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| | | | Joined: Nov 2004 Posts: 266 Custom Title | | Custom Title Joined: Nov 2004 Posts: 266 | What thread is on the back of the factory AD oil pressure gauge?? I have a whole mess of fittings here and none of them fit. How does this work?
49 Chevy 3600
65 Chevy K10
48 International KB-1 Service Truck
55 Willys CJ5 - Chevy 331 powered
26 Model T Roadster Rat Rod
70 Tucker Sno-Cat 442-A
96 Dodge 3500 Cummins dually flatbed x-cab 4x4
06 Jeep Wrangler LJ rock crawler
If you can't fix it with a hammer, it's an electrical problem
| | | | | Joined: Dec 2005 Posts: 2,557 'Bolter | | 'Bolter Joined: Dec 2005 Posts: 2,557 | you need the double compression fitting.It fits the oil gauge and you need one at the engine block.Here is the link to the part you need. double compression fitting Tim
1951 3100 Chevrolet1951 Chevrolet Suburban CarryallImage"A house is built with boards and beams. A home is built with love and dreams." "Look deep before you leap !!!" / "Everything is Everything" "If I say a mouse can pull a house, hitch him up"
| | | | | Joined: Nov 2005 Posts: 238 Shop Shark | | Shop Shark Joined: Nov 2005 Posts: 238 | What thread is on the back of the factory AD oil pressure gauge?? I have a whole mess of fittings here and none of them fit. How does this work? Had a whole bunch of fittings on mine when I bought it too. The oil guage thread size is 1/16" NPS. It has 27 threads per inch, the same as an NPT thread, but the oil guage boss is a straight rather than taper thread. Stuart.
Last edited by Stuart_Giles; 04/18/2012 1:51 PM.
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | | | | | | Joined: Nov 2005 Posts: 238 Shop Shark | | Shop Shark Joined: Nov 2005 Posts: 238 | Interesting that the weblinks show a 5/16" by 24 thread. I used an optical comparator on my guage thread, it definitely pitched at 27 TPI. 1/16 NPS is near 5/16" OD and a 5/16 UNF 24 TPI nut probably wouldn't bind over such a short distance of thread whichever is actually on the oil gauge. | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | | | | | | Joined: Dec 2005 Posts: 2,557 'Bolter | | 'Bolter Joined: Dec 2005 Posts: 2,557 | I just put my gauge on the threads of an original double compression fitting and it is #24 thread.
Tim
1951 3100 Chevrolet1951 Chevrolet Suburban CarryallImage"A house is built with boards and beams. A home is built with love and dreams." "Look deep before you leap !!!" / "Everything is Everything" "If I say a mouse can pull a house, hitch him up"
| | | | | Joined: Nov 2004 Posts: 266 Custom Title | | Custom Title Joined: Nov 2004 Posts: 266 | So all i need is that nut from Weatherhead? How does that grab the copper tubing?
49 Chevy 3600
65 Chevy K10
48 International KB-1 Service Truck
55 Willys CJ5 - Chevy 331 powered
26 Model T Roadster Rat Rod
70 Tucker Sno-Cat 442-A
96 Dodge 3500 Cummins dually flatbed x-cab 4x4
06 Jeep Wrangler LJ rock crawler
If you can't fix it with a hammer, it's an electrical problem
| | | | | Joined: May 2005 Posts: 487 'Bolter | | 'Bolter Joined: May 2005 Posts: 487 | The nose of the fitting crushes around the tubing as it's tightened.
regards,
Leon | | | | | Joined: Dec 2005 Posts: 2,557 'Bolter | | 'Bolter Joined: Dec 2005 Posts: 2,557 | I just screw the fitting into the oil gauge by hand,then slip the oil line tube into it until it stops.Then I tighten the compression nut making sure the oil line does not move while tightening.
Tim
1951 3100 Chevrolet1951 Chevrolet Suburban CarryallImage"A house is built with boards and beams. A home is built with love and dreams." "Look deep before you leap !!!" / "Everything is Everything" "If I say a mouse can pull a house, hitch him up"
| | | | | Joined: Nov 2004 Posts: 266 Custom Title | | Custom Title Joined: Nov 2004 Posts: 266 | Oh, ok. That's easy enough!
49 Chevy 3600
65 Chevy K10
48 International KB-1 Service Truck
55 Willys CJ5 - Chevy 331 powered
26 Model T Roadster Rat Rod
70 Tucker Sno-Cat 442-A
96 Dodge 3500 Cummins dually flatbed x-cab 4x4
06 Jeep Wrangler LJ rock crawler
If you can't fix it with a hammer, it's an electrical problem
| | | | | Joined: Oct 2010 Posts: 171 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2010 Posts: 171 | .............nut making sure the oil line does not move while tightening. Thought mine didn't move, guess I was run. Knew I was wrong when after the engine was running I noticed a 1/2 cup of oil on the ground under the runningboard and in the cab - what a mess! Removed the Guage and re inserted the tube, made a mark on the tube this time and kept a close eye on it while I tightened the nut...no problems now
Last edited by 54barnfind; 04/22/2012 2:26 AM.
....David
| | | | | Joined: Nov 2004 Posts: 266 Custom Title | | Custom Title Joined: Nov 2004 Posts: 266 | Maybe I'll pick up 2 nuts... lol
49 Chevy 3600
65 Chevy K10
48 International KB-1 Service Truck
55 Willys CJ5 - Chevy 331 powered
26 Model T Roadster Rat Rod
70 Tucker Sno-Cat 442-A
96 Dodge 3500 Cummins dually flatbed x-cab 4x4
06 Jeep Wrangler LJ rock crawler
If you can't fix it with a hammer, it's an electrical problem
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