94' merc 200 hp with rebuilt power head. 60lb comp in one cylinder with silver colred piston heads??
H huddled Cadet Joined Aug 21, 2008 Messages 10 Mar 16, 2010 #1 94' merc 200 hp with rebuilt power head. 60lb comp in one cylinder with silver colred piston heads??
j_martin Admiral Joined Sep 22, 2006 Messages 7,474 Mar 16, 2010 #2 Re: discolored piston head/ low comp Water intrusion steam cleans it. Probably bad head gasket. If all the pistons are super clean, yer in deep doo-doo.
Re: discolored piston head/ low comp Water intrusion steam cleans it. Probably bad head gasket. If all the pistons are super clean, yer in deep doo-doo.
O o/b tech Petty Officer 2nd Class Joined Apr 15, 2005 Messages 198 Mar 16, 2010 #3 Re: discolored piston head/ low comp How was the burn on the spark plug???? What do you mean by silver coloured head?? Was the piston crown silver or the head??? How many hours on the rebuild??? Was the motor overheated etc.
Re: discolored piston head/ low comp How was the burn on the spark plug???? What do you mean by silver coloured head?? Was the piston crown silver or the head??? How many hours on the rebuild??? Was the motor overheated etc.
V verado7 Chief Petty Officer Joined Apr 28, 2009 Messages 511 Mar 18, 2010 #4 Re: discolored piston head/ low comp silver pistons is good - no carbon build up -you should see a film of oil on it though or look wet - however 60 psi on 1 is not good
Re: discolored piston head/ low comp silver pistons is good - no carbon build up -you should see a film of oil on it though or look wet - however 60 psi on 1 is not good
