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Old 19-09-2019, 12:19   #1
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cooling flush

got a question.
I have taken off, cleaned, and pressure tested the heat exchanger and put it back on

I would like to flush the system and add new coolant.

1. can I fill the cooling system with a flushing mix in run the engine for a short time, then dispose the mixture ( I removed the thermostat) or should I use water

2 where is the best place to drain the mixture

3 what is the direction of flow or does it matter ?
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Old 19-09-2019, 12:22   #2
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Re: cooling flush

I have a westerbeke w-58
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Old 19-09-2019, 18:22   #3
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Re: cooling flush

Have you read the Operation Manual or doesn't it cover your question?

https://www.westerbeke.com/operator%...100_033507.pdf


http://motorklubben-columbus.weebly....nersmanual.pdf
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Old 19-09-2019, 18:28   #4
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Re: cooling flush

Quote:
Originally Posted by shadowdancer View Post
got a question.
I have taken off, cleaned, and pressure tested the heat exchanger and put it back on

I would like to flush the system and add new coolant.

1. can I fill the cooling system with a flushing mix in run the engine for a short time, then dispose the mixture ( I removed the thermostat) or should I use water

2 where is the best place to drain the mixture

3 what is the direction of flow or does it matter ?
Personally, I just flush with fresh water, drain by disconnecting the lowest hose, refit hose and fill with appropriate coolant. I would replace the thermostat.
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Old 20-09-2019, 04:19   #5
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Re: cooling flush

Quote:
Originally Posted by shadowdancer View Post
I would like to flush the system and add new coolant.

1. can I fill the cooling system with a flushing mix in run the engine for a short time, then dispose the mixture ( I removed the thermostat) or should I use water

Our engine service manual recommends just that. Happens they also recommend their preferred product (Fleetguard Restore) for flushing.

You might check your own manufacturer's recommendations.

-Chris
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