Administrators BRAAP Posted December 20, 2009 Administrators Share Posted December 20, 2009 If the engine sat for an extended time period, especially in humid environment that sees big temp swings, the valve could've stuck in the guide allowing piston contact. Quote Link to comment Share on other sites More sharing options...
zatsun Posted December 21, 2009 Author Share Posted December 21, 2009 I did read that once about the engine sitting. I haven't taken a look at the guides, what causes this? Corrosion that can be cleaned up or do they need to be replaced? Quote Link to comment Share on other sites More sharing options...
Ben Posted December 21, 2009 Share Posted December 21, 2009 Yes and maybe... A visual inspection will do you wonders, and you're pulling the head apart anyway. Quote Link to comment Share on other sites More sharing options...
zatsun Posted December 21, 2009 Author Share Posted December 21, 2009 Don't have a valve spring compressor, so couldn't inspect the guide. Head at machine shop now. The owner used to have a 280, so I'm confident when I get it back it'll be good as new. Getting pressure checked too since I was losing coolant. $150 clean, valve job, machine face,etcf $35 pressure check ~$10/valve $50 remove 2 broken manifold studs. Didn't even know those bolts were missing, should fix exhaust tick! Quote Link to comment Share on other sites More sharing options...
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