Coolant question

[scottlimoni]

I drained coolant out of motor. I added cleaner and distilled water and ran boat. I drained and added coolant. I forgot to get the boat back up to operating temperature so the thermostat opens. Is this ok for winter? I want to make sure that when you drain the cooling system by taking out the screw in the drive plate the whole thing empties. Thanks

 

[gazzaskirepair]

Yeah you should be ok there may have a little air but the drive plate return circuit is open to the thermostat housing
I normally just squeeze the hoses during filling and then only need about 250ml to add to bottle

 

[scottlimoni]

Thank you. So you don't think any of the water from the flush is stuck in there enough to wreck anything during the freezes? I already shrink wrapped the boat. Ugh. As long as the whole cooling system drains even with thermostat closed I wont worry.

 

[scottlimoni]

Just for the record, I was changing out all the coolant because I don't believe it's been done in some time.

 

[gazzaskirepair]

Did you drain the cleaner from the ride plate ?

Think manual says every two years but I know many people don’t bother

What percentage coolant you using

 

[scottlimoni]

I drained from drive plate. I used xps 50/50 extended life.

 

[scottlimoni]

I just want to make sure from the drive plate that the whole cooling system empties regardless of thermostat being closed.

 

[gazzaskirepair]

Yes it does
And that’s what the shop manual says too
You got a ski or boat ?
Just asking nothing to do with draining as it’s the same

 

[scottlimoni]

Boat

 

[scottlimoni]

I did everything the manual says except I am worried that after I refilled with coolant I did not get the boat up the operating temperature to open the thermostat

 

[gazzaskirepair]

You’ll be good just remember to check level next you have it running

 

[scottlimoni]

Great. Thanks for your help. I really appreciate it.