TP32 Posted May 2, 2022 Share Posted May 2, 2022 Exhaust valve lash spec Link to comment Share on other sites More sharing options...
Robert Engle Posted May 2, 2022 Share Posted May 2, 2022 all valves, all models in 1932 .008" hot. Per specs and adjustments manual. Bob Engle 1 Link to comment Share on other sites More sharing options...
TP32 Posted May 2, 2022 Author Share Posted May 2, 2022 Thanks Bob but I thought.008 was a bit tight especially the exhaust valve so I set them all at .009 hot even though the manual calls for .008. The cylinder head does have hardened valve seats and I run non ethanol fuel but I was concerned about the valves being pounded in the seats with .008 thou lash. Thanks. Tony P Link to comment Share on other sites More sharing options...
Robert Engle Posted May 3, 2022 Share Posted May 3, 2022 The valve spring loading and low rpm function of these engines should not hammer the valves or seats. 50 series total spring loading is closed 32 1/2 to 42 1/2 lbs. open is 99 to 110 lbs. 60, 80, 90 series is 39 1/2 to 49 1/2lbs closed and 131to 144 lbs open. your main concern should be that the valves are fully seated when closed. You will get more pounding at greater lash, but '001" isn't going to make much difference. Roller cams are more gentle on the valve train than with solid lifters. Bob Engle 2 Link to comment Share on other sites More sharing options...
TP32 Posted May 3, 2022 Author Share Posted May 3, 2022 Thanks for the info Bob That clears up my concerns Thanks. Tony P Link to comment Share on other sites More sharing options...
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