2 questions

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I have the upgraded Volvo Penta 2040 engine with the standard non folding prop.  My engine manual states that I should not have the boat in gear while sailing and when the motor is not in use.
When I am sailing with decent speed, I get vibration from the prop spinning since it is in neutral and not locked in place by being in gear.   The vibration stops when I put the boat in gear.
Anyone know why the Volvo manual says not to do this?   Others have this issue?
One other unrelated question.   While sailing this weekend, something fell from somwhere high on the standing rigging.  Not sure exactly where it came from or what it was.   I happened to be below deck when it fell, but I was told that it appeared to be a very thin silver or white metal/aluminum strip, about 2-3 feet long.   About an inch or two wide and as thin as a credit card.   It bounced off the deck into the water and sunk.  While I have not yet taken a ride up the mast in my bosuns chair to explore, I cannot figure out what it was or where it came from.  Any ideas?
Thanks.  Jon

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
371 Hull # 120 Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 21 January 2004 Location: United States Status: Offline Points: 33	Post Options Post Reply Quote 371 Hull # 120 Report Post Thanks(0) Quote Reply Topic: 2 questions Posted: 27 September 2004 at 15:37
	I have the upgraded Volvo Penta 2040 engine with the standard non folding prop. My engine manual states that I should not have the boat in gear while sailing and when the motor is not in use. When I am sailing with decent speed, I get vibration from the prop spinning since it is in neutral and not locked in place by being in gear. The vibration stops when I put the boat in gear. Anyone know why the Volvo manual says not to do this? Others have this issue? One other unrelated question. While sailing this weekend, something fell from somwhere high on the standing rigging. Not sure exactly where it came from or what it was. I happened to be below deck when it fell, but I was told that it appeared to be a very thin silver or white metal/aluminum strip, about 2-3 feet long. About an inch or two wide and as thin as a credit card. It bounced off the deck into the water and sunk. While I have not yet taken a ride up the mast in my bosuns chair to explore, I cannot figure out what it was or where it came from. Any ideas? Thanks. Jon

Eternal Flame Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 15 December 2003 Location: Netherlands Status: Offline Points: 253	Post Options Post Reply Quote Eternal Flame Report Post Thanks(0) Quote Reply Posted: 27 September 2004 at 15:51
	Hi Jon, The strip...... maybe you have lost the furling "batten" of your headsail. This is mostly a alloysteel thin plate which is used so you can furl the headsail. I lost one the same way... Check you sail"batten"bags. And for the vibration...indeed with my old Hanse (292) I had the same problem. I put my gear in place. Good luck....or chance your prop into a nice folding one Happy sailing! Frank - Eternal Flame
	Happy Sailing you all!

Stella*Nova Members Profile Send Private Message Find Members Posts Add to Buddy List Vice Admiral Joined: 25 January 2004 Location: Lelystad / NL Status: Offline Points: 776	Post Options Post Reply Quote Stella*Nova Report Post Thanks(0) Quote Reply Posted: 29 September 2004 at 16:52
	Jon, at my last ship I had a MD 2020 Volvo engine. I remember to read exactly the opposite in the manual. While sailing the gear has to put in. I often forgot to do that and so I know the noise. By the way, in my Hanse there is installed the new Yanmar 3YM30. When I forget to gear while sailing I have the same noise. After put in the gear, (now) the prop folds and its wonderful quiet. The other issue: As my last ship was new, some day I heard a "pling" whilst sailing. On deck I found a small metal thing. I was concerned and asked another boat owner. He laughed and told me that it was the back-pin of a rivet. You wrote, your lost thing was 2-3 feet long, do you really mean feet or inches? Kind Regards from Cologne Ralf

