Exhaust pipe crack !

[Uniform Romeo]

Hello guys,

While checking my RV-4 engine, I've discovered on both sides of my exhaust pipes a crack over 270°. I've managed to get it repaired, but I'm now trying to find out a new way of fixing them, so they won't crack again. What kind of tail pipe mount would you advise?
Thank you all for your help and enjoy your flights!
Sincerely
Jean

 

[DaleB]

Jean, sorry I can't help with your exhaust problem, but I can say welcome to VAF!

 

[Raymo]

Hello guys,

While checking my RV-4 engine, I've discovered on both sides of my exhaust pipes a crack over 270?. I've managed to get it repaired, but I'm now trying to find out a new way of fixing them, so they won't crack again. What kind of tail pipe mount would you advise?
Thank you all for your help and enjoy your flights!
Sincerely
Jean

Give Clint at Vetterman Exhaust a call. He is always willing to help.

 

[Uniform Romeo]

Thank you Dale! I'm in the process of finding a solution how to attach the pipe, but I don't know wich solution last the most. We'll see

 

[Uniform Romeo]

Thanks Remo, Will co'
Cheers
Jean

 

[moosepileit]

4 pipes? Crossover?

My snowline crossovers were under-supported aft at the exits.

I think the aft cylinder exhaust flanges were the pivot point and the forward cylinders cracked at the exhaust flange welds.

Have Clint's 1.5" system now, including proper exhaust pipe suspension.