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oil pressure sending unit |
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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i am getting 72 ohms at idle and it goes down to 60 ohms at about 2500 rpm. this is with the wire disconnected from the sending unit. |
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6PakBee
Supporter of TheAMCForum Charter Member Joined: Jul/01/2007 Location: North Dakota Status: Offline Points: 5454 |
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Hmm. Two thoughts. You have 60 psig at idle? Are you sure the mechanical gauge is accurate? Secondly, I would order a Mopar sender for a '70 Charger and try it. The gauge range is the same and the instrument voltage regulator should be the same voltage, so..... |
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Roger Gazur
1969 'B' Scheme SC/Rambler 1970 RWB 4-spd Machine 1970 Sonic Silver auto AMX All project cars. Forum Cockroach |
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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Yes the gauge is accurate, it is reading the same as when it was on the dyno and when it was on the dyno we used a different mechanical gauge. once the engine warms up, it goes down a little bit.. do you know if you can still buy a mopar sending unit from chrysler for the 70 charger?
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6PakBee
Supporter of TheAMCForum Charter Member Joined: Jul/01/2007 Location: North Dakota Status: Offline Points: 5454 |
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The gauge sending units are readily available from RockAuto.
https://www.rockauto.com/en/moreinfo.php?pk=44334&cc=1496003 The oil pressure still puzzles me. What you are saying is that it's relatively constant from idle to higher engine speed, both hot and cold? This flies in the face of everything I've ever seen. |
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Roger Gazur
1969 'B' Scheme SC/Rambler 1970 RWB 4-spd Machine 1970 Sonic Silver auto AMX All project cars. Forum Cockroach |
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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when its cold it will be right at 60 at idle. when it warms up it comes down to about 30 at idle. when the engine is revved up, it goes up to about 80 when cold and about 60 when warm.
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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Thanks 6PakBee, i ordered that sending unit.
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Scene One
AMC Addicted Joined: Jan/13/2014 Location: Friedens Pa. Status: Offline Points: 699 |
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mstrcrftr, I am having the same problem with oil pressure gauge. I also tee'd and added a mechanical gauge and glad I did but would like to get my other gauge working. What was your resolve?
Thanks in advance B.P. |
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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actually it was using the correct ohm sending unit. i tried all of the ones you can buy in an autoparts store and none worked. Then Roger helped me out with a part number of a unit that will work correctly. "A BIG THANKS AGAIN TO ROGER". Also known on the forum as 6PakBee.
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Scene One
AMC Addicted Joined: Jan/13/2014 Location: Friedens Pa. Status: Offline Points: 699 |
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Thanks I will give it a try and see..
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