In my 87 vanagon (waterboxer) I think my (L) head lifters are going bad 2 of
the 4 sink when I push on the pushrod. Is this normal? The other 2 are stiff.
 I just removed the rockers the other day to replace a bent pushrod. I think
I made a mistake when I put everything back together, because it ticks and I
took the cover off and that's when I found the sinking lifter. I have a
Bentley book and I need help.

Kurt