ClaytonCchriS Posted January 13, 2015 Share Posted January 13, 2015 Hello, I'm new to the site & this is my first post. We've got a 2010 MP8 engine in our CXU613. We're getting a lot of oil going thru the separator and dumping on the ground. The separator is spinning and we have cleaned it. We've got no engine codes. Is there a specific # for crank-case pressure that we should be at or below? Any other input would help! Thanks! Quote Link to comment https://www.bigmacktrucks.com/topic/38400-2010-mp8-with-excessive-blow-by/ Share on other sites More sharing options...
thomastractorsvc Posted January 13, 2015 Share Posted January 13, 2015 check the vent and make sure not plugged and/or pull the oil filler cap off and see if there is presuure 1 Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/38400-2010-mp8-with-excessive-blow-by/#findComment-274151 Share on other sites More sharing options...
Mackpro Posted January 13, 2015 Share Posted January 13, 2015 We have had 2 MP's here blowing oil out the blow by tube. One was a MP7 and the other a MP8. We did the compression test and cylinder balance test with the laptop and all looked good. Replaced the complete crankcase spinner assembly ( not just the spinner kit) and this solved the problem in both trucks. Also the oil spray nozzle can fall out of the bottom half of the assembly and cause other issuses. Its only a few dollars more to get the complete assembly. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/38400-2010-mp8-with-excessive-blow-by/#findComment-274153 Share on other sites More sharing options...
ClaytonCchriS Posted January 13, 2015 Author Share Posted January 13, 2015 Thanks for the feed back! I'm going to look into getting a new separator (spinner) and try that. Quote Link to comment https://www.bigmacktrucks.com/topic/38400-2010-mp8-with-excessive-blow-by/#findComment-274155 Share on other sites More sharing options...
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