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Old 23-08-2016, 18:08   #16
sailorchic34's Avatar

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Boat: Islander 34
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Re: Yanmar Tools

Originally Posted by Pendragon35 View Post
Are you certain it's a Yanmar water pump? I ask because I have a the same engine. The first time the impeller failed, I felt good because I had a Yanmar basic spares kit that came with the boat, including impellers. Pulled one out, took the pump apart only to discover it didn't fit. The pump is not a Yanmar part and after some research I discovered a lot of Yanmar 3gm30's have a non-Yanmar water pump.
This is what fits mine:
There are TWO different Johnson pumps fitted to a 3gm30F. Johnson is the OEM for the yanmar raw water pump on the gm series.

There is an EU version and a separate version for the US and everyone else. They are not compatible. Though the pump body is the same size. It's a feature....

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Old 23-08-2016, 18:50   #17
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Join Date: Jun 2009
Location: Varies
Boat: Pacific Seacraft 34 #142
Posts: 1,174
Re: Yanmar Tools

I have a 3HM35, but I could not bleed my injectors until I bought flare nut wrenches. For sure recommend the investment.

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