Go BottomOil overflow from tube and Smoke
 | primalman
Join Date: Feb 2017 Posts: 6 East Texas 
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2017-02-18 196302
Gents,
I have a 2001 4300. There is an oil overflow tube on the right (as you are sitting) and it spews oil periodically, in addition to smoke. Happens frequently and is concerning me. Any scoop on this problem? Any help appreciated.
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 | taogden
Join Date: Sep 2012 Posts: 81 United States
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2017-02-18 196303
Sounds like blow-by, pull the oil filler cap and see if you feel air coming out ....
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| primalman
Join Date: Feb 2017 Posts: 6 East Texas
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2017-02-18 196305
What will this tell me, and is it a bad sign of massive overhaul?
....
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 | greyhorse
Join Date: Jun 2013 Posts: 65
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2017-04-25 196585
Blowby can be caused couple by of things.. One can be you have lost compression in one or more of your cylinders due to worn rings and enlarged cylinder diameter allowing explosion exhaust to be pushed into the oil crankcase causing the pressure you see ....
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