Volvo 125a cooling system

[-JR-]

My hard cover manuals do not show any diagrams of the cooling system flow of my 125a /270 leg .Could someone please direct me to a drawing.

I have good flow from the engine lake water pump up to the lakewater tank ,
then it gets pressured up here and comes out from under the cap filling the engine haul with water !From there it must be plug with sand as the screen under the cap is clean.
Not going any farther past the tank the engine is over heating.

 

[Don S]

Re: Volvo 125q cooling system

Re: Volvo 125q cooling system

I don't know of any flow diagrams for the 125's, but I would check to see if the exhaust manifold is plugged up.

 

[-JR-]

Re: Volvo 125a cooling system

Worked on the boat this evening and found the heat exchanger pluged up .
Looks like weeds etc.
Manual says to get some murriatic acid from a swimming pool supply house.
Just wonding if I could use some household sink drianing liquid.