rv8apilotpab
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Fellow RVators
I have 750 Hrs on my 8a. It is certified and used for IFR flight and I need reliability.
I have Vetterman stainless exhaust and Vetterman pipe support bracket system. I have a Lycoming IO 360 angle valve. I have just had my 4th exhaust stack failure in the 750 hous I have flown on this airplane. Each time the stack breaks at the weld of the pipe to the exhaust manifold flange. 2 times on no 2 cylinder and 2 times on no 3 cylinder. 3 breaks have been on new stacks and one on a reweld by a local shop, not Larry V. One of the broken stacks was rewelded and fortified by Larry who uses a jig. It has not rebroken.
One of these failures occurred at night in winter over Lake Eirie. With typical British understatement, (she is British, I am Canadian) my wife who was with me on 2 of thes failures, stated, "I don't like it when that happens."
So, can you help me please with ideas about how to prevent a re-
occurrence.
Yours pab
I have 750 Hrs on my 8a. It is certified and used for IFR flight and I need reliability.
I have Vetterman stainless exhaust and Vetterman pipe support bracket system. I have a Lycoming IO 360 angle valve. I have just had my 4th exhaust stack failure in the 750 hous I have flown on this airplane. Each time the stack breaks at the weld of the pipe to the exhaust manifold flange. 2 times on no 2 cylinder and 2 times on no 3 cylinder. 3 breaks have been on new stacks and one on a reweld by a local shop, not Larry V. One of the broken stacks was rewelded and fortified by Larry who uses a jig. It has not rebroken.
One of these failures occurred at night in winter over Lake Eirie. With typical British understatement, (she is British, I am Canadian) my wife who was with me on 2 of thes failures, stated, "I don't like it when that happens."
So, can you help me please with ideas about how to prevent a re-
occurrence.
Yours pab