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Old 09-21-2019, 11:06 AM   #1
Russ/40
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Default Rear main leak to clutch

I'm curious, when a rear main leaks substantially, does it foul the clutch? Or, does the leak somehow bypass the clutch. Also, is the long style clutch on a trimmed A flywheel more suseptable to oil fouling?
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Old 09-21-2019, 11:29 AM   #2
Purdy Swoft
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Default Re: Rear main leak to clutch

I've had model A's most of my life and I have never had oil from a leaking rear main bearing get in the clutch . I suppose if the leak was severe enough it could happen but the leak would probably be too bad for regular use .
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Old 09-21-2019, 11:40 AM   #3
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Default Re: Rear main leak to clutch

When my rear main was leaking the flywheel seemed to 'fling' the oil out where it would collect on the inside of the bell housing then run out the bottom. never got to the clutch.
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Old 09-21-2019, 12:43 PM   #4
Patrick L.
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Default Re: Rear main leak to clutch

Its pretty hard for the oil to get tangled up in the clutch.
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Old 09-21-2019, 04:53 PM   #5
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Default Re: Rear main leak to clutch

A combination of gravity and centrifugal forces prevent oil getting to the clutch. I had an engine once that leaked oil out the back so badly that when I stopped, oil would flood out onto the road and often enough, leave a puddle a foot accross. While I was driving, the spinning flywheen kept the oil flung out against the inside of the bell housing. When the motor was turned off, gravity did its thing and the oil found its way out. NONE got on the clutch!
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Old 09-21-2019, 05:00 PM   #6
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Default Re: Rear main leak to clutch

That's the way that I believe it works and it leaks after the engine is shut down .
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Old 09-21-2019, 05:15 PM   #7
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Default Re: Rear main leak to clutch

Hallo Russ, on my A, the clutch slipped because a mixture of grease and oil touched the friction lining. Remedy brought the repeated spraying with a big lot of brake cleaner.
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Old 09-21-2019, 11:35 PM   #8
Russ/40
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Default Re: Rear main leak to clutch

What makes me ask the question, is if I let my car sit for a few weeks, The clutch has no chatter and is smooth. If I really work the car like long drives with lots of hills, the clutch begins to chatter. The longer I drive it, the worse the chatter gets.
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Old 09-22-2019, 03:12 AM   #9
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Default Re: Rear main leak to clutch

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Originally Posted by Russ/40 View Post
What makes me ask the question, is if I let my car sit for a few weeks, The clutch has no chatter and is smooth. If I really work the car like long drives with lots of hills, the clutch begins to chatter. The longer I drive it, the worse the chatter gets.
You could remove the inspection plate and take a look. You might also check that the pressure plate fingers all make contact with the release bearing at the same exact time.
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Old 09-22-2019, 11:04 AM   #10
Russ/40
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Default Re: Rear main leak to clutch

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You could remove the inspection plate and take a look. You might also check that the pressure plate fingers all make contact with the release bearing at the same exact time.
Your right, I should do that. I just hate pulling the floorboards. The floormat gets buggered up a bit more every time. I'm pretty confident the clutch fingers are ok.
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Old 09-22-2019, 12:36 PM   #11
Patrick L.
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Default Re: Rear main leak to clutch

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Your right, I should do that. I just hate pulling the floorboards. The floormat gets buggered up a bit more every time. I'm pretty confident the clutch fingers are ok.



I can relate to the floor mat thing. Mine is now one of those 2 piece units.

But generally a chatter is from a warped flywheel, pressure plate fingers too far out of adjustment or clutch housing out of alignment. Of those, the finger check the easiest with a long feeler strip.

I think its seldom that a chatter is caused by a soaked disk.
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Old 09-22-2019, 02:48 PM   #12
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Default Re: Rear main leak to clutch

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Originally Posted by Patrick L. View Post
I can relate to the floor mat thing. Mine is now one of those 2 piece units.

But generally a chatter is from a warped flywheel, pressure plate fingers too far out of adjustment or clutch housing out of alignment. Of those, the finger check the easiest with a long feeler strip.

I think its seldom that a chatter is caused by a soaked disk.
I Agree, Mr Patrick, and I also have never seen oil on Flywheel, or pressure Plate.

The ones I have, ( Not Model A ) , always slipped, rather then chatter.

Herm.
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Old 09-22-2019, 02:59 PM   #13
Kohnke Rebabbitting
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Default Re: Rear main leak to clutch

Quote:
Originally Posted by Patrick L. View Post
I can relate to the floor mat thing. Mine is now one of those 2 piece units.

But generally a chatter is from a warped flywheel, pressure plate fingers too far out of adjustment or clutch housing out of alignment. Of those, the finger check the easiest with a long feeler strip.

I think its seldom that a chatter is caused by a soaked disk.
I Agree, Mr Patrick, and I also have never seen oil on Flywheel, or pressure Plate.

The ones I have, ( Not Model A ) , always slipped, rather then chatter.

Herm.
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