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05-08-2021, 10:32 AM | #21 |
Senior Member
Join Date: Mar 2011
Location: New Brunswick, Canada
Posts: 1,013
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Re: oil leak rear main
and I'll throw this out there.......it could be an issue with the cam gasket not sealing properly!
Ask me how I know! But.......I would get a new tube first, set the main and see what happens. |
05-08-2021, 11:18 AM | #22 |
Senior Member
Join Date: May 2016
Location: Scottsdale, Arizona
Posts: 611
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Re: oil leak rear main
Good Morning all...My bad on the main bearing cap measurement...thank God others are smarter than I am...I apologize! Ernie in Arizona
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05-09-2021, 02:43 AM | #23 |
Senior Member
Join Date: Dec 2013
Location: The Netherlands
Posts: 387
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Re: oil leak rear main
Eric, do check the axial clearance and the cleanliness of the oil return channel. Set the end play to max. 0,05 mm. otherwise your bearing ‘sideleaks’ will overflow the oil return capacity. Remember natural pressure being built up in the bearing sue to hydrodynamic forces.
Don’t bet on the oil return pipe alone ! I have seen Model A’s running without it and not leaking at all. Remember the oil pressure equals the air pressure above it, so the pipe really has no function. Unless of course you would have extreme pressure fluctuations, which is probably not the case.
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You don’t own a Model A ... it owns you ! |
05-09-2021, 10:47 AM | #24 |
Senior Member
Join Date: Apr 2019
Location: Mt. Pleasant, SC
Posts: 601
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Re: oil leak rear main
And....when screwing a drain pipe into the rear main bearing cap, do not screw it in too far - it will stick up in the drain channel and prevent oil from draining through the tube....making the leak worse.
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05-09-2021, 10:43 PM | #25 | |
Senior Member
Join Date: May 2010
Location: South California
Posts: 6,188
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Re: oil leak rear main
Quote:
Make certain that you install this IMPORTANT gasket. Good luck !! |
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05-11-2021, 01:20 PM | #26 |
Junior Member
Join Date: Jun 2020
Location: Pontivy, Brittany, France
Posts: 13
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Re: oil leak rear main
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Thank you very much everyone ! I'll keep you informed. |
05-11-2021, 08:20 PM | #27 |
Senior Member
Join Date: May 2010
Posts: 2,579
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Re: oil leak rear main
Is the shipping $50 from England?
Here is a company in England that has that part. https://www.oneillvintageford.co.uk/...rch&PR=-1&TB=A https://www.oneillvintageford.co.uk/...rch&PR=-1&TB=A Germany must have parts dealers too. Germany made Model A based cars for many years after 1931. Remember that the drain pipe was made in 5/16ths and 3/8ths sizes. WOULD BE TOO BAD TO ORDER WRONG SIZE DRAIN TUBE. Another in England: https://www.themodelaford.co.uk/ Last edited by Benson; 05-11-2021 at 08:39 PM. |
04-27-2022, 07:14 AM | #28 |
Junior Member
Join Date: Jun 2020
Location: Pontivy, Brittany, France
Posts: 13
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Re: oil leak rear main
Hello !
News from France, i fixed it like you said. I've change the tube for a new one, checked the clearence with plasticage, took off a shim (I had two shims on each side, I took off one), and everything's perfect now, no more leak ! Thanks. |
04-27-2022, 07:56 AM | #29 | |
Senior Member
Join Date: Apr 2019
Location: Mt. Pleasant, SC
Posts: 601
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Re: oil leak rear main
Quote:
Jim |
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