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85RedCarrera 85RedCarrera is online now
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Join Date: Apr 2025
Location: NorCal Foothills
Posts: 242
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Quote:
Originally Posted by WMichelsen View Post
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!
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Dave
Project: 1985 Porsche 911 Carrera Coupe 3.2 to 3.4L "Carina"
PCA Member- Sacramento Valley region
Old 12-22-2025, 08:45 AM
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