Originally Posted by BigFish
Hey, that works! I've used the ol' blowgun trick many times! Either way, ya gotta get past the point where the ACR is holding one of the valves open. Usually you have to bring the piston PAST top dead center by about a quarter inch or so. On OHV units, you can check the rockers for play and go with that.
I'm used to working on cars, no compression release. So the acr holds the exhaust valve open at tdc on compression stroke?