|
Day 2 of chromoly pushrods. As the night progressed I noticed the valve noise get progressively louder. I parked it and let it sit overnight before checking the lash again this morning. They had definitely opened up quite a bit.
This time around I have set the lash to what the Aircooled VW guys call "0" lash, which is essentially turning the lash adjuster in with your fingers until it touches the valve, but the pushrod still spins freely. Since the aluminum block and head expand more than the steel pushrod, the lash gap widens considerably as the engine gets up to temp. This is evidenced by the clatter my engine still makes even with the lash set so tight.
I rode it around for a little while and then parked it in my air conditioned garage space ( i have a vent that I can open) in order to let it cool off a bit more quickly. In about 6-8 hours I am going to check the lash gap again. Here soon everything should be bedded in nicely, but no matter what I do, the clatter will remain.
|