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Reload this Page KT-17 major oil leak
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  #1  
Old 05-26-2015, 08:42 AM
RedCC RedCC is offline
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Default KT-17 major oil leak
I had oil EVERYWHERE in the 782 yesterday. I started the tractor and let it idle in the yard for a few minutes while I loaded some wood in the trailer. After puttering over to the wood pile I drove back past the spot where it warmed up and saw oil on the grass. Lift the hood and wow! Oil blowing out both engine side covers. Engine was running fine when I shut it down and it took 32 oz (48 oz capacity) of oil to get back on the dip stick. After removing the side covers it sure looks to me like a rear seal. The engine is prepped to come out of the tractor today. The drive shaft didn't appear to have any radial motion so I don't think it's the bearing. Boy am I glad I drove back past that spot yesterday, as I had a long list of chores for the 782 that would probably not have ended well. Anybody had any experience with such a significant leak like this?
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Old 05-26-2015, 08:45 AM
R Bedell R Bedell is offline
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As a suggestion, while you have the engine out, look closely at the "breather assembly". It has been updated and I would suggest you do so.
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Old 05-26-2015, 09:38 AM
RedCC RedCC is offline
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Quote:
Originally Posted by R Bedell View Post
As a suggestion, while you have the engine out, look closely at the "breather assembly". It has been updated and I would suggest you do so.
10-4. Prior owner put a short block in probably 10 years after the original. The breather assy is a rubber flap and a very coarse filter/screen if my memory serves me well. Are you referring to possible crankcase pressure causing a seal failure? Pictures coming after work. BTW I checked compression a few weeks back while dealing with a fuel delivery issue and fuel pump replacement. 120 psi and 125 psi. Thank you!
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Old 05-26-2015, 09:52 AM
R Bedell R Bedell is offline
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Quote:
Are you referring to possible crankcase pressure causing a seal failure?
YES...........
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Old 05-27-2015, 01:33 PM
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Well the oil leak didn't start on Monday as I had thought. The rear tin was packed with crud. Got the engine out and today will pull the flywheel. On the last photo there is a plug in the front of the engine just below the oil filler neck that looks to have a minor leak as well. Why is that there and how do I pull it and re-seal?010.jpg

013.jpg
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Old 05-27-2015, 02:10 PM
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Sam Mac Sam Mac is offline
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You may want to download the manual for the engine, here is the link.
http://www.onlycubcadets.net/forum/s...ead.php?t=4649
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