Engine squeaks on cold start

SaltWaterDiesels.com Forums Yanmar GM Users Forum Engine squeaks on cold start

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    Captain-Yogi
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    I have a Yanmar 2GM20 in my boat and it’s started squealing at start (especially cold start) and there is a delay in water exiting the exhaust. Squealing stops and then water flows.

    Next time at boat I’ll service it but is this likely a belt, new impeller needed, or bearing?

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