what is the compression for a 1994 merc 40 hp and where did you find this info. thanks in advance.
R ran Recruit Joined Jun 29, 2002 Messages 1 Jun 29, 2002 #1 what is the compression for a 1994 merc 40 hp and where did you find this info. thanks in advance.
M mnmfors Petty Officer 2nd Class Joined Nov 18, 2001 Messages 176 Jun 29, 2002 #2 Re: compression on 94 40hp 4 cyl merc I own a 90hp merc. I am pretty sure it would be at around 100-150lbs. per cyl. and more importantly the lbs per cyl. should be fairly close.
Re: compression on 94 40hp 4 cyl merc I own a 90hp merc. I am pretty sure it would be at around 100-150lbs. per cyl. and more importantly the lbs per cyl. should be fairly close.
A ahm Cadet Joined Jun 26, 2002 Messages 18 Jun 29, 2002 #3 Re: compression on 94 40hp 4 cyl merc I own a 1989 80hp 3 cyl merc and its compression is 110 psi when cold. I am told it would be higher when warm.
Re: compression on 94 40hp 4 cyl merc I own a 1989 80hp 3 cyl merc and its compression is 110 psi when cold. I am told it would be higher when warm.
