By whatever means you use to tension the belt, do not over tension. I do not have my manual before me but I am certain Yanmar directs that the belt be tensioned only to the point where it can be deflected about 1/2 inch. I had rebuilt a water pump on a 2 QM15 Yanmar, overtightened the belt, and had the pump's shaft ream out the fitted whole in the pump's pulley and then have the shaft destroyed (rounded off) where it was to match with the pully. Took probably less than an hour of operation for the damage to be done.
Ed C&C 34 Briar Patch New Orleans, La. From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts Sent: Tuesday, December 03, 2013 3:45 PM To: 1 CnC List Subject: Re: Stus-List Stiff throttle and belt recommendations for Yamar 2GM20 on cnc 30 mkII The nice thing about the jack is that it leaves you two hands to do things with. With my Yanmar, I need both. I could actually use a third, and another eyeball on a stalk. But I digress... Remember to take it out before you start the motor, it makes a really loud noise if you leave it in place. On 3 December 2013 11:52, dwight <dwight...@gmail.com<mailto:dwight...@gmail.com>> wrote: Maybe it’s not a good idea but I use the pump handle from my Navtec hydraulic backstay adjuster to tension the alternator belt which is right out front on the Universal M4-30…one less tool to carry on board ________________________________ From: CnC-List [mailto:cnc-list-boun...@cnc-list.com<mailto:cnc-list-boun...@cnc-list.com>] On Behalf Of Jim Watts Sent: December 3, 2013 10:54 AM To: 1 CnC List Subject: Re: Stus-List Stiff throttle and belt recommendations for Yamar 2GM20 on cnc 30 mkII I would not be without this belt tensioning tool. I'm thinking of buying a couple more just in case the ones I have break. They are really hard to find. http://www.mscdirect.com/product/35438209?rItem=35438209 As for belts, several sources have told me that Gates makes the best belts, cogged or otherwise. On 3 December 2013 06:07, Aaron Rouhi <admiralmag...@outlook.com<mailto:admiralmag...@outlook.com>> wrote: 3) I don't own a belt tensioner so instead I use an Irwin Quick Grip Clamps/Spreader to tension it. Not ideal but it works... Cheers, Aaron R. Admiral Maggie, 1979 C&C 30 MK1 #540 Annapolis, MD ________________________________ Date: Mon, 2 Dec 2013 22:03:28 -0800 From: kevindrisc...@gmail.com<mailto:kevindrisc...@gmail.com> To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Subject: Stus-List Stiff throttle and belt recommendations for Yamar 2GM20 on cnc 30 mkII Our new to us 30-2 started sounding a bit hollow and throwing some stream out of exist the other night so I opened the water pump Sunday and found this: https://docs.google.com/file/d/0BwhcX19YaPJ8N3E0cmJrYWwyTlE/edit?usp=docslist_api Only one of the fins appeared to be completely in tact So my questions are: (1) - What is the best toothed belt easily obtained as a replacement? (I read the Yanmar belts were less than stellar) (2) - How would you clean pullies before reassembly? (3) - 30 mk-2 owners....How the h€ll does one tighten an alternator belt on the 2GM20 with the nut facing the back of the nut facing the stern and almost completely inaccessible. (4) - The throttle is painfully stiff to the point I almost need two hands to move it. Is there an easy lubrication point to get it moving again till I can replace the cable? Thanks everybody. Kevin s/v Osprey C&C 30 mkII Pic from Thanksgiving: https://docs.google.com/file/d/0BwhcX19YaPJ8QWtlbGE2NzhYRzQ/edit?usp=docslist_api Sent from my Tablet _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com<mailto:CnC-List@cnc-list.com> _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com<mailto:CnC-List@cnc-list.com> -- Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC ________________________________ No virus found in this message. Checked by AVG - www.avg.com<http://www.avg.com> Version: 2012.0.2247 / Virus Database: 3629/6387 - Release Date: 12/03/13 _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com<mailto:CnC-List@cnc-list.com> -- Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC
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