WATER!!

[jerryjerry05]

1986 200 Mercury.
My customer said he thinks there might be water in the motor???
He's right. The stbd. bank of cyl. was full and had hydro locked the motor.
Got it freed up and running good on the hose.
He put it in the water and it did it again.
Same 3 cyl. on stbd. bank.
Any ideas???
Thanks

 

[Scott Danforth]

leaking water jacket cover

 

[Faztbullet]

Divider plate,powerhead gasket or head gasket

 

[Scott Danforth]

no head gasket on a mercury

 

[Faztbullet]

no head gasket on a mercury

There is 2 headgaskets on a 1986 200hp

 

[jerryjerry05]

Thanks.
New gaskets on the head and water jacket.
New thermo's , new impeller, pressure relief rebuilt.