Just read the advisory note. Interesting. Other transmissions don't like the shaft turning when the engine is off as the tx oil pump runs off the input shaft and lubrication stops when the engine stops.
Rich Rßdë On 2012-09-06, at 13:05, Joel Aronson <[email protected]> wrote: With a fixed prop you are putting pressure on the bearings to turn the shaft the other way. I would think that you are also increasing drag. Didn't seem like a big deal to me until I found out it voids the warranty. Either Yanmar is looking to reduce warranty liability or there is really something there. Joel On Thu, Sep 6, 2012 at 12:00 PM, Rich Knowles <[email protected]> wrote: Why can you not sail with the gear box in reverse? I e done that for years to keep the shaft from spinning when underway and trashing the bearings in the tx. Rich On 2012-09-06, at 12:38, Joel Aronson <[email protected]> wrote: My Martec will vibrate if it is not in the right position. I put the gearbox into reverse for a second or two and the vibration stops. I assume it is in the feathered position. (Don't sail with the gearbox in reverse.) Joel 35/3 The Office Annapolis On Thu, Sep 6, 2012 at 11:31 AM, Gary Nylander <[email protected]> wrote: Logically, if you are in light wind conditions, the drag of a droopy blade could be a consideration. If you align the prop so the blades are in a horizontal position, it should fold back and reduce drag, but.... If you race on SF Bay, no problem, the prop will fold in that 20 knots. That is one reason I went Flex. Gary Nylander ----- Original Message ----- From: "Bob Moriarty" <[email protected]> To: "cnc-list" <[email protected]> Sent: Thursday, September 06, 2012 11:26 AM Subject: Stus-List Martec Folding Prop Operation >From the Martec website: <QUOTE> Racing Manually rotate the shaft to the best sailing position, where the previously marked pivot pin is vertical. </QUOTE> This sounds like a pain, especially singlehanded. If the shaft does not get oriented properly, do the blades produce a horrible drag, or just a "not quite minimal" drag? Bob Moriarty Ox 33-1 Jax, FL _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com [email protected] _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com [email protected] -- Joel 301 541 8551 _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com [email protected] _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com [email protected] -- Joel 301 541 8551 _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com [email protected]
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