The rear main bearing has a threaded 1/2 in diameter hole where an oil return flow tube is screwed in. This tube channels oil back to the pan rather than allowing it to flow back into the flywheel, creating an oil leak. What is the thread type for this..seems very fin threaded, possibly size 32 threads?
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rear main bearing oil tube thread
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Vince’s site and the suppliers list the pipe as 3/8th....ck this link for more info
3~ Tudor's & 1~ Coupe
Henry Ford said,
"It's all nuts and bolts"
"Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible."
Mitch's Auto Service ctr
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It's 1/2" - 32 tpi.. for the V-8
You assumption on the first post is correct3~ Tudor's & 1~ Coupe
Henry Ford said,
"It's all nuts and bolts"
"Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible."
Mitch's Auto Service ctr
- Top
- Bottom
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by dmaxwebThe hole in the rear main bearing cap is 1/8" NPT but the the thread on the tubes sold by the vendors is 3/8-32. They sorta thread together. Is that correct?
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Channel: Model A Forum
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I have all of Les Andrews books. Question, is it possible to remove pan and the rear main cap for inspection...You do not have permission to view this gallery.
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Channel: Model A Forum
01-23-2020, 08:31 AM -
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AFTER PUTTING ABOUT 50 MILES ON MY 29 MODEL A . THE NEXT MORNING I NOTICED A A FAIRLEY LARGE OIL SPOT UNDER THE REAR MAIN . I AM PLANNING ON DROPING THE PAN SOON , ANY THOUGHTS TO WHAT I MIGHT FIND ARE APPRECIATED
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Channel: Model A Forum
08-05-2018, 03:56 PM -
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I’ve had my rear main bearing cap off for over a week and was expecting the oil in the back of the valve chamber to slowly ooze down the oil gallery and past the crankshaft and drip out. There’s still a bunch of oil in the valve chamber and I don’t see oil coming out around the crank. Would this mean the oil gallery is stopped up, or is it even supposed to work that way?
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Channel: Model A Forum
11-02-2021, 12:19 AM -
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by dmaxwebI've dropped the pan to check the bearings and replace the leaking gasket. I believe this is the first time the pan has been off since the previous owner had the motor rebuilt.
An extension has been added to the oil drain tube. The extension is crimped and it looks like there is a ball bearing loose in the tube behind the crimp. Any ideas what this is for?
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Channel: Model A Forum
06-16-2021, 03:32 PM -
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Channel: Model A Forum
02-19-2019, 09:54 PM -
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Channel: Model A Forum
05-31-2017, 07:50 AM -
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Channel: Model A Forum
11-13-2019, 09:34 AM -
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