Mariner 4hp Wash Screw?

[reeflodge]

Hi
I have a 1988 4hp mariner which has been a very reliable little engine.
near the bottom of the leg are 2 screws, 1 is for oil and the otherone say "WASH" does anyone know what this is for?

Thanks
Paul

 

[carholme]

Re: Mariner 4hp Wash Screw?

Paul;

Should be for the fitment of a flushing attachment which is used to flush the inside of the cooling system. Once the attachment is inserted, you can connect a garden hose to it, much the same as using the muffs to run the engine on land.

Gerry

 

[reeflodge]

Re: Mariner 4hp Wash Screw?

Thanks Gerry

Does the motor need to be running when using this method?

Paul

 

[carholme]

Re: Mariner 4hp Wash Screw?

Paul;

No, don't run it when using the flushing attachment. If you want to run it, use the muffs.

Gerry