Re: Compression and Valves

Posted by robs750 on Sep 06, 2012; 12:11pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Compression-and-Valves-tp4028598p4028773.html

You have stated that some of the valves have less than .04MM clearance.That equals to less than .0015".If you cant get a feeler guage in,then they may be holding the valves open if your lucky.

I would suggest swapping out the shims with a couple of quarters in the low reading cylinder to open the clearance.No need to invest money on new shims until you know that the head is good.
With the valves fully closed,do a leakdown test.