Ok, so now you folks have me wondering - how would I determine if my motor
mounts are bad or getting ready to fail?
I have not noticed any untoward clunking or vibration, but I'm relatively new
to the boat...
Thanks! Bruce Whitmore
1994 C&C 37/40+ "Astralis"
(847) 404-5092 (mobile)
bwhitm...@sbcglobal.net
From: Josh Muckley via CnC-List <cnc-list@cnc-list.com>
To: cnc-list@cnc-list.com
Cc: Josh Muckley <muckl...@gmail.com>
Sent: Monday, July 9, 2018 10:33 PM
Subject: Re: Stus-List Engine mounts
Tom,
The original Yanmar mounts have a fatal flaw in that if the rubber degrades it
can tear and leave the engine un mounted. Some race regulations actually
require wire or chain ties to restrain the top and bottom parts should the
rubber fail. PYI makes a replacement mount which is positively captured so
that even if the rubber breaks down the mount can't separate. The leading
cause of the rubber to fail is fuel saturation. The PYI mounts are designed
with a metal shroud to shield the rubber.
I ran into Yanmar mounts that were soft enough that the thrust of the prop
drove the engine forward. There was enough movement that it opened up the
dripless shaft seal. Granted the seal was old and needed tightened or replaced
but it was still quite telling to see the fountain of water. I would guess
that the engine was shifting about 1/2". PYI calls the Yanmar mounts
"marshmallow mounts" and they are designed as such to minimize noise and
vibration. I can't sat that I'm upset by the noise and vibration of the PYI
mounts.
Josh Muckley S/V Sea Hawk 1989 C&C 37+Solomons, MD
On Mon, Jul 9, 2018, 8:49 PM Tom Buscaglia via CnC-List <cnc-list@cnc-list.com>
wrote:
I just made an appointment to get them all replaced in a few weeks. I found a
great machinists in Sidney BC. Superior work and currency exchange discount.
Tom BuscagliaS/V Alera 1990 C&C 37+/40Vashon WAP 206.463.9200C 305.409.3660
On Jul 9, 2018, at 5:04 PM, Ron Ricci <ron.ri...@1968.usna.com> wrote:
Two of mine were bad and I replaced all four. The parts were inexpensive and
the only issue I’ve had is corrosion on the steel parts. Regards,RonRon
RicciS/V PatriotC&C 37+Bristol, riron.ri...@1968.usna.com From: CnC-List
[mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Tom Buscaglia via CnC-List
Sent: Monday, July 9, 2018 12:47 PM
To: cnc-list@cnc-list.com
Cc: Tom Buscaglia
Subject: Stus-List Engine mounts One of my engine mounts on my Yanmar 3HM35F is
hopelessly seized. As they are over 25 years old anyway, I’m wondering if I
should just replace the one that’s messed up or all 4. Do these things go have
an effective life? Tom BuscagliaS/V Alera 1990 C&C 37+/40Vashon WAP
206.463.9200C 305.409.3660
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_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
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_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
to send contribution -- https://www.paypal.me/stumurray
