This isn't a problem I am having, but would like to know. If someone installs new shims and doesn't allow for enough clearance - how long before damage occurs?
What sparked my interest in this is that because this was my first time pulling a camshaft, replacing the shims and installing new hushers - i'm driving down the road waiting for the engine to explode. Simply becuase it's the first time I've done engine work like this and not a mechanic. I am exaggerating here, but there is that thought in the back of my mind -- did I do everything right?
Now, I've driven the car about 25 miles and she seems to run perfectly. But, I was wondering - had I not rechecked my clearances - would I see valve damage immediately, in 100 miles, in 1,000 miles?