Blowing Oil

Farmall C, Super C Tractors, 200 & 230 1948-1958
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cwest03
10+ Years
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

Blowing Oil

Postby cwest03 » Wed Nov 30, 2016 3:40 pm

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

Eugene
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Zip Code: 65051
Circle of Safety: Y
Location: Mo. Linn

Re: Blowing Oil

Postby Eugene » Thu Dec 01, 2016 2:03 pm

Oil sucked in past the valve guide would be minimal. Burned during the combustion cycle.

More than likely oil is bypassing the piston rings.
I have an excuse. CRS.

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John *.?-!.* cub owner
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Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
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Re: Blowing Oil

Postby John *.?-!.* cub owner » Thu Dec 01, 2016 9:05 pm

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!!!

cwest03
10+ Years
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

Postby cwest03 » Sun Dec 04, 2016 7:19 am

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.

cwest03
10+ Years
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

Postby cwest03 » Sun Dec 18, 2016 7:35 pm

What do you think a compression test would tell me? I haven't done anything yet, too cold :mrgreen: !

Eugene
Team Cub Mentor
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Posts: 19612
Joined: Fri Jul 02, 2004 9:52 pm
Zip Code: 65051
Circle of Safety: Y
Location: Mo. Linn

Re: Blowing Oil

Postby Eugene » Mon Dec 19, 2016 6:43 am

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.
I have an excuse. CRS.

cwest03
10+ Years
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

Postby cwest03 » Wed Jan 18, 2017 1:57 pm

Could having too much oil in the crankcase cause this?


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