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Forum: Engines and Propulsion Systems

10-01-2019, 17:04

Replies: 83

Be Wary (Maybe) of Stay Cool Pumps Impellers

Views: 16,192

Posted By wsmurdoch

Re: Be Wary (Maybe) of Stay Cool Pumps Impellers

I have always lubricated my rubber impellers with salad oil, but this thread caused me to take a look around, and it looks like glycerin is the recommended lubricant for Johnson impellers. (p10)
...

Forum: Engines and Propulsion Systems

10-01-2019, 12:35

Replies: 83

Be Wary (Maybe) of Stay Cool Pumps Impellers

Views: 16,192

Posted By wsmurdoch

Re: Be Wary (Maybe) of Stay Cool Pumps Impellers

The Yanmar impeller for my Yanmar 3HM35F says JOHNSON and 827 in raised markings in the rubber between the roots of its blades.

The heat exchanger on my engine is 3 pass on the tube side (fore to...

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