Rowland,
I can confirm that my cockpit module had an aluminum plate for the brake master
cylinder mount molded into the cockpit module. If you will go to my build web
site ( http://www.europaowners.org/N914XL/ ), album Year #2, Q3 2004. Go down
the page to the pic "Brake master cylinder bolted in place." The view is from
the bottom of the cockpit module. You can plainly see the aluminum plate
bonded into the cockpit module.
You should contact the factory to see if your CM is correct or defective. If
your
CM has been bonded in place already, it may be that you just need to bond
the appropriate chunk of aluminum to the back side with Araldite and cover with
a couple plys of BID. Or, perhaps take the appropriate chunk of aluminum, use
it as a template to mark the area on the inside of the CM where it will reside.
Cut out the inner layer of BID and remove the layer of foam. Bond the chunk
of aluminum in place with Araldite, using Araldite/FLOX to fill any cracks.
If necessary, make a FLOX fillet around to provide a transition to the inner
skin, and lay up at least two layers of BID on the back side, maybe more.
Other folks suggestions as to the number of layups would be welcome. Probably
need to overlap the inner skin by at least 1 inch (2.5 cm). I might go 2 inches
(5 cm). Of course, be sure to scuff sand every bonding surface, aluminum
and fiberglass.
Hope this helps.
Good building and great flying,
Bob Borger
Cell: 817-992-1117 (U.S.A access codes)
On Thursday, July 03, 2008, at 09:30AM, "Rowland Carson"
<rowlandcarson@googlemail.com>
wrote:
>
>
>>There is a metal insert in the tunnel wall (the area you call the
>>"plain resin area"). The mounting holes need to go in this area,
>>parallel to the top of the tunnel as shown in the illustration
>
>John - thanks for your reply.
>
>The metal insert in my cockpit module must be a quite exotic alloy as
>I can see through it! That's why I said it was a "plain resin" area -
>obviously it has glass weave too.
>
>But now I'm wondering - is my cockpit module faulty? Can anyone else
>confirm that the brake master cylinder mounting area contains a metal
>insert as John found on his?
>
>regards
>
>Rowland
>--
>| Rowland Carson ... that's Rowland with a 'w' ...
>| <rowlandcarson@googlemail.com> http://home.clara.net/rowil/
>
>
|