I recently sheared off the bolts connecting the drive flange to the drive shaft coupling, all due to a sheet getting caught in the prop. I am going to add a flexible coupling spacer to dampen vibration and shock to the engine. Does anyonme know the flange diameter of the MD7a Volvo engine offhand. The boat is about 3 hours away from home and I'd like to order the coupling this week.
Thanks,
GAC
gcamargo@mindspring.com
Drive shaft flange
Moderator: Jim Walsh
Re: Drive shaft flange
Be sure to measure the extra thickness of the spacer and contemplate what extending the shaft and prop will do to prop clearance. I had to abort the same installation on a Globe drive saver on my CD-27 because the prop would have bit into the rudder when it was fully deflected. Fortunately I was on poppets and could test this. http://www.globerubberworks.com/. They were able to tell me which product fit my 2GM.Gene A. Camargo wrote: I recently sheared off the bolts connecting the drive flange to the drive shaft coupling, all due to a sheet getting caught in the prop. I am going to add a flexible coupling spacer to dampen vibration and shock to the engine. Does anyonme know the flange diameter of the MD7a Volvo engine offhand. The boat is about 3 hours away from home and I'd like to order the coupling this week.
Thanks,
GAC
Remedy would have been to pull the shaft and have it shortened, re-install the flange, maybe packing, etc. so I put it off until the fall.
yahrling@cybertours.com