371 Hull # 120 Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 21 January 2004 Location: United States Status: Offline Points: 33	Post Options Post Reply Quote 371 Hull # 120 Report Post Thanks(0) Quote Reply Posted: 29 September 2004 at 20:08
	Ralf and Frank: As to the engine issue, the Volvo Penta operator's manual for the MD 2010, 2020, 2030 and 2040 states on pg 21 (for those that may want to see this in the manual) that "When sailing, if the boat has a fixed propeller the control level must be in the neutral position when sailing. If the boat has a folding prop the control lever must be in the astern position." When I take out of neutral and put in gear while sailing, my vibration stops, but the manual says not to do this, so not sure which is worse. I think Frank has the right idea, buy a folding prop..... As to the other issue, the object that bounced overboard was 2-3 feet long, not inches. Again, I think Frank got it, probably a batten from the self tacker. I have not been at my boat this week but will check for the missing batten this weekend. Thanks for the help. Regards. Jon

iemand Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 13 February 2004 Location: Germany Status: Offline Points: 1099	Post Options Post Reply Quote iemand Report Post Thanks(0) Quote Reply Posted: 30 September 2004 at 08:10
	I have a Hanse 312 with a Yanmar 2GM20. While sailing I sometimes have the problem that I'm not able to put in the astern gear. than I use the forward gear. In my oponion that's the same for the saildrive:just stop turning! What do you think? Kind regards from Berlin, Thomas

Martijn Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 06 May 2004 Location: Netherlands Status: Offline Points: 118	Post Options Post Reply Quote Martijn Report Post Thanks(0) Quote Reply Posted: 30 September 2004 at 10:59
	Hello Thomas, I think your right when you have a fixed propellor. On my other boat it was the same. I had a fixed propellor and put in the forward gear while sailing. Only that was no saildrive. But It is strange you can not put the gear in astern while sailing. But in my opinion it works bothways. Now I have a 3 blade folding propellor and now I must put the gear in astern position so the prop is folding. According the books from Volvo. greetings, Martijn "NO FEAR" Edited by Martijn

franko Members Profile Send Private Message Find Members Posts Add to Buddy List Rear Admiral Joined: 24 June 2004 Location: Sweden Status: Offline Points: 597	Post Options Post Reply Quote franko Report Post Thanks(0) Quote Reply Posted: 30 September 2004 at 21:07
	Hello All, As a matter of interest, a rotating propeller creates more drag than a stationary one (only when sailing of course) This because a rotating prop presents a 'disc' to the water flow over it. (i.e. greater projected surface area) Now, does anyone of you know why Volvo say to leave the gear in neutral when sailing? I always select reverse myself. What folding props do y'all recommend for the VP MD2020? Cheers. Pic attached of my boat earlier today having her bum washed - taken with my new toy - Sony Ericsson camera phone.

Martijn Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 06 May 2004 Location: Netherlands Status: Offline Points: 118	Post Options Post Reply Quote Martijn Report Post Thanks(0) Quote Reply Posted: 30 September 2004 at 22:56
	Hello Franko, Well I think if you want to know it for sure which foldingpropellor you should use please ask your Volvodealer about it. I have a Hanse 341 with a Volvo 2030. In combination with a 3 blade folding propellor. I am very happy with this combination because You have 33% more power compared to a 2-blade foldingpropellor. That is very nice in harbours. Your boat responds almost imediately like a fixed propellor. Also backwards. But I do not know if it work out the same way with the Volvo 2020. But it is certaintly possible because Hanse do offers this in their optionlist. It will cost around the 1500 euro's or something. But I thought the standard engine was 30HP for the 371??? greetings, Martijn "NO FEAR" Edited by Martijn

Stella*Nova Members Profile Send Private Message Find Members Posts Add to Buddy List Vice Admiral Joined: 25 January 2004 Location: Lelystad / NL Status: Offline Points: 776	Post Options Post Reply Quote Stella*Nova Report Post Thanks(0) Quote Reply Posted: 01 October 2004 at 10:20
	Franko, at my 341 there is istalled a 3 Blade folding prop. I'm very happy with that. The difficuties older folding props have are not shown at my model. Its a Flex-O-Fold and it has a very good reaction when stopping in the harbour. When driving with engine you don't hear any prop noises like fixed props sometimes have.

Dancin' Fool Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 26 July 2004 Location: Netherlands Status: Offline Points: 41	Post Options Post Reply Quote Dancin' Fool Report Post Thanks(0) Quote Reply Posted: 01 October 2004 at 10:22
	Hello all, The story about the drag which is produced by a rotating prop is not completally accurate. Nature has it's way's and will try to go the direction with the least resistance. Naturally there is a moment (speed/revolutions) that the drag caused by the rotation of the propellor will dramatically increase. So it can be interesting to check out you boat speed in different conditions. Or as Frank already sujested, mount a foldingprop. Michael



Welcome to myHanse.com the forum for Hanse Yachts owners throughout the world.