TECHNICAL

Discussion topics on Willys Overland M series vehicles
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oddball
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TECHNICAL

Post by oddball »

my m38a1, has a temp gauge problem.
after a while driving it moves up to 260 on gauge ,
i have cleaned the fittings at rear and the engine temp switch twice its 24volt and cut back the douglas connector thinking its a break in wire but problem stil there.

there is no over heating

its just a pest when out driving, any ideas on what to do.

thanks

oddball
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wilfreeman
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Post by wilfreeman »

M series gauges are notoriously unreliable. You can start with this troubleshooting guide from the downloads section http://willysmjeeps.com/downloads/instruments.pdf . There is a lot of info available in the downloads section.
Matt
1953 M38a1
1964 USMC M38a1
'51 USMC M100 trailer, '54 M100 trailer, '90 M101a1 trailer
Http://wilfreeman.wordpress.com (M38a1 build blog)
http://m38a1usmc.wordpress.com (USMC M38a1 rebuild blog)
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oddball
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Location: Edinburgh/Scotland

Post by oddball »

thanks for that.

i just cant get my head round it.

do you think i should look out for a new gauge or just leave it.
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wesk
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Post by wesk »

You should first troubleshoot the wiring, gauge and sender in accordance with the TB suggested above. If a component is not up to mustard the tests will reveal which component/s it/they are. Your symptom speaks strongly of a short in the wire between the gauge and the sender.


http://willysmjeeps.com/downloads/instruments.pdf
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
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