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head job: to grind or not to grind

posted by  Rhys on  Wed Jan 18 18:21 CST 2012
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last visit: Tue Nov 20 10:22 CST 2012
[RELATED]

Here's what I would do. Check the head for flat with a machinists straight edge, if good, clean with 320 wet-dry on a block of wood, and re-install it. It will be fine.
I've done hundreds of valve grinds, on all sorts of engines over the years. Volvo OHC rarely give trouble. If it has no symptoms, leave it alone. Don't even try to clean the pistons - just vacuum any loose bits out.
Oh - and don't even think of lapping used valves and seats together.






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