Adding Coolant to Mercruiser 3.0L

[Bay175]

Hello,
I bought a boat at the end of last year ( Bayliner 175 with MerCruiser 3.0L), so I'm very new boat owner! I did have my boat professionally winterized and it is around the time to dewinterize it (MN guy!). Anyway here is the question: How do you add the engine coolant? Thanks in advance!!

 

[Don S]

Re: Adding Coolant to Mercruiser 3.0L

Are you sure you have a heat exchanger? I don't see why your boat would have a closed cooling system since you don't boat in salt water.

 

[Bondo]

Re: Adding Coolant to Mercruiser 3.0L

Hello,
I bought a boat at the end of last year ( Bayliner 175 with MerCruiser 3.0L), so I'm very new boat owner! I did have my boat professionally winterized and it is around the time to dewinterize it (MN guy!). Anyway here is the question: How do you add the engine coolant? Thanks in advance!!

Ayuh,.... Welcome Aboard,... Usually by puttin' the muffs, 'n hose to the lower unit, or dunkin' it in the pond...

Hard to believe you've got a heat exchanger, 'n closed coolin'...

 

[Bay175]

Re: Adding Coolant to Mercruiser 3.0L

Hello Don S.
You are right, I don't boat in salt water, but looking at the engine manual, they recommended the use of coolant.
Here is the link to a photo of the engine.

http://www.boatsplus.com.au/boat-en...nboards/mercruiser-3-0l-135-hp/prod_1742.html




Thank for your help!

 

[Don S]

Re: Adding Coolant to Mercruiser 3.0L

Post a picture of YOUR engine, I doubt you have freshwater cooling. If you don't have a freshwater cooling system, you can't add coolant.

 

[Bay175]

Re: Adding Coolant to Mercruiser 3.0L

Here it is.

 

[Don S]

Re: Adding Coolant to Mercruiser 3.0L

You don't have fresh water cooling. So there is no way for you to add coolant.

 

[Bay175]

Re: Adding Coolant to Mercruiser 3.0L

That's great. Thanks so much for the help Don S. Appreciated!!!