In a message dated 9/2/04 2:41:19 PM Eastern Daylight Time, dorpaul@negia.net
writes:
<< On my '66 TR4 engine are both intake and exhaust valve stems the same
diameter? >>
You would need to look in a engine book for TR specific measurements. For
engines in general, there is a nominal valve guide/stem size of say 5/16" for
example. The exact size is listed at .3125" for the stem and say, .3145 for
the
exhaust guide and .3135 for the intake guide.
In general, the intake stem/guide clearance is smaller to control oil, the
exhaust is larger due to the extra heat generated by the exhaust gasses.
Harold
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