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I think my last post on the subject of my transmission failure was that the
re-built transmission and new damper plate were installed and the gear
backlash noise in the V-draw is negligible,.
Because of that, it is evident to me that the damper plate was DOA from Mack
Boring, I went back to my installer to see if I could get some
compensation for the early failure of the transmission.
Not surprisingly, Mack Boring declined to provide any consideration even
though the evidence (MO) was that the damper plate failed on delivery, well
within the warranty period. However, my installer – Zahnisher’s Yachting
Center in Solomons, MD – did provide a significant level of compensation
even though they (IMO) were not at fault and they did not admit to any
responsibility for the transmission failure.
So my recommendation is that if you need service from a responsible yard in
the Chesapeake Bay, consider Zahniser’s as one of your first choices.
Conversely, if you are choosing a product supported by Mark Boring (Yanmar
being the prominent one), my recommendation is to look elsewhere.That said, I am sympathetic to the warranty issues of providers of
mechanical devices such as engines and transmissions. Once their products
are delivered to a consumer they lose total control of how that product is
operated. For a claim oiutside of the warranty period (such as they believe
is mine) it is prohibitively expensive to establish whether product failure
or owner abuse was the cause of a failure. Hence the very brief warranty
periods for equipment that should provide many years of service. However,
in my case, I think I should have received some consideration that there
was ample evidence that the damper plate provided by Mack Boring was either
DOA or failed when the engine was initially placed in gear (well within the
Warranty period). The backlash noise was very loud from that point until
the damper plate was replaced after the transmission was re-built. Although
not a definitive proof, I believe it should have made Mack Boring at least
consider that their product might be at fault. if they were not willing to
admit that the transmission failure was due to the damper plate failure, at
least admit that the product they delivered (i.e., the damper plate) failed
during the warranty period. I would have accepted compensation for the
replacement of the damper plate, but no such offer was forthcoming from
Mack Boring.
FWIW, I might have thought my installer should have recognized this problem
during the installation and fixed it then. However, I had more than one
boat yard (all Mack Boring/Yanmar dealers) investigate the gear backlash
problem, and they all reached the same conclusion that it was just a
normal, low RPM, gear backlash Walters V-drive characteristic. So even if
this problem was reported to Mack Boring before the transmission failure, I
believe they would have reached the same reasonable conclusion – this is
what happens with a Walter V-Drive. So my issue with Mack Boring is not that
their authorized dealers and service reps didn’t find the problem before the
transmission failed, but that once the problem was finally identified they
could care less (unless I reported the problem within the warranty period).Bottom Line: Zahniser’s Yachting Center are the good guys. Mack
Boring/Yanmar maybe not such good guys.—
Regards,
John Stevenson
http://www.svsarah.comI guess I should also state that I have been a customer of Zahniser’s for
over 35 years, so maybe that counts for something. Mack Boring still
pisses me off.
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Well said! We could use more of that kind of human feedback.
Tor
Silverheels, P-424 #17
http://www.silverheels.us
Quote:
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I’m not impressed with MacK Boring either. When I ordered my Yanmar, I ordered a spacer plate for the bell housing to mate up with the BW transmission. They quoted and sold a spacer that was too thin. I had no way to know how thick the spacer should be and trusted them to quote the right parts. I ended up buying another spacer, only $120, but it ticked me off because it was their error.
Regards
Rich
Original Message
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If you’re getting some rattle at low speeds don’t worry. If whine at high
speeds, go to gear oil instead of 30wt. Like 50wt or even 80 wt.Remember, these drives are usually hooked up to big noisy gasoline engines
so you don’t hear them. Also, those engines idle faster than diesels.Bob
On Fri, Feb 18, 2011 at 9:04 AM, Alan wrote:
Quote:What worries me now, is that the noise I am getting is from the VDrive,
but because of a bad NEW damper plate.
Could be a B***** to replace now that I have engine back in….
alan— On Fri, 2/18/11, wrote:
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Alan,
Pulling the transmission does not appear to be a lot of fun, but maybe not
that big a deal. That said by the guy whose only experience with the task
is watching a couple guys remove mine and then re-install it. It is a two
person job though. It was about 1/2 hour each way, off and on. Just don’t
drop that sucker in the bilge.On Fri, Feb 18, 2011 at 9:04 AM, Alan wrote:
Quote:What worries me now, is that the noise I am getting is from the VDrive,
but because of a bad NEW damper plate.
Could be a B***** to replace now that I have engine back in….
alan— On Fri, 2/18/11, wrote:
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With the W58 and the way it’s tucked in there. I would probably just a block chain fall to lift up the back end of the engine enough to be able to slide the transmission off…… maybe a days work figuring I would not have to disconnect too much.
There is not that much to the damper… a plate and a few springs. I wonder if the springs are just to heavy and not allowing it to ” damper”
alan— On Fri, 2/18/11, John Stevenson wrote:
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I’m surprised that you will have to lift the engine to remove the
transmission. It certainly was not required with my Yanmar. It is the same
Velvet Drive as I believe are on most W58s. The replacement plate purchased
from Mack Boring does not have springs. Here are a couple of pictures.http://www.svsarah.com/Sarah/Images/OldPlatevrsNewPlate2.JPG
http://www.svsarah.com/Sarah/Images/NewPlatInstalled.JPGThe first pictures is of the new plate (foreground) and the old plate
(background). The second picture is the new damper plate installed on the
engine. This looks like an R&D (PYI company) plate, and checking the Mack
Boring website it appears they are now specing R&D dampers and couplers.On Fri, Feb 18, 2011 at 9:36 AM, Alan wrote:
Quote:With the W58 and the way it’s tucked in there. I would probably just a
block chain fall to lift up the back end of the engine enough to be able to
slide the transmission off…… maybe a days work figuring I would not have
to disconnect too much.
There is not that much to the damper… a plate and a few springs. I wonder
if the springs are just to heavy and not allowing it to ” damper”
alan— On Fri, 2/18/11, John Stevenson wrote:
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