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Discussion Topic:
1938 Ford stalls when stopping
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Blindhuckster |
02-06-2023 @ 5:57 PM
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Member
Posts: 5
Joined: Jun 2020
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Not sure if you have the Stromberg 97 carb, but I found these 4 part videos on Youtube very helpful when rebuilding my 97 carb. https://www.youtube.com/watch?v=XBAD1BwoFv0&t=1s
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Catfish Jones |
02-07-2023 @ 9:04 AM
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Member
Posts: 37
Joined: Feb 2023
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Thanks to everyone for sharing their knowledge. My carburetor in a Chandler Groves, I think a model 94. Anyone have any experience rebuilding on of those? Below are some pictures of the carburetor.
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carcrazy |
02-07-2023 @ 9:37 AM
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Senior
Posts: 1650
Joined: Oct 2009
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The Chandler Groves Carburetor became the Holley 94 Model after 1938. Rebuilding techniques should be similar to those for the Holley.
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ford38v8 |
02-07-2023 @ 11:01 AM
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Senior
Posts: 2758
Joined: Oct 2009
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Catfish, your carb is indeed a 94, and was manufactured by Ford, as confirmed by the F near the base of the accelerator pump. It is one of several of the era, identical in all but cosmetic respects. One more photo can nail it down specifically as being either 1938 or 1939: the driver side float bowl will be without a mark of any kind (1938), or will have 91-99 (1939) . Both examples are scarce, hard to find, and of considerable value. Rebuilding a 94 is not difficult, but will require specific parts not found in most rebuild kits. I would advise using parts available from daytonaparts.com for functionality, but do not use any colorizing at all.
Alan
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Catfish Jones |
02-07-2023 @ 11:15 AM
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Member
Posts: 37
Joined: Feb 2023
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Thanks Carcrazy and Ford38V8. Ford38V8 you mentioned “but do no use any colorizing at all” I’m not sure what that means.
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Catfish Jones |
02-07-2023 @ 11:25 AM
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Member
Posts: 37
Joined: Feb 2023
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Tim at Daytona parts told me the problem could be the fuel pump is putting out too much pressure. This will cause the level in the bowl to be too high. He said if the pump was rebuilt with an inferior kit, the spring rate could be too stiff. What is the correct discharge pressure for this pump? How do you measure it without cutting and teeing into the discharge line?
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ford38v8 |
02-07-2023 @ 12:31 PM
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Senior
Posts: 2758
Joined: Oct 2009
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One of the services at Daytona is to restore the color appearance of carbs. My advice is to pass on that option. Tim is correct, new pump kits may include springs that overpressurize your carb, which requires a max of 3psi. The simple fix is to reinstall the old spring if it is still available. Some simple vacuum test gauges can also test fuel pressure. Do not cut the line, just disconnect from carb for the test. The tester will have a rubber push-on connector.
Alan
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Catfish Jones |
02-07-2023 @ 1:00 PM
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Member
Posts: 37
Joined: Feb 2023
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Great, thanks Alan.
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sarahcecelia |
02-07-2023 @ 4:05 PM
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Senior
Posts: 1182
Joined: Mar 2013
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If the idle mixtuure screwa sre too lean; the car will stall when you stop. Tryi backing off (out) each one about 1/16th of a turn.
Regards, Steve Lee
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40 Coupe |
02-08-2023 @ 7:54 AM
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Senior
Posts: 1674
Joined: Oct 2009
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The rebuilding of the Carb. is the same as for the 1939 and 40 Holley or Ford 94 model 91-99 and can be found in the Ford Service Bulletins. Most rebuilding kits contain enough instructions to get you going. The link on the side of the Carb from the base accelerator linkage to the bottom of the round accelerator pump rod should have the letter "C" stamped on it.
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