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Valve clearance numbers OK? 700

posted by  Joebrick on  Sun May 30 01:19 CST 2004
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last visit: Tue Aug 25 02:53 CST 2009
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I need an opinion from those experienced in valve shim replacement: I have an "89 740 GL, B230 engine. I found a few clearances measured at 0.457mm and 0.483mm with 170,000 miles on the engine (3 of the eight are OK at around 0.406mm). I will be pulling the cam next week to replace hushers, distributor seals, etc. and wonder if you think its justified to "re-shim". My only concern is burning valves. Are these numbers close enough?

Also if you think it's justified what would you take it down to with a spec of 0.3 to 0.4. One shim step seems to be 0.05mm.

Thanks in advance.






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New Valve clearance numbers OK? [700]
posted by  Joebrick  on Sun May 30 01:19 CST 2004 >


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