zman06 Posted May 17, 2016 Share Posted May 17, 2016 small steady stream of oil comming out of blowby tube when running under load. when trk is running at fast idle in neut. it does not do it. in spected turbo and saw where impeller was rubbing on housing and thought it was pressurizing the crankcase by blowing by seals into oil return line. replaced turbo which was bad. after trk reached opp. temp and driving under load it still does it. any ideas would be great tks Quote Link to comment https://www.bigmacktrucks.com/topic/45250-2011-mp7/ Share on other sites More sharing options...
steeler Posted June 4, 2016 Share Posted June 4, 2016 (edited) I know this is old, but check your air compressor. Remove intake pipe from compressor and blow shop air in it with engine oil dipstick removed. See if you are getting air into crankcase. I've seen more than a few compressors with a busted piston do this. ETA....Didn't notice this is an mp engine. Might not apply in your case if the compressor intake is plumbed into air cleaner pipe, and not boosted air. Edited June 4, 2016 by steeler Quote Link to comment https://www.bigmacktrucks.com/topic/45250-2011-mp7/#findComment-335427 Share on other sites More sharing options...
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