever (I've not done that but I've heard of it happening). If you have gas at the inlet but it's not pumping out the outlet with the engine turning and the lever is riding on the cam lobe you have a bad pump. If gas is pumping out the outlet you have a restriction between the pump and carburetor.
Last edited by Tiny; 07/03/23 07:48 AM.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
Eaiser - just compare the distance the arm sticks out , original to new pump. You will find a difference.
Gene Schneider
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Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
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Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
I bought a 429 a couple of years ago and it works great. It's sad they let the quality drop so far. Maybe add a rub block to the lever to bring it out if it's short?? Food for thought.
Last edited by Tiny; 07/03/23 09:13 AM.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
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Joined: Sep 2002
Posts: 2,323 Likes: 6
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Sep 2002
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I just went through this with a "carter designed" fuel Pump, two of them! I have now installed one made by Spectra and it appears to to be working. It has a chunkier looking body and I had to use longer screws to fasten it.
My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
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Joined: Mar 2017
Posts: 201 Likes: 2
Backyard Mechanic
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Backyard Mechanic
Joined: Mar 2017
Posts: 201 Likes: 2 |
I just went through the same problem with two Carter fuel pumps, neither would work. It seems that the actuating arm doesn’t depress the diaphragm until way past where the cam lobe would do so. I ended up installing one from Advance Auto Parts which does not resemble the factory part but does function properly. Either do that or have the factory one rebuilt.
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Joined: Jul 2020
Posts: 16
Grease Monkey
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Grease Monkey
Joined: Jul 2020
Posts: 16 |
Those pumps are made in China and are junk. I went with an electric with a pressure reducer and it works great on my 1950 216
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Joined: Sep 2009
Posts: 6,689 Likes: 21
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: Sep 2009
Posts: 6,689 Likes: 21 |
You may also try this: Before installing a pump, check it out to see if it makes that ugga sound when you depress the arm. If it sounds like that them it is probably good especially if you have a finger tip over the inlet and detect vacuum. Then make sure you have the cam lobe away from where it the arm will fit. if you don't it is easy to miss align the arm to where the cam will come around and activate the arm. I can't count the number of times I've installed a good pump and missed aligned the arm to cam lobe. All other bit of advice listed above my post are good ones. I'm just sharing my frustrating experience. Am too.  Best, Charlie 
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The problem is the lever is too short to reach the camshaft lobe.
Gene Schneider
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Joined: Mar 2017
Posts: 201 Likes: 2
Backyard Mechanic
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Backyard Mechanic
Joined: Mar 2017
Posts: 201 Likes: 2 |
The one that I installed resembles and may be a Delphi. I believe they’re made in Canada. Anyway, it works.
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