Paul — I’ve got the Sendure cooling system retrofit on my 3QM, so there’s the engine-mounted pump for the coolant, and a separate belt-driven pump for the cooling water. The separate pump is similar to those being discussed.
— Fred Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI > On Jul 10, 2017, at 11:58 AM, Dreuge via CnC-List <[email protected]> > wrote: > > Hi, > > Please note that 3QM30 water pump are not like some of the GM pump with > pulleys, the QM pump is shaft driven directly by the camshaft(i.e. no belt). > > I have not rebuilt one, but it looks easy enough, 2 circular clips, bearings > and seals. I can send you the schematics from the parts manual if you want. > It shows a nice layout of all the parts including the Yanmar part numbers. > TOAD Marine lists a new one at $810.16 (yanmar part number 724770-42702). > You can see a picture of a new pump at Crowley’s: > https://billpay.crowleys.com/eSource3/Cooling_pump_assembly/i_0_0_/_Y%20724770-42702 > > <https://billpay.crowleys.com/eSource3/Cooling_pump_assembly/i_0_0_/_Y%20724770-42702> > > > - > Paul E. > 1981 C&C 38 Landfall > S/V Johanna Rose
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