Today's Message Index:
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1. 01:51 AM - Spitfire replica prop for M14 (ALEXGTPROPELLERS)
2. 04:42 AM - Re: Engine mount rubbers - YAK-50 (JL2A)
3. 09:31 AM - Re: Re: Engine mount rubbers - YAK-50 (George S. Coy)
Message 1
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| Subject: | Spitfire replica prop for M14 |
Hello all,
I'm proud to inform you that 2 new sets of M14 / Spitfire replica blades are nearly
completed. The one with RAF finishing will be send to AUS soon and last set
is only primered and ready be finished as per customer request.Blades are suitable
with V530-D hub and fitts 20" spinner.
If you wish to fly a really Warbird prop on your M14 engine please feel free to
ask .
We got a special sale policy for this new high performance propeller.
INFO@GT-PROPELLERS.COM
best regards Alex Tonini
Pics here :https://www.facebook.com/yakpropellerexpert/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=471511#471511
Message 2
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| Subject: | Re: Engine mount rubbers - YAK-50 |
We have experienced poor longevity from the rubber mounts even in the CJ6. We installed
a set that was made from a type of urethane that is still soft enough
yet does not perish when constantly soaked in oil.
Since then we have installed 5-6 sets of the red urethane mounts, the first set
are still fine, something like 1000 hours and 4-5 years later.
I'm just waiting on the spec sheet of the material to send to Doug Sapp. A set
made here in Australia is about $300 or thereabouts
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=471514#471514
Message 3
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| Subject: | Re: Engine mount rubbers - YAK-50 |
Hey Guys, I am not sure where the problem is with the good old rubber
mounts. Worked pretty well for the last 60 years or so.
I suspect many or the problems are caused by self-induced.
First, rubber has a shelf life as well as a use life. If you are installing
"New" rubber mounts that were produced in 1994, then you will have problems.
Second, the M14P instillation calls for 14 of 506400-05 mounts and 2 of
the 5064000-35 mount. (the -35 parts go behind the magnetos and have a
slightly smaller metal bonded face to prevent interference with the
magnetos). It also calls for a specific washer (50640002) by the mount face
that must be installed with the curved face to the mount. There is a second
oblong washer (506400-03) under other end of the mount assembly.
Third, there is a specific dimension (34.6 mm) between the face of the
motor mount and the top of the -35 washer under the nut end of the assembly.
The nuts are tightened to a dimension , not a specific torque. Over
tightening and or under tightening will cause problems as well.
We offer new rubber mounts made within the last year, as wells the proper
washers. These mount sets are priced competitively.
I am not a big fan of the DRE ( Direct Rectal Extraction) engineering
method, so tend to stick with the original system that has worked well.
You can find an instillation diagram with all the part numbers on our
website.
George Coy
MotorstarNA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
802-868-6632 Fax
george.coy@gmail.com
http://motorstarna.com/
SKYPE george.coy
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of JL2A
Sent: Saturday, August 05, 2017 7:42 AM
Subject: Yak-List: Re: Engine mount rubbers - YAK-50
We have experienced poor longevity from the rubber mounts even in the CJ6.
We installed a set that was made from a type of urethane that is still soft
enough yet does not perish when constantly soaked in oil.
Since then we have installed 5-6 sets of the red urethane mounts, the first
set are still fine, something like 1000 hours and 4-5 years later.
I'm just waiting on the spec sheet of the material to send to Doug Sapp. A
set made here in Australia is about $300 or thereabouts
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=471514#471514
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