Mercury 402 - 40 HP problem

4x4dakota

Recruit
Joined
Oct 20, 2003
Messages
5
Hello all.

I've been trying to resolve a problem I've had with my motor.
It's a 1978 Mercury 402. I have 2 other threads on RibNet forums http://www.rib.net/forum/showthread.php?t=36526
&
http://www.rib.net/forum/showthread.php?t=36928

I've now figured I'm getting water in my cylinders when the motor is running.
The motor boggs down at WOT, but if I stop the engine and rotate the plugs, start it and go she will run perfect until I slow down then it boggs again.

Anyways if you go to thread #2 on Ribnet i've posted photos and a description of what I've done to the motor when this problem started.

Any help would be great.

Thanks,
 
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