Cooling system '96 Merc. 200hp

[Mettaree]

Would like to try to clean out cooling passages to get rid of any corrosion, etc. I test run using 150 qt. cooler box - would it hurt to put something? in the water that is in the cooler box. Concerned abt L/U paint and impeller blades with whatever would be recommended, Muratic acid or whatever. Any suggestions greatly appreciated.<br /><br />Jim<br />

 

[gss036]

Re: Cooling system '96 Merc. 200hp

About the only thing that would clog up the passages would be salt build up and normally a good run in fresh water takes care of that. Boaters World sells a salt remover system, I have no idea if it works.<br />I am running an 89 200 hp Mercury and probably 98% of the hours have been salt water and have never had a problem.<br />What makes you think there is corrision?

 

[Mettaree]

Re: Cooling system '96 Merc. 200hp

Bought the motor used and have no idea as to history. Having t-stats and poppet valve changed to prevent possible probs. Same with flush for possible corrosion. Thanks for response.<br /><br />Jim<br />