Fire Wall Grommett plugs

[EVRoosevelt]

What do you use to plug the firewall where the electronic ignition cables and cannon plugs go thru?
Thanks
EV

[Mitch]

E.V.


We mount both ignition modules on the cabin side of the firewall. This leaves only the cables that go from the modules to the ignition coils passing through the firewall. I have enclosed a drawing and some pictures of our installation. We can provide you with the parts if you decide to mount them like we do.

We use a silicone called Momentive (RTV 167 gray) to seal up the firewall grommets.

Thanks
Mitch
IMG_7143.jpgIMG_7144.jpgIGNITION MODULES (R).jpg

[Mitch]

E.V.

I am sending a picture of where the crank shaft pickup cables should pass through the firewall. The large grommet (MS35489-52) in the center of the picture is where the cables pass through.

Also I am including a picture of the silicone tube.

Thanks
Mitch
IMG_7148.jpgIMG_7150.jpg

[David H]

I'm about to start on my boot cowl and am wondering if the rubber grommets are OK for the penetrations. Should these silicone grommets be used?:

http://www.aircraftspruce.com/catalo...firwallkit.php

The fuselage build manual calls out for "firewall RTV sealant". Is that this:

http://www.skygeek.com/rtv167-3tg.html

or this::

https://www.amazon.com/Permatex-8116...FBVD8D6B6FED10

or??

Thank you,

David

[ceslaw]

Dave

i used the black rubber grommets that came with the kit. They worked just fine.

The sealant you found would work especially if you go with the red grommets. I used the equivalent RTV sealant in black to match the grommets that came with the kit

chuck