Coolant

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fmstuart

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Fluid Motion Model
C-24 C
Hull Identification Number
FML32C19L920
Non-Fluid Motion Model
Cutwater CB32 (not available on the drop down list
Vessel Name
Crimson Tide
I believe this may be coolant for the generator (yellow
8703ba0d2c218305654933283ad28402.jpg

fluid in picture) Not sure. Anyone know? And can I use any coolant (it is low).


Forrest Stuart
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Hi Forrest!

Westerbeke does not require a specific make of coolant, but recommends the use of "any good quality antifreeze" (their words)

They go on to mention the following:

"A good quality antifreeze - 1) Helps transfer heat 2) Prevents rust and scale build-up inside the engine cooling passage ways. 3) Protects against freezing. 4) Lubricates the fresh water circulating pump's shaft and seal. 5) Increases the boiling point of the coolant mixture when used in a pressurized cooling system, and 6) Reduces evaporation of the coolant mixture - the water used in the coolant mixture may evaporate to a small degree, but the antifreeze itself does not. A mixture of 50/50 antifreeze and distilled water is recommended. This concentration should provide freeze protection down to approximately -40 degrees F. Check the mixture chart provided by the antifreeze manufacturer to confirm the protection temperature. Do not mix brands of antifreeze."

Here are a few more tips direct from Westerbeke:

https://www.westerbeke.com/faq-maintenance.htm

Hopefully this helps, but please let us know if you have any additional questions.

Thank you!
 
Hi,

Westerbeke recommends a 50/50 mixture between an antifreeze and distilled water. At the factory, we use Volvo Penta Coolant VCS Ready Mixed (green color).
 
Thanks, guys! I ordered the product Marco suggested.


Forrest Stuart
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MarcoArias":2cemry7x said:
Hi,

Westerbeke recommends a 50/50 mixture between an antifreeze and distilled water. At the factory, we use Volvo Penta Coolant VCS Ready Mixed (green color).

Hi Marco,

I seem to remember from a Volvo presentation at Roche that the VCS shouldn’t be mixed with the “other” antifreezes. I could be completely wrong (old brain cells) but thought I’d mention it. Could you confirm or correct me?
 
That is correct! If you have the coolant flushed out of the generator during a service, it is wise to ask and note what type of coolant was used. This even comes down to the type of Volvo Penta Ready Mixed coolant (they have different colors; compositions). If this has not been done, it is most likely that it is the Volvo Penta coolant that I noted.
 
Our coolant was put in by the factory, so I assume the recommendation you provided will work?


Forrest Stuart
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Did the question of Yellow vs. Green Volvo Penta VCS Coolant get resolved? My reservoir is empty, but, it's also Yellow like Stuart's picture. I don't want to mix Green if that is not OK. I'm not draining the system, only topping off.

Also, what's the best place to order? I don't see it's available at local marine shops, maybe dealer only?
 
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