Unfortunately, there’s no way to avoid that trip to the boat. The Yanmar 2GM20 came with three different gear ratios. My manual is on my boat, but I believe they are around 2.2 2.62 and 3.2. I have the 2.62 ratio on a 2GM20F on a Bristol 30.
The ratio is listed on a small tag located near the rear of the engine. Jack Brennan Former C&C 25 Shanachie, 1974 Bristol 30 Tierra Verde, Fl. From: Jim Reinardy via CnC-List Sent: Saturday, December 13, 2014 1:45 PM To: cnc-list@cnc-list.com Subject: Stus-List 30 Mark II Gear Reduction Ratio Hello and Happy Holidays, My wife has let it be known that her Christmas list includes a new folding prop. She is tired of the poor backup performance of our old Martec 2 blade. Looking for some recommendations. I had a Gori on our Catalina and liked it, so I plan to contact them, and have also heard good things about Flexofold. Any others I should consider for a 30 MkII? 2nd question. Filling out the form for the Flexofold inquiry, they are asking for the gear reduction ratio. I had no plans to go down to the boat anytime real soon, does anybody know that number for a 1988 30 Mk II with a Yanmar 2GM20F? Thanks, Jim Reinardy 30 MkII “Firewater” Milwaukee, WI -------------------------------------------------------------------------------- _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com
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