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06-25-2019, 12:01 PM
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#1 |
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Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Stuck oil pressure gauge
My gauge is just shy of 1/4 up from the L with the engine running or not. Is there any fix here or do I need to swap it for a working one?
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68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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06-25-2019, 03:35 PM
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#2 |
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Who Changed This?
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,676
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Re: Stuck oil pressure gauge
Could be a clogged line, or the gauge. You can take the line off the block and put air pressure to it to see if the gauge moves.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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06-25-2019, 05:00 PM
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#3 |
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Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Re: Stuck oil pressure gauge
The line was checked with brake clean prior to install. Stuck gauge is my bet. Is there a way to free it up if it won’t zero?
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68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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06-25-2019, 05:41 PM
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#4 |
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Account Suspended
 Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: Stuck oil pressure gauge
The gauge has a rack and pinion gear probably needs cleaning. Take it out, clean it and test with air pressure.
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06-25-2019, 07:13 PM
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#5 | |
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Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Re: Stuck oil pressure gauge
Quote:
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68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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06-25-2019, 08:40 PM
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#6 |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,676
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Re: Stuck oil pressure gauge
I'd be interested in seeing an oil pressure gauge with a rack and pinion in it. My money is on a Bourdon tube. You got another stumper for me, Randy!? After that purple starter solenoid wire running to the front of the block, down and then back to the starter, I'm starting to doubt my sanity!
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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06-25-2019, 09:21 PM
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#7 |
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Account Suspended
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: Stuck oil pressure gauge
Of course there is a bourdon tube, it acts on the rack which acts on the pinion connected to the needle. As pressure increases in the tube it moves the rack and turns the pinion on the needle.
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06-26-2019, 12:47 AM
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#8 |
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Senior Member
Join Date: Feb 2014
Location: Erie Colorado
Posts: 1,022
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Re: Stuck oil pressure gauge
As Randy mentioned the gauge most likely needs cleaned and lubed. Most off them have slight rust on the back components. I oil these three hinge points and delicately work the gauge back and forth. Should loosen up.
__________________
1971 LSX "Bonnie" build thread http://67-72chevytrucks.com/vboard/s....php?p=8026381 paypal is curtbarton1971@yahoo.com |
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06-26-2019, 05:50 AM
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#9 | |
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Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Re: Stuck oil pressure gauge
Quote:
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68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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06-29-2019, 10:15 AM
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#10 |
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Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Re: Stuck oil pressure gauge
Got it working, thanks for the help!
__________________
68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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