Re: [Cal_Boats] [All]Re: Rudder Question

Hmmmmmm . . . When splashed and they moved the boat off of the slings you didn't see anything unususal? Engine mounts are okay, no new vibrations or noise from that area? Did you get a new prop? Any abnormally low tides where the rudder could have sat on the bottom for a period of time or a high tide where it may have drifted back into a piling? (my rudder extends aft of the transom so it is possible on my boat) Could quadrant have slipped on the rudder post? Hope you find the issue - Paul

*maybe the prop being cleaned is the culprit and when it was dirty the problem was somewhat masked as you said that it had a little pull before and now it is more pronounced msome boats just pull under power could be how far the prop is extended from the cuttlas bearing or an offset in the way the boat was molded or a number of other issues but it may have been there all along and not noticed till the hull and prop were clean * On Fri, Jul 8, 2011 at 12:16 PM, <pw… [at] aol.com> wrote: > ** > > > Hmmmmmm . . . > > When splashed and they moved the boat off of the slings you didn't see > anything unususal? > Engine mounts are okay, no new vibrations or noise from that area? > Did you get a new prop? > Any abnormally low tides where the rudder could have sat on the bottom for > a period of time or a high tide where it may have drifted back into a > piling? (my rudder extends aft of the transom so it is possible on my boat) > Could quadrant have slipped on the rudder post? > > Hope you find the issue - > > Paul > > > > >

bingo To: Ca… [at] yahoogroups.com From: kq… [at] gmail.com Date: Fri, 8 Jul 2011 12:24:29 -0500 Subject: Re: [Cal_Boats] [All]Re: Rudder Question maybe the prop being cleaned is the culprit and when it was dirty the problem was somewhat masked as you said that it had a little pull before and now it is more pronounced msome boats just pull under power could be how far the prop is extended from the cuttlas bearing or an offset in the way the boat was molded or a number of other issues but it may have been there all along and not noticed till the hull and prop were clean On Fri, Jul 8, 2011 at 12:16 PM, <pw… [at] aol.com> wrote: Hmmmmmm . . . When splashed and they moved the boat off of the slings you didn't see anything unususal? Engine mounts are okay, no new vibrations or noise from that area? Did you get a new prop? Any abnormally low tides where the rudder could have sat on the bottom for a period of time or a high tide where it may have drifted back into a piling? (my rudder extends aft of the transom so it is possible on my boat) Could quadrant have slipped on the rudder post? Hope you find the issue - Paul

good questions, maybe the bottom was so dirty and growth covered it affected the flow of water from the prop? Helen From: "pw… [at] aol.com" <pw… [at] aol.com> To: Ca… [at] yahoogroups.com Sent: Fri, July 8, 2011 10:16:02 AM Subject: Re: [Cal_Boats] [All]Re: Rudder Question Hmmmmmm . . . When splashed and they moved the boat off of the slings you didn't see anything unususal? Engine mounts are okay, no new vibrations or noise from that area? Did you get a new prop? Any abnormally low tides where the rudder could have sat on the bottom for a period of time or a high tide where it may have drifted back into a piling? (my rudder extends aft of the transom so it is possible on my boat) Could quadrant have slipped on the rudder post? Hope you find the issue - Paul

Hello all (Joe) I have a Yanmar 3HM35F with the original stock transmission.... should know the name, but have all info on the boat. Anyway, engine runs good, but have always had (6 years) a harmonic humm that come from the transmission.... around 1200 to 1,800 rpm's it is at its glory, then quiets a bit at around 2,200 rpms. I have checked the fliud and all is ok. And like I said the boat motors well... Is this reason for concern?? Thanks! Greg

Check the prop-engine alignment. On Mon, Jul 11, 2011 at 5:29 PM, <Sv… [at] optonline.net> wrote: > ** > > > Hello all (Joe) > > I have a Yanmar 3HM35F with the original stock transmission.... should know > the name, but have all info on the boat. Anyway, engine runs good, but have > always had (6 years) a harmonic humm that come from the transmission.... > around 1200 to 1,800 rpm's it is at its glory, then quiets a bit at around > 2,200 rpms. I have checked the fliud and all is ok. And like I said the boat > motors well... > > Is this reason for concern?? > > Thanks! > Greg > > >

And when you check the alignment, check for excessive shaft deflection. You always have a little bit but you'll be able to tell if it's sloppy. This may indicate a worn cutlass bearing. Mike M. On 7/11/2011 9:19 PM, Allen Edwards wrote: > > > Check the prop-engine alignment. > > On Mon, Jul 11, 2011 at 5:29 PM, <Sv… [at] optonline.net > <mailto:Sv… [at] optonline.net>> wrote: > > Hello all (Joe) > I have a Yanmar 3HM35F with the original stock transmission.... > should know the name, but have all info on the boat. Anyway, > engine runs good, but have always had (6 years) a harmonic humm > that come from the transmission.... around 1200 to 1,800 rpm's it > is at its glory, then quiets a bit at around 2,200 rpms. I have > checked the fliud and all is ok. And like I said the boat motors > well... > Is this reason for concern?? > Thanks! > Greg > > > > >

