Mike, I will get back to you tonight with the price of my Flexofold 3 blades. It was not chead and i remebered i had to pay a ridiculously high custom clearance fee to UPS, I hate them since. I was convinced to go 3 blades after reading a lot about prop balance and vibration. It is more expensive, but i went for it and i am very happy. I have less vibration than with my old fixed two blades. It stops the boat quickly in reverse with minimal prop walk and i achieve target speed at low rpm, wich is good on fuel but i know it can lead to carbon buildup. To remediate that i do push the engine sometime but over 2800- 2900 the engine is loaded and the black smoke comes out. So instead i push it in neutral at the dock. I remember some recommandations from Yanmar on this. something like: high revs for a moment to burn everything and then iddle to cool down the engine and then shut it off. I do still think that my prop is bit too much for my small engine. And if i had to buy another i might go with a two blades instead because everybody seems satisfied with it. My prop would be perfect for your 3 GMF! ;) Bruno.
> To: cnc-list@cnc-list.com > Date: Thu, 9 Jun 2016 12:47:34 +0000 > Subject: Stus-List Gear, shaft positin, transmission, folding ---- RE: (no > subject) > From: cnc-list@cnc-list.com > CC: mike.h...@impgroup.com > > The two things I take away from this are that 1. YES - a geared folding prop > is much better than a floppy Martec folding prop and that 2. a Martec folding > prop should have shaft aligned such that the blades are horizontal so that > they stay folded esp in light wind. > > So if the shaft is aligned that likely means not in neutral. Back to > original argument > > Persistence has an oversized engine. 3GM30F where all C&C33-2 and Frers 33 > come stock with 2GM20F. Behind the transmission there is BARELY sufficient > distance on shaft for the dripless shaft seal. The coupling would have to be > marked in order to know the shaft was aligned. This is all well and good but > which crew member am I going to convince to climb inside the cockpit locker > (after removing any contents), unfasten the fabric separator between locker > and engine compartment, wiggle in a contorted position to get access to the > coupler and shaft? It is theoretically possible for us to align shaft but in > practicality is impossible. > > Therefore the only real conclusion is to lose the Martec and obtain a > Flex-O-Fold > > Mike > Persistence > Halifax > > -----Original Message----- > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jake > Brodersen via CnC-List > Sent: Wednesday, June 08, 2016 7:46 PM > To: cnc-list@cnc-list.com > Cc: Jake Brodersen > Subject: Re: Stus-List (no subject) > > Tom, > > I put mine in reverse to stop the prop, then position the shaft so the blades > are folded. Then I put it back into reverse to lock them in place. > It's easy, especially if you mark the shaft position when the boat is out of > the water. > > Jake > > > Jake Brodersen > C&C 35 Mk-III "Midnight Mistress" > Hampton VA > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated!
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