I've not long bought a 1972 Commando Interstate and am in the process of servicing it ready to put it on the road for the first time in 5 years.
Today I was trying to remove the right hand exhaust, and the exhaust nut (or ring, or rose) snapped off 3/4 of the fins (I was using the correct tool!). Is there a straightforward way to extract the remains of the exhaust nut from the head?
I'm not keen to dismantle it. I've not even ridden it on the road yet! I've got this nagging feeling that the head will have to come off and go to a specialist for repair. Oh, by the way, can one get the head off with the engine in the frame?
I must admit to being surprised by the poor quality and lack of thickness of the aluminium alloy used for the exhaust nut. The system on my MZ 250, also a screwed nut round the pipe, is far better, made of steel. It also has to cope with an engine bouncing up and down, just like the Commando. It rarely comes loose as long as one uses a bit of silicone sealant and tightens using a 2 foot bar.
Best regards, Phil.
Today I was trying to remove the right hand exhaust, and the exhaust nut (or ring, or rose) snapped off 3/4 of the fins (I was using the correct tool!). Is there a straightforward way to extract the remains of the exhaust nut from the head?
I'm not keen to dismantle it. I've not even ridden it on the road yet! I've got this nagging feeling that the head will have to come off and go to a specialist for repair. Oh, by the way, can one get the head off with the engine in the frame?
I must admit to being surprised by the poor quality and lack of thickness of the aluminium alloy used for the exhaust nut. The system on my MZ 250, also a screwed nut round the pipe, is far better, made of steel. It also has to cope with an engine bouncing up and down, just like the Commando. It rarely comes loose as long as one uses a bit of silicone sealant and tightens using a 2 foot bar.
Best regards, Phil.