Hi Greg - We have discovered that a lot of the noises you describe actually are caused by the prop. [ "singing prop" is the term ] The noise can be isolated by using a metal rod as a stethoscope. First touch the rod to the trans, with the other end to your ear. Now do the same to the hull near the prop. Usually, if the noise is louder at the prop, the prop is to blame. You can check the theory by substituting a different prop. Do you have "Spurs" installed? These sing all the time. If the problem is the transmission, we usually have a replacement in stock, rebuilt, with warranty. *Joe DeMers - owner* Sound Marine Diesel LLC SoundMarineDiesel.com <http://www.soundmarinediesel.com/> *phone & fax (860) 666-2184* On 7/11/2011 8:29 PM, Sv… [at] optonline.net wrote: > > > Hello all (Joe) > I have a Yanmar 3HM35F with the original stock transmission.... should > know the name, but have all info on the boat. Anyway, engine runs > good, but have always had (6 years) a harmonic humm that come from the > transmission.... around 1200 to 1,800 rpm's it is at its glory, then > quiets a bit at around 2,200 rpms. I have checked the fliud and all is > ok. And like I said the boat motors well... > Is this reason for concern?? > Thanks! > Greg > > > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.901 / Virus Database: 271.1.1/3759 - Release Date: 07/11/11 14:35:00 > -- *Joe DeMers - owner* Sound Marine Diesel LLC SoundMarineDiesel.com <http://www.soundmarinediesel.com/> *phone & fax (860) 666-2184*

http://www.harborfreight.com/automotive-motorcycle/diagnostics/mechanics-stethoscope-41966.html On Tue, Jul 12, 2011 at 5:43 AM, Joe DeMers <je… [at] mindspring.com> wrote: > ** > > > ** Hi Greg - > > We have discovered that a lot of the noises you describe actually are > caused by the prop. [ "singing prop" is the term ] > > The noise can be isolated by using a metal rod as a stethoscope. First > touch the rod to the trans, with the other end to your ear. Now do the same > to the hull near the prop. Usually, if the noise is louder at the prop, the > prop is to blame. You can check the theory by substituting a different prop. > > > Do you have "Spurs" installed? These sing all the time. > > > If the problem is the transmission, we usually have a replacement in stock, > rebuilt, with warranty. > > *Joe DeMers - owner* > > Sound Marine Diesel LLC > SoundMarineDiesel.com <http://www.soundmarinediesel.com/> > > *phone & fax (860) 666-2184* > > > > > On 7/11/2011 8:29 PM, Sv… [at] optonline.net wrote: > > Hello all (Joe) > > I have a Yanmar 3HM35F with the original stock transmission.... should know > the name, but have all info on the boat. Anyway, engine runs good, but have > always had (6 years) a harmonic humm that come from the transmission.... > around 1200 to 1,800 rpm's it is at its glory, then quiets a bit at around > 2,200 rpms. I have checked the fliud and all is ok. And like I said the boat > motors well... > > Is this reason for concern?? > > Thanks! > Greg > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.901 / Virus Database: 271.1.1/3759 - Release Date: 07/11/11 14:35:00 > > > > -- > > *Joe DeMers - owner* > > Sound Marine Diesel LLC > SoundMarineDiesel.com <http://www.soundmarinediesel.com/> > > *phone & fax (860) 666-2184* > > >

Thanks Joe and others!!!!!!! In regards to the alignment all is good with this.... shaft swins nicely with little vibration. Cutlass is 4 years old and last inspection proved it to be in good condition tight on the shaft. I will check where the singing is coming from.... I suspect the prop (optomistic with transmission) as the boat moves good and powerful. My prop is a three blade fixed... want to eventually move up to a feathering prop but that will be another year... Thanks all for the resonses!! Greg P36-2 s/v Four the Soul From: Joe DeMers Date: Tuesday, July 12, 2011 8:43 am Subject: Re: [Cal_Boats] Transmission.... Joe are you out there To: Ca… [at] yahoogroups.com > Hi Greg - > > We have discovered that a lot of the noises you describe > actually are > caused by the prop. [ "singing prop" is the term ] > > The noise can be isolated by using a metal rod as a stethoscope. > First > touch the rod to the trans, with the other end to your ear. Now > do the > same to the hull near the prop. Usually, if the noise is louder > at the > prop, the prop is to blame. You can check the theory by > substituting a > different prop. > > Do you have "Spurs" installed? These sing all the time. > > > If the problem is the transmission, we usually have a > replacement in > stock, rebuilt, with warranty. > > *Joe DeMers - owner* > > Sound Marine Diesel LLC > > SoundMarineDiesel.com > > *phone & fax (860) 666-2184* > > > > > > On 7/11/2011 8:29 PM, Sv… [at] optonline.net wrote: > > > > > > Hello all (Joe) > > I have a Yanmar 3HM35F with the original stock > transmission.... should > > know the name, but have all info on the boat. Anyway, engine > runs > > good, but have always had (6 years) a harmonic humm that come > from the > > transmission.... around 1200 to 1,800 rpm's it is at its > glory, then > > quiets a bit at around 2,200 rpms. I have checked the fliud > and all is > > ok. And like I said the boat motors well... > > Is this reason for concern?? > > Thanks! > > Greg > > > > > > > > > > > > > > > > No virus found in this incoming message. > > Checked by AVG - www.avg.com > > Version: 9.0.901 / Virus Database: 271.1.1/3759 - Release > Date: 07/11/11 14:35:00 > > > > -- > > *Joe DeMers - owner* > > Sound Marine Diesel LLC > > SoundMarineDiesel.com > > *phone & fax (860) 666-2184* > >

Thanks Allen; exactly what I need to see if I can salvage the A-4. /ch On Tue, Jul 12, 2011 at 10:20 AM, Allen Edwards < al… [at] paloaltophoto.com> wrote: > > > > http://www.harborfreight.com/automotive-motorcycle/diagnostics/mechanics-stethoscope-41966.html >