How does one flush their inboard-outboard system?

[Faerbairn]

1979 Mercuiser 140hp, Serial # 5332813

Mercruiser 140 Outdrive # 5337746

My problem: Rusty deposits coming out of my cooling system. I want to run some sort of product thru my system to clean out all of the deposits. Does anyone know of a simple way and a good product to do this?

Thank you for your help.

 

[Haut Medoc]

Re: How does one flush their inboard-outboard system?

None that I know of.....

 

[JustJason]

Re: How does one flush their inboard-outboard system?

raw water or closed cooling?

 

[Faerbairn]

Re: How does one flush their inboard-outboard system?

Raw water

 

[KRS]

Re: How does one flush their inboard-outboard system?

I'm not aware of any product that you can pour in that will remove rust.

 

[cooter2506]

Re: How does one flush their inboard-outboard system?

IMO I would pull the riser and exhaust manifold for a thorough inspection. Sounds like they are flaking apart. Probably due for a change.

 

[JustJason]

Re: How does one flush their inboard-outboard system?

nothing you can really do for rust. its normal and is going to happen. West has a "salt treatment" kit for like 40 bucks that you hook up inline with the muffs. may not hurt to try it.
if the manifold/riser is above 160 in the water then it's time to change those as well.

 

[Don S]

Re: How does one flush their inboard-outboard system?

Things like Salt-Away will help control it, but nothing will stop it.
http://www.saltawayproducts.com/