Winterizing Alpha 1 4.3ltr Mercruiser

[Dustin102]

I have found all 4 plugs. All have been drained. I poored antifreeze in the smaller ones going out the drain plugs on top until it came out pink, then plugged drain and filled up hose. Which hoses are associated with the drain holes on the bottom of the engine? I put antifreeze in the big hose going into the water pump and the other one on opposite side, but didn't see anything coming out of the drain holes on the bottom. Maybe I didn't put in enough??

 

[Volphin]

Re: Winterizing Alpha 1 4.3ltr Mercruiser

Why are you bothering with AF? Air does not freeze...

 

[Dustin102]

Re: Winterizing Alpha 1 4.3ltr Mercruiser

Just making sure there is no water left in to freeze. For my sanity!

 

[Volphin]

Re: Winterizing Alpha 1 4.3ltr Mercruiser

Pull the hoses from the bottom of the manifolds too. When you drained the block, did you poke a wire in the holes to ensure that they were free of sediments? Some folks forget to do that and leave water in the block by mistake.

 

[Dustin102]

Re: Winterizing Alpha 1 4.3ltr Mercruiser

I let it drain over night. I'll be doing that this evening. I've got a skinny wire brush that should fit through the drain holes.

 

[81 Checkmate]

Re: Winterizing Alpha 1 4.3ltr Mercruiser

A nail, paper clip, bailing wire ect....should work to poke/prod the holes....Also put your outdrive down to drain the water from the out drive.