Joined: Mar 08, 2013 Posts: 20 Location: Edinburgh/Scotland
Posted: Sat Mar 09, 2013 1:58 am Post subject: TECHNICAL
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.
Joined: Mar 13, 2006 Posts: 1079 Location: Richburg, SC
Posted: Sat Mar 09, 2013 7:43 am Post subject:
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)
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.
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