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Oil pressure [message #321586] Thu, 03 August 2017 14:40 Go to next message
Justin Brady is currently offline  Justin Brady   United States
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Registered: April 2015
Location: Bell Buckle, TN
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Senior Member
I noticed it a few times on our trip and again yesterday running to the store soo I figured I'll ask!

My oil pressure usually holds steady a little above the 1/2 way mark on the OEM gauge. A few times (as mentioned above) it goes up to about the 3/4 mark or a little below. Usually it's a big higher when cold and then drops down once it heats up, but yesterday it didn't drop back down.

Haven't checked it again.

Any ideas?
Sending unit is still stock and could use replacement I'm sure, but it seems an odd failure to read high?



Justin Brady http://www.thegmcrv.com/ 1976 Palm Beach 455
Re: Oil pressure [message #321590 is a reply to message #321586] Thu, 03 August 2017 16:08 Go to previous messageGo to next message
JohnL455 is currently offline  JohnL455   United States
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Registered: October 2006
Location: Woodstock, IL
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Senior Member
I would start by pulling the connector on the sender and cleaning the connection with contact cleaner. They oxidize as not a sealed connector and give eratic readings.

John Lebetski
Woodstock, IL
77 Eleganza II
Re: [GMCnet] Oil pressure [message #321593 is a reply to message #321586] Thu, 03 August 2017 16:40 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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Senior Member
Justin,

I would suggest you get an oil pressure gage (no sender type) and "T" it in under the OEM fitting to calibrate the OEM gage.

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Justin Brady
Sent: Friday, August 4, 2017 5:41 AM
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Oil pressure

I noticed it a few times on our trip and again yesterday running to the store soo I figured I'll ask!

My oil pressure usually holds steady a little above the 1/2 way mark on the OEM gauge. A few times (as mentioned above) it goes up
to about the 3/4
mark or a little below. Usually it's a big higher when cold and then drops down once it heats up, but yesterday it didn't drop back
down.

Haven't checked it again.

Any ideas?
Sending unit is still stock and could use replacement I'm sure, but it seems an odd failure to read high?


--
Justin Brady
http://www.thegmcrv.com/
1976 Palm Beach 455

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: Oil pressure [message #321626 is a reply to message #321586] Fri, 04 August 2017 14:56 Go to previous message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
My 23' was on its 4th sender when I soldnit. The OEM lasted 38 years, the Heathyen Chinee ones go maybe a year... but lifetime warranty.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
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