My C is blowing oil droplets out the exhaust. I think it's a leaky valve guide, but just wanted to check with you all before pulling the head.
Corlis West
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Blowing Oil
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cwest03
- 10+ Years
- Posts: 64
- Joined: Mon Apr 12, 2010 1:54 pm
- Zip Code: 55616
- Tractors Owned: 1949 IH C
1956 IH 200
1961 Cub Lo-boy - Location: Two Harbors, MN
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Eugene
- Team Cub Mentor
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- Zip Code: 65051
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- Location: Mo. Linn
Re: Blowing Oil
Oil sucked in past the valve guide would be minimal. Burned during the combustion cycle.
More than likely oil is bypassing the piston rings.
More than likely oil is bypassing the piston rings.
I have an excuse. CRS.
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John *.?-!.* cub owner
- Cub Pro
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- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
Re: Blowing Oil
Are you sure it is oil drops and not water carrying carbon from condensation in the exhaust? That is a very common problem with vertical exhausts.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
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cwest03
- 10+ Years
- Posts: 64
- Joined: Mon Apr 12, 2010 1:54 pm
- Zip Code: 55616
- Tractors Owned: 1949 IH C
1956 IH 200
1961 Cub Lo-boy - Location: Two Harbors, MN
Re: Blowing Oil
This really only happens at higher rpms. It makes a little smoke, but nothing what I would expect if it were coming from the piston. This tractor had frozen exhaust valive when I bought it. I'm not sure I did the best job when I freed it up. I my have scared the valve too.
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cwest03
- 10+ Years
- Posts: 64
- Joined: Mon Apr 12, 2010 1:54 pm
- Zip Code: 55616
- Tractors Owned: 1949 IH C
1956 IH 200
1961 Cub Lo-boy - Location: Two Harbors, MN
Re: Blowing Oil
What do you think a compression test would tell me? I haven't done anything yet, too cold 
!
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Eugene
- Team Cub Mentor
- Posts: 20377
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: Blowing Oil
Compression tests will tell you the overall condition of the engine.
Dry test - leaking valves. Wet test - compression leaks - rings. It's possible that if you have leaking valves and piston rings - the test will disclose both areas.
Dry test - leaking valves. Wet test - compression leaks - rings. It's possible that if you have leaking valves and piston rings - the test will disclose both areas.
I have an excuse. CRS.
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cwest03
- 10+ Years
- Posts: 64
- Joined: Mon Apr 12, 2010 1:54 pm
- Zip Code: 55616
- Tractors Owned: 1949 IH C
1956 IH 200
1961 Cub Lo-boy - Location: Two Harbors, MN
Re: Blowing Oil
Could having too much oil in the crankcase cause this?
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