Re: Stus-List Yanmar 2QM15 water pump

2012-08-20 Thread dreuge
Hi, It sound like your belt was on too tight. I was informed by a marine mechanic that for this pump, one should be careful not to tighten the belt too much, and that it is better to have it a bit loose. The reason is that the water pump on the 2QM15(and some other smaller yanmars) have s

Re: Stus-List Yanmar 2QM15 water pump

2012-08-17 Thread Dennis C.
c-list.com wrote: - > To: cnc-list@cnc-list.com > From: Graham Collins > Sent by: cnc-list-boun...@cnc-list.com > Date: 08/16/2012 09:05PM > Subject: Re: Stus-List Yanmar 2QM15 water pump > > Hi Ed > I'm assuming the pulley was on tight. Did you verify that the pull

Re: Stus-List Yanmar 2QM15 water pump

2012-08-17 Thread ELevert
...@cnc-list.com wrote: - To: cnc-list@cnc-list.com From: Graham Collins Sent by: cnc-list-boun...@cnc-list.com Date: 08/16/2012 09:05PM Subject: Re: Stus-List Yanmar 2QM15 water pump Hi Ed I'm assuming the pulley was on tight.  Did you verify that the pulley was properly aligned with the

Re: Stus-List Yanmar 2QM15 water pump

2012-08-16 Thread Graham Collins
Hi Ed I'm assuming the pulley was on tight. Did you verify that the pulley was properly aligned with the drive pulley? If something was off there (maybe a spacer on the shaft in the wrong place, for example) it would put an offset load on the pulley. Graham Collins Secret Plans C&C 35-III #

Stus-List Yanmar 2QM15 water pump

2012-08-16 Thread ELevert
I rebuilt the spare water pump. New seals, new bearings. All went back together with no apparent glitches. After no more than 2 hours of operation, the shaft has reamed the pulley to an almost perfect circle and the pulley likewise wore the shaft so that it is no longer notched to fit in an unda