Guys:
First, thanks for this great forum. I am very impressed with the expertise here! I have a valve lash issue, and would appreciate any help folks can provide.
I removed the head cover from my GCV160 and discovered that at TDC the intake valve lash was over 0.040". Exhaust measured at 0.006". I am uncomfortable simply setting the lash to spec and putting the machine back together, and would appreciate everyone's input.
Background: I bought a new Karcher pressure washer equipped with the GCV160 engine. It now has 40 hours on the engine. Changed oil at 5 hours. Oil level good. But one day the engine would not start. Good spark, but discovered zero compression.
So I pulled the head cover. Discovered the intake valve was not moving freely. Valve stem covered with goo that looked like typical gasoline varnish. My fault. I suppose I left gasoline in the engine and it got stale.
I sprayed carb cleaner on the stem and the valve immediately began to move freely. Finger over the plug hole indicates compression is now there. But there is huge clearance between the intake valve stem end and the rocker arm of 0.040".
I wonder what might cause the funny lash readings. It sounds like there is metal to metal contact so the intake valve appears to be seating. But something is not right. Could the rocker possibly be bent? Any ideas and guidance would be greatly appreciated.
Thanks, Bill
