Max Power Posted March 27, 2005 Share Posted March 27, 2005 I am preparing to replace the head gaskets in my 97 OB 2.5. The Haynes manual states that the cam shafts should be removed prior to removing the cylinder heads. I have been looking at diagrams of the engine for days and I can't figure out why the cam shafts would need to be removed at any point during head gasket replacement. Do the cam shafts really need to be removed during head gasket replacement? I know a lot of you have replaced the head gasket, and I would really appreciate your input. I intend on doing a complete seal and gasket replacement in a couple months, but right now I have just enough time to do the head gasket job and nothing more. Thanks in advance, drw Link to comment Share on other sites More sharing options...
Tiny Clark Posted March 27, 2005 Share Posted March 27, 2005 I'm not a subie motor head, but give me a chebby small block... I can't see any reason for this, unless the cams are on top of the head bolts. I don't know if I would go to the trouble of R-squaring the gaskets without having the heads shaved or checked for flatness tho. If shaved, the valve lash would need to be adjusted, and always go on the err side of loose. Link to comment Share on other sites More sharing options...
sea#3 Posted March 27, 2005 Share Posted March 27, 2005 Yes you have to remove the cams to access the head bolts . it would be wise to resurface the heads and check the valve clearence SEA#3 Link to comment Share on other sites More sharing options...
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