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Fred Klein
Joined: 26 Mar 2012
Posts: 503
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 Posted: Sun Mar 23, 2014 10:24 pm Post subject: Instrument panel bolts |
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| Quote: | --> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>
Gidday,
I’m stuck and was hoping someone could resurrect my momentum. I need to know how long to make my instrument panel studs to accommodate a washer, possibly conical, and probably only on the cockpit side, as the other side should use either metal or phenolic washers. This means I am having permanent studs out the back of the panel, going through the firewall, and being secured on the engine compartment side of the firewall. |
Tony…to get the benefit of vibration isolation, the SS 1/4” dia. McMaster-Carr vibration damping sandwich mounts do the trick…much better IMO than any kind of a thru bolt...see cat. pg.:
http://www.mcmaster.com/#vibration-damping-sandwich-mounts/=r882gh
...photo below shows the male threaded stud each side, and there is also a male / female style, 3 of which I used on the picnic tray STBD side along w/ SS machine screws and finish washers.
I found the 1/2” long studs to be just long enough to penetrate the firewall and to have room for a washer and stiff nut. Although a stickler will notice that I lack the requisite visible threads beyond the face of the nut, I do not consider that to be critical in this instance.
Fred
[img]cid:27B51E29-A9CE-43FB-B5F4-14D977691866[/img]
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richard collings
Joined: 08 Jul 2011
Posts: 73
Location: warwickshire england
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| Posted: Mon Mar 24, 2014 12:41 pm Post subject: Instrument panel bolts |
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Hi
I used metallastic rubber bushes to mount the whole unit onto the fire wall having first made an internal mounting flange on the instrument panel module. I reduced the original outer flange to about 10mm and once mounted in place the thickness of the rubber of the metalastic bush gave me an air gap for ventilation . To reduce the modules movement I added one bush as a support from the top of the wheel tunnel just in front of the throttle quadrant.
best of luck
Richard
From: Fred Klein
Sent: Monday, March 24, 2014 6:22 AM
To: europa-list(at)matronics.com (europa-list(at)matronics.com)
Subject: Instrument panel bolts
| Quote: | --> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>
Gidday,
I’m stuck and was hoping someone could resurrect my momentum. I need to know how long to make my instrument panel studs to accommodate a washer, possibly conical, and probably only on the cockpit side, as the other side should use either metal or phenolic washers. This means I am having permanent studs out the back of the panel, going through the firewall, and being secured on the engine compartment side of the firewall. |
Tony…to get the benefit of vibration isolation, the SS 1/4” dia. McMaster-Carr vibration damping sandwich mounts do the trick…much better IMO than any kind of a thru bolt...see cat. pg.:
http://www.mcmaster.com/#vibration-damping-sandwich-mounts/=r882gh
...photo below shows the male threaded stud each side, and there is also a male / female style, 3 of which I used on the picnic tray STBD side along w/ SS machine screws and finish washers.
I found the 1/2” long studs to be just long enough to penetrate the firewall and to have room for a washer and stiff nut. Although a stickler will notice that I lack the requisite visible threads beyond the face of the nut, I do not consider that to be critical in this instance.
Fred
[img]cid:D39B14AE35AF4270B6A915BF086E9DAE(at)RichardHP[/img]
DSCN0961.JPG
[img]cid:BED47A1F04064E65A81F8D04198781E2(at)RichardHP[/img]
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[img]cid:18040187CF854003A190DFE9B949F7FA(at)RichardHP[/img]
[img]cid:0758E86A25C54507836CBBCDBDE8E74E(at)RichardHP[/img]
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| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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