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Mod | | | Forums66 Topics128,041 Posts1,055,481 Members48,424 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Oct 2006 Posts: 126 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2006 Posts: 126 | I cut the line to the oil pressure sensor, not thinking that it would leak...
I want to add a new (modern) oil pressure sensor to my 235 engine block.
What options do I have? | | | | | Joined: Jun 2012 Posts: 1,747 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 1,747 | One option is to add a compression "T". That way you can use the old gauge and a new one if you like. Same fittings as the "new" plastic line would use. Check with your local FLAPS.
The other option would be a compression union to mate the new gauge to the old line. Only one gauge that way. I hope that is helpful. FYI: that little tiny oil line will let a LOT of oil out real fast so make sure the connections don't leak.
Steve H
| | | | | Joined: Apr 2013 Posts: 165 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2013 Posts: 165 | I have what I think Steve is describing. An oil unit out on the block as well as inside. It is screwed right into a brass T.
Good Luck
36 Chevy 1.5 ton - rusting away
52 Chevy 3100 - in progress
72 Chevy K20 - DD
PANTS UP DON'T LOOT! PANTS UP DON'T LOOT!
NEVER watch another man eat a banana.
| | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | If you mean add, you need the "T". If you mean replace with a new modern one, and you don't care if it fits into gauge cluster, get an electrical set. Gauge and sender and wire. Install sender in old port area and Install gauge in some neat place. No leaky.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
| | | | | Joined: Oct 2006 Posts: 126 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2006 Posts: 126 | Can you show me a pic of this "T"? | | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | A "T" is a fitting for plumbing. Shape of a "T", three ports for attaching three tubes/pipes, same as PVC fitting only brass and small. Threaded for what ever you are attaching. Flare, compression, pipe, etc. There are elbows (els), couplings, Tee's... for all plumbing types. See the internet for pics.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
| | | | | Joined: Apr 2013 Posts: 165 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2013 Posts: 165 | Sorry guys I do not have a flicker account so no photos at this time. Steve's got it though. Just screw the manual gauge direct into the end of the T in his photo so you can read pressure outside the cab. Run the other line into the cab.
Good luck
36 Chevy 1.5 ton - rusting away
52 Chevy 3100 - in progress
72 Chevy K20 - DD
PANTS UP DON'T LOOT! PANTS UP DON'T LOOT!
NEVER watch another man eat a banana.
| | | | | Joined: Oct 2006 Posts: 126 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2006 Posts: 126 | Stupid question, would a oil pressure switch with 3/8 in. x 18 NPT thread size work on my 1954 235 straight 6? | | | | | Joined: Apr 2013 Posts: 165 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2013 Posts: 165 |
36 Chevy 1.5 ton - rusting away
52 Chevy 3100 - in progress
72 Chevy K20 - DD
PANTS UP DON'T LOOT! PANTS UP DON'T LOOT!
NEVER watch another man eat a banana.
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