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Re: burning oil after valve job 850 93

posted by  someone claiming to be abe crombie on  Mon Apr 12 16:53 CST 1999 [RELATED]

Did they replace valve guides?

There is a common error made by machine shops when pressing guides out and new ones back in. They fail to set the head on a stand that has the right angle and the drift used to push out guide slides over to one side and scores a groove down one side of the bore into which guide fits. If this occurs on an intake guide the vacuum in port will pull in oil. I would bet that if you carnked engine and ran it for only a few minutes and then pulled out plugs you could tell which cylinder(s) are the culprits. It can be fixed with metallized epoxy applied under the seat/washer that valve springs rest on in head.





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