Exhaust leak

[Bill]

Our J160C has developed a leak at the junction of the RHS rear exhaust pipe / muffler. There is no cracking or corrosion evident. TTIS 160Hrs. Any suggestions / comments appreciated. Thanks, Bill

 

 

[brilin_air]

Hi Bill

 

A couple of questions:

 

Is it at the muffler, or where the pipes join?

 

Sort of need a little bit more info here.

 

Regards Brian

 

 

[Bill]

Hi Brian, it's where the pipe fits into the muffler. There's a grey dusting on the exhaust pipe, indicating where the gas is escaping. The other three joints are okay. Regards, Bill

 

 

[brilin_air]

Hi Bill, without looking at it , it sounds as it will need rewelding if it is at the join on the muffler and the pipe, there was some pipes that were mig welded and they gave problems with cracking at the weld join, the exhausts that were tig welded did not give as much trouble. Hope this helps.

 

Brian

 

 

[Bill]

Brian, just to clarify. The section of pipe (~30mm long) welded to the muffler does not appear to be cracked at the weld. The exhaust pipe, which has a smaller OD, is inserted into the pipe section on the muffler. From the maint. manual no gasket is used to seal the join. The exhaust gas leak appears to be from between the exhaust pipe / muffler join. It'll be 10 days before I can get to the a/c to check the weld again. Regards, Bill

 

 

[brilin_air]

Bill, if it is at the join you may have to loosen the engine pipes at the heads and give the assembly a wiggle to allow the pipes to join together properly, make sure that there is tension on the joining spring to hold it all together and retension the pipes to the heads again.

 

Brian