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Oil pressure sender test?
Posted: Wed Mar 18, 2009 5:10 pm
by Wayne64
Is there an OHMs test for the sender? Or to test the gauge a resistor value to use instead of the sender to check the PSI reading? I guess it was easy to follow the Military way and just keep trying parts when you had lots of spares. Oh, the truck is a M37B1 with the 0-60 gauge and still 24v.
Posted: Thu Mar 19, 2009 3:29 am
by Carter
http://www.cj3a.info/sibling/milgauge/milgage.htm
(2) Oil pressure gage sending unit.
(a) The ohmmeter should indicate 0 to 1 ohm reading with engine stopped, if ohmmeter does not indicate this reading or excess 1 ohm, replace sending unit.
(b) Start engine, ohmmeter should indicate a higher reading, if a higher reading is not indicated, replace sending unit.
Posted: Thu Mar 19, 2009 7:53 am
by Wayne64
Carter, That link was perfect. It is both printed and bookmarked. Thank you
Posted: Thu Mar 19, 2009 1:30 pm
by Carter
Glad to be able to help Wayne, it's a good site for gauge and sender info for these trucks.
Posted: Sat Mar 21, 2009 11:34 am
by gwalker
Also note the spec. stamped on the sender, there are 2 diff oil gauges for mseries one 0-60 other 0-120 the senders for these look alike but are calibrated differently.