Join Date: Apr 2002
Location: Dandridge (Near Knoxville), TN, USA
Re: 36K Service Valve Check
Originally Posted by ehaughn
One would think the clearance between cam lobe and valve would increase.
Why do you think the exhaust is below the minimum spec?
On just about any cam over valve type engine, the clearances wear tighter, as the normal wear is the valve head to seat wear, NOT cam wear. Thus, the valve sinks lower in the head, tightening up the clearance.
If you ever get valves wearing looser, you have an expensive problem starting, maybe already ready to suck your wallet down a little. The only way they will loosen up is for either the cam lobes/followers to wear, or even worse, the cam bearings in the head. The former is expensive, the later VERY expensive.
I don't want to achieve immortality through my work...I want to achieve it through not dying.
EX: '01 Black LT, BAT BYKE (Totaled at 110,000 miles)
IBA SS, BB, BBG, 10/10ths.
No bike now, but maybe in the future.