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Old 12-06-2017, 10:52 PM   #1
oldforder
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Default oil in valve chamber

So I have recently bought a 29 A, and have been checking it out some. It starts and runs and drives really good. I dropped the pan to check for sludge, as I had no idea of the oil or previous care it had. There was quite a bit, probably 1/4 + inch of sludge in the bottom of the pan. Cleaned that up, and figured that all was good. Then I read something here that reminded me that there was a probably sludge in the valve chamber also. So, I pulled the cover off the side, and although not as bad as the pan, it was kinda sludgy. (if that is a word). Made sure all the holes to oil the mains were open, then was trying to figure how the oil gets up there. I pulled the plugs and had any wife turn the engine over with the starter while I watched. Oil comes out the passage into the area at the front of the motor near the cam gear, but I didn't see any oil coming into the rest if the valve chamber. How does it get oil there?? There was oil there when I took the cover off.
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Old 12-06-2017, 11:15 PM   #2
J Franklin
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Default Re: oil in valve chamber

The oil should fill the front and flow towards the back as the engine sits at a slant. Any overflow goes out the front onto the cam gear.
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Old 12-07-2017, 12:30 AM   #3
Chuck Sea/Tac
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Default Re: oil in valve chamber

Make sure the cam feed holes are clear as well
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Old 12-07-2017, 02:25 AM   #4
BILL WILLIAMSON
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Default Re: oil in valve chamber

Oldforder,
You probably know that everything is oiled by GRAVITY & SPLASH, except for the Rod Bearings that are oiled by their scoops. The scoops create TREMENDOUS oil pressure to the rod bearings.
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Old 12-07-2017, 04:33 AM   #5
Dodge
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Default Re: oil in valve chamber

Thanks for the scoop on that Bill....
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Old 12-07-2017, 11:45 AM   #6
BILL WILLIAMSON
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Default Re: oil in valve chamber

Quote:
Originally Posted by Dodge View Post
Thanks for the scoop on that Bill....
Think I'll have a SCOOP of Ice Cream, for Breakfast How long duz Vanilla Ice Cream last, in the freezer (Dog's SMILIN')
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Old 12-07-2017, 01:42 PM   #7
Will N
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Default Re: oil in valve chamber

That's why the dam at the front of the valve chamber (by the timing gear) is important. It allows the oil in the valve chamber to rise to the level of the dam before spilling over onto the timing gear. This allows the oil to fill the rear of the chamber. If the dam is damaged (which can happen if someone isn't careful when changing a timing gear, and tries prying it off, using the dam as a fulcrum) and the oil level can't rise high enough, you can starve the rear main of oil.
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