steeler Posted December 4, 2018 Share Posted December 4, 2018 After an injector cup job, while adjusting valves, the plunger on #5 exhaust valve is sticking out a little more than the others. All others adjusted fine, but#5 has a much thinner shim under it, like someone had this issue last time. If I push down on the rocker arm, three is a little spring loaded feel to it, not anymore than the others had. Any reason this plunger is sticking out further? Quote Link to comment https://www.bigmacktrucks.com/topic/54956-mp8-valve-adjustment-problem/ Share on other sites More sharing options...
fjh Posted December 4, 2018 Share Posted December 4, 2018 Check the engine brake slaves for winding apart ! Valve resessesion? Quote Link to comment https://www.bigmacktrucks.com/topic/54956-mp8-valve-adjustment-problem/#findComment-410683 Share on other sites More sharing options...
steeler Posted December 4, 2018 Author Share Posted December 4, 2018 (edited) I just pulled the rocker back loose and switched 4 and 5 plungers. Everything looks perfect now. I don't know why that plunger doesn't like being in number 4, but it all adjusted up just fine now. Edited December 4, 2018 by steeler Quote Link to comment https://www.bigmacktrucks.com/topic/54956-mp8-valve-adjustment-problem/#findComment-410685 Share on other sites More sharing options...
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