Coolant system flush

bcny · Jun 27, 2021

'48 A/C model C. Is it safe to do a coolant system flush?
Any risk of the wet cylinder liner seals leaking, or maybe the water pump seal? Or any other problems. Would use a flush compound from auto parts store. Nothing radical.
Thanks.

caterpillar guy · Jun 27, 2021

Why not just drain old coolant? Fill with water run a few days then drain, when you park it next time right after running. Then refill with new coolant.

old · Jun 27, 2021

What I do is drain the old coolant then fill with vinegar and run it till good and warm. Let it cool and drain that and then rig a way to hook up to the block drain and back flush the system with a garden hose. If the system is good that will not cause a problem but if it is iffy it could find a leak which would happen any how sooner or later

rrlund · Jun 27, 2021

Did those have wet sleeves? I thought they were dry?

old · Jun 27, 2021

B/C are both wet sleeve engines

Dean · Jun 27, 2021

I stopped using cooling system flush chemicals about 35-40 years ago when I grew tired of changing water pumps.

Haven't changed a water pump since.

Dean

Coolant system flush

bcny

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caterpillar guy

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old

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rrlund

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old

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Dean

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