[s-cars] Valve cover gasket subtleties

[Wayne Dohnal]

1. The studs that the coil cover is fastened to are also holding down the 
valve cover and need to be removed.  If you find yourself  'pursuading' the 
valve cover to come off (hammer, pry bar, etc.), stop and figure out which 
fastener you missed.

2. The half-round plastic plug at the rear is notorious for leaking oil.  A 
little RTV gasket maker on the plug's edges before installing it seems to 
solve the problem.

Wayne Dohnal
1994 S4