Odd Fixes, finds and repairs

[cookies]

I had my butt kicked by a 034 super's zama carb over and over, I put 2 kits into it before I found the damn fuel pump diaphragm was leaking between the carb cover to atmosphere. It took looking at the original kit I removed to notice the problem. New aftermarket kits come with the harder more chemical resistant fiber fuel pump where as the original was the softer butyl. My fix was applying aviation sealant to the outside sealing edges of where its supposed to seal after I tried decking the carb body thinking it was the culprit. I have a oem zama kit on the way. I pulled apart that stupid thing 8+ times trying to solve the leak down issue. I ran 3 tanks through it today without a hitch! Anyone else have one like this before?

 

[pioneerguy600]

Warped cover syndrome.

 

[cookies]

It was a really weird leak, it might hold a long enough you would walk away and other times it would simply bleed off vac/pressure very slowly. It was a first for me and I chalk it up to the harder fiber sheet not sealing/deforming like a butyl rubber one will. Im simply amazed the airplane sealant has fixed the leaks, it held 12lbs vac/pressure over a half hour without moving. I have a new cover otw incase it decides to act up again, sadly the new one says china on it instead of japan.