eddie
Junior Member
Posts: 1 
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Post by eddie on Sept 13, 2017 11:48:56 GMT -5
Working on a 59 Willys wagon need to know which is the vacuum ports and which of the fuel ports on a dual action fuel pump
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Post by Scoutpilot on Sept 13, 2017 14:11:19 GMT -5
Not knowing which pump you are referring to, generally speaking, the top ports are for fuel (one may even be marked “IN”) and the bottom ports are vacuum with the port closest to the block being the “IN” port.
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Post by gwshope on Aug 25, 2023 14:45:38 GMT -5
I have a 1950 willys m38--I sent the fuel pump to kaiser willys to be rebuilt---took 8 weeks---I put the pump back on the jeep and it won't crank on its own---I can start it using starter fluid and it runs and drives good---but when I cut it off it will not start again without starter fluid----please help
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Post by Scoutpilot on Aug 25, 2023 14:48:39 GMT -5
Depending on the configuration and condition of the motor and its ignition system warm restarts may require some choke and slow opening of the throttle during cranking.
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Post by pete shope on Aug 27, 2023 12:34:25 GMT -5
the jeep was cranking and running good ---i had the fuel pump rebuilt because i was trying to redo everything a little at a time i am not a mechanic but a wanna be diy---the fuel pump came with a thin gasket---could that have anything to do with my problem?  |
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Post by Scoutpilot on Aug 27, 2023 15:12:56 GMT -5
Is this a single-action or dual-action pump?
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Post by rickg on Aug 27, 2023 20:06:48 GMT -5
Hi-ya Pete, your orig post indicates you are working on a M38. We do not know if it is stock or not but the correct pump is this AC fuel/vac pump. It is designed to be used with a full 1/2" thick spacer and 2 gaskets. Attachments:
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Post by gwshope on Aug 28, 2023 10:51:49 GMT -5
thanks for the reply---the fuel pump is a duel action but I don't used the vacuum part I have them plugged off because I am planning on putting 24 volt electric wipers on---could not having the 1/2 inch spacer on cause my problem----thanks
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