Replacing engine fuel line rabbit hole.

[85RedCarrera]

Originally Posted by WMichelsen

Dave, I really like your airbox clip fix. I have one that is cracked and needs attention.
I may copy you, and try pop-rivets to secure it. Maybe?

I didn't want to risk having any hardware failing and getting into the intake, so I used AN-3 single-use, high temp, aviation metal lock nuts (probably overkill). They use these on flight controls- I have a lot of confidence in them.

A pop-rivet installed from the outside will require a backing washer, since the air box is soft plastic. I guess if you don't use a backing washer, the worst that can happen is the pop rivet can fall out into the engine compartment- no harm, no foul. Selecting the proper size washer will be critical to it not coming loose after installation...

I just used what I had laying around. Just remember- the hardware is installed downwind of the air filter, so the filter is not going to stop the engine from eating a washer!

[FrontGarage911]

Originally Posted by 85RedCarrera

Just another idea to throw out there for dealing with busted lips on the airbox... bits of steel/brass/aluminum can be bent in a vise, then some aircraft metal lock nuts & screws to keep it secure. If you'
re really concerned about the engine ingesting hardware, then get drilled bolts with castellated nuts and use cotter pins. The metal locknuts in the pic will never move though- they have a relatively high prevailing torque.

Nice project you have- so many little things to fix. Going through this right now with mine.

Wow. That is a work of art. Thank you for sharing.

You've inspired me to do a bit better. I did not want any hardware inside but I have considered using red loctite to secure the fasteners.

This is after a second coat of epoxy and 400 grit of sanding. I think if I were to go over it with a high build primer it would fill in the holes in the epoxy for a better finish.

[85RedCarrera]

Originally Posted by FrontGarage911

Wow. That is a work of art. Thank you for sharing.

You've inspired me to do a bit better. I did not want any hardware inside but I have considered using red loctite to secure the fasteners.

This is after a second coat of epoxy and 400 grit of sanding. I think if I were to go over it with a high build primer it would fill in the holes in the epoxy for a better finish.

Wow, that looks a lot better now!