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Main : Misc Valve, Valve Spring & Valve guide specs

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Valve, Valve Spring & Valve guide specs
Valve, Valve Spring & Valve guide specsPopular
Submitterdatrat_daveMore Photos from datrat_dave   Last Update2005/4/26 9:55    Tell a friendTell a friend
Hits2647  Comments0    0.00 (0 votes)0.00 (0 votes)
Again fuzzy but my scanner sux and having to make all photos below 1mb is hard...

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Poster Thread
ddgonzal
Posted: 2008/1/5 23:59  Updated: 2008/1/5 23:59
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31575
 Re: Valve, Valve Spring & Valve guide specs
WARNING: The service manual page pictured here has the cold Valve Clearance specification incorrect.
My 1971 Factory Service Manual also has this incorrect. In the 1972 and 1973 revisions, they no longer list a COLD spec (they recommend only HOT adjustment).

COLD is 0.25 mm clearance (correct as in the photo). In parentheses it says "0.010 inch". This is what is wrong and too tight: it should be 0.013 inch COLD per other books. Testing proves this: Set it to 0.014 HOT, then re-measure after engine is COLD. It will have reduced to 0.013.

Valve Clearance, 1972 Owner's Manual: HOT: 0.014 in