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Fuel primer

 
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zeke57
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Joined: Dec 28, 2017
Posts: 192
Location: Salamanca,NY

PostPosted: Fri Aug 07, 2020 10:21 am    Post subject: Fuel primer Reply with quote

I have noticed if my a1 sit's for any period of time it is very hard to start so I have to remove the air cleaner tube and squirt gas into the carb. I have read about solution's to this problem among them being installing a fuel pump with a primer arm or the primer setup which I believe fill's the carb bowl from a device mounted inside the cab. I see Kaiser-Willys has a fuel pump with a primer arm for $146 anyone know if this pump is of good quality? And I also found the NOS primer setup at Debella's for $300+. Are these basically the only two ways to prime the system for quicker starting or does anyone know of other option's. Thanks all.
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RonD2
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Joined: Oct 02, 2014
Posts: 771
Location: South Carolina, Dorchester County

PostPosted: Fri Aug 07, 2020 11:15 am    Post subject: Reply with quote

Drive it more often.

Just sayin... Shocked
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Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

“The only good sports car that America ever made was the Jeep."
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OKCM38CDN
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Joined: Feb 17, 2012
Posts: 401
Location: Del City, OK

PostPosted: Fri Aug 07, 2020 11:17 am    Post subject: Reply with quote

I have the same problem with my M-38CDN and 637 carb, what I do is open the carb vent line to the air filter and squirt gas into the float bowl. Close it back up and she starts right up.

What is happening ios the gas is evaporating out of the carb thru the vent (IMO), I live in Oklahoma and it get quite warm even with the jeep in a garage... if I drive it regularly no problem only happens when store for long periods...
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Hal, KB1ZQ
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1952 M-38 CDN CAR 52-31313
1952 M-100 Strick #104
1951 Willys Wagon (For Sale)
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mdainsd
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Joined: Oct 20, 2017
Posts: 369

PostPosted: Fri Aug 07, 2020 2:37 pm    Post subject: Reply with quote

My M38s have the original style dash mounted primers. While they work great, I find little use for them. Even after sitting, literally for months, no more than 10 seconds of cranking brings them to life, without using that primer. The primer definitely is a plus when they get run out of gas though.
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'52 Dodge M37, '42 GPW, '48 FrankenJeep CJ2A/M38, '50 CJV-35(U), '51 M38, '42 WC-57 Command Car, '44 WC-51 Weapons , (2) M1941 Sperry 60" Anti-Aircraft Searchlights, John Deere M-gator, '44 White M3A1 Scout Car
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4x4M38
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Joined: May 30, 2014
Posts: 3046
Location: Texas Hill Country

PostPosted: Fri Aug 07, 2020 8:37 pm    Post subject: Reply with quote

If you have the original carburetor but without the primer arm there are a couple of small parts and the arm itself that are available and should be an easy retrofit.
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Brian
1950 M38
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zeke57
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Joined: Dec 28, 2017
Posts: 192
Location: Salamanca,NY

PostPosted: Sun Aug 09, 2020 12:04 pm    Post subject: Reply with quote

I am not seeing any mention of a primer arm on the carb in any of my manuals. The only primer arm that I am aware of is on the fuel pump.
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4x4M38
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Joined: May 30, 2014
Posts: 3046
Location: Texas Hill Country

PostPosted: Sun Aug 09, 2020 12:44 pm    Post subject: Reply with quote

Geez Zeke,
Sorry brain fart. Yes, on the fuel pump. I bought a pump that was missing the arm, or so I thought. It had been broken off right at the mounting bolt/screw,
such that it looked like a MWO. There are a couple of small parts that go along with it that I found. Now just need an arm. Easily made or bought.

But that should fill your bowl before starting.
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Brian
1950 M38
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