hi, i have a 2004 140 hp merc.

albynuz

Recruit
Joined
Feb 13, 2022
Messages
3
it seems to be heating up only on the starboard bank of the block.
all has been changed inc water pump and impellor.
taking off the thermo housing while running plenty of water is being pumped.
don't know why only one side is the problem.
 

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,795
If its a V6 you have thermostats at the top rear of each side water jacket cover.....2 each. The starboard side is probably stuck shut....it happens BTDT with a stuck stat, on an inline 3 cyl. 90 hp.
 

QBhoy

Fleet Admiral
Joined
Mar 10, 2016
Messages
8,348
Can't think what engine this could be. a 140 mercury from 2004 and a v engine ? any more details ? thanks
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,687
Perhaps a JET rated motor.-----Perhaps an international V-6 ?---post pictures here.--- Serial # is ?
 

albynuz

Recruit
Joined
Feb 13, 2022
Messages
3
If its a V6 you have thermostats at the top rear of each side water jacket cover.....2 each. The starboard side is probably stuck shut....it happens BTDT with a stuck stat, on an inline 3 cyl. 90 hp.
hi, did you see what i mentioned, i have tried it also with the thermos out and plenty of water it coming out.
 
Top