Today's Message Index:
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0. 12:04 PM - Coming Soon - The List of Contributors - Please Make A Contribution Today! (Matt Dralle)
1. 09:23 AM - Lord -20 vs -28 vibration mounts (Lenny Iszak)
2. 10:07 AM - Re: Lord -20 vs -28 vibration mounts (Phillip Perry)
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| Subject: | Coming Soon - The List of Contributors - Please Make A Contribution |
Today!
Each year at the end of the List Fund Raiser, I post a message acknowledging everyone
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| Subject: | Lord -20 vs -28 vibration mounts |
I recently balanced my prop, and it's down to 0.01 IPS now but i still get some
vibration that makes the sun visors shake more than I like.
Turns out my VIP mounts have compressed some and there's a gap between the vibration
mount and the engine mount. Unfortunately I didn't take a picture but it
looks similar to this:
http://i60.tinypic.com/2vkxq2u.jpg
Has anyone had this issue before?
I was looking into getting new Lord mounts. Van's sells them for around $125 a
piece, they are J-3804-20.
Lord also has a J-3804-28 model with silicone filled spacers that supposedly help
startup and shutdown engine shaking. Sounds great, but the price is $246.95
at AircraftSpruce.
Is anyone using these 28s, and are they worth double the money?
Thanks,
Lenny
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=462015#462015
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| Subject: | Re: Lord -20 vs -28 vibration mounts |
We have a -8 with a 540 on it in the hangar now for annual. The mounts on it were
in need of replacement too.
We talked to Lord about this same question and they initially gave us replacement
part numbers with the updated elastomer and isn't realize it. We were confused
because the parts we had in hand were a different part number.
After placing another call to Lord, we realized that we had the old elastomer part
(and numbers). He said that, when they could, they're directing people
to the new elastomer because of longevity.
Apparently it doesn't break down as quickly with heat and chemicals; where the
rubber apparently does.
I have no real world experience with it beyond that. But did find the exercise
enlightening. Whether it plays out in the long run or not remains to be seen....
Phil
Sent from my iPhone
> On Nov 5, 2016, at 11:22 AM, Lenny Iszak <lenard@rapiddecision.com> wrote:
>
>
> I recently balanced my prop, and it's down to 0.01 IPS now but i still get some
vibration that makes the sun visors shake more than I like.
> Turns out my VIP mounts have compressed some and there's a gap between the vibration
mount and the engine mount. Unfortunately I didn't take a picture but
it looks similar to this:
>
> http://i60.tinypic.com/2vkxq2u.jpg
>
> Has anyone had this issue before?
> I was looking into getting new Lord mounts. Van's sells them for around $125
a piece, they are J-3804-20.
> Lord also has a J-3804-28 model with silicone filled spacers that supposedly
help startup and shutdown engine shaking. Sounds great, but the price is $246.95
at AircraftSpruce.
>
> Is anyone using these 28s, and are they worth double the money?
>
> Thanks,
> Lenny
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=462015#462015
>
>
>
>
>
>
>
>
>
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