Re: Compression test DOHC

Posted by seestheday on May 09, 2013; 6:14pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Compression-test-DOHC-tp4038499p4040556.html

Lobes on their side facing out (away from eachother) will give you the best results.

This is TDC during compression and is the most critical time that the valves must be sealed.  It is for this reason that you need the clearance.

Lobes facing up may be "good enough" but if you're trying to get every bit of performance out of your engine you want to do it when they're facing out.

This is also what the FSM says (although it's not explained well).

Article on the "F" site that explains it: http://www.cb1100f.net/modules.php?name=Forums&file=viewtopic&t=70625&highlight=cam+lobes