Header pipe vibrates out of head

[JulianS]

The "power jet " silencer is shown in the 1962 brochure below.

The dealer bulletin explains what to do with the "power jet" silencer to get more power - interest only I dont think anyone makes them now!

Last photo shows improvemnets for 1963.

[worntorn]

Thanks for posting that Julian. I was fretting over how I would locate a new old stock "Powerjet Silencer" in order to get that elusive "3 to 4 horsepower"
It looks like there is no magic to it, just reduce restriction of silencer until ears bleed :-)

Glen

[coater87]

Thanks for posting that Julian. I was fretting over how I would locate a new old stock "Powerjet Silencer" in order to get that elusive "3 to 4 horsepower"
It looks like there is no magic to it, just reduce restriction of silencer until ears bleed :-)

Glen

 Yes, remove any type of muffler (this makes it sound louder, which MUST be faster). Then put extensions on straight pipes so its not to loud for passenger.

 Put out "super secret" memo for off road racers only, and watch the glasspack mufflers fly off the shelf. If you put 2 foot long chisels right next to them in the shop, even better.

 Lee

[kiwipom]

hi guys, this is what I use never heard of assembling pipes dry, hope it helps, cheers

[worntorn]

RTV in place plus Muskrat's lock wire on the problematic rings, surely things will stay put now. I've never had to use silicone or lockwire on an exhaust. The other bikes here& previous all used threaded  connectors and gasket rings of some type to make the in head connection. If tightened when hot, they work well.The header to silencer connections just clamp up tight to seal. The dry connection make for easy removal/ replacement.

Won't be having that ease of removal with this BSA and its glued in exhaust, so hopefully there won't be a need for exhaust removal anytime soon!

Glen

[Greybeard]

Won't be having that ease of removal with this BSA and its glued in exhaust, so hopefully there won't be a need for exhaust removal anytime soon!

You do know that BSA stands for Bits Stuck Anywhere don't you?

[worntorn]

I guess all of these old bikes have their idiosyncrasies. That is why a forum like this is so helpful to those of us new to the brand.

Glen

[worntorn]

As mentioned in the other Siamese exhaust thread, the siliconed in pipe stayed in for 150 miles then let go.
I thought about trying the Teflon tape suggestion, but it seemed unlikely to work with this poor fitting pipe.

 Royal Enfield twins use a tie rod to hold the push fit headers in place for both Siamesed or twin pipe types. It seems a sturdy method, so I added the tie rod. Will report back after a thousand miles. The exhaust seems very solidly mounted now, I don't think there will be a repeat problem.

Glen

[duTch]

 Much like my turnbuckle idea ^^

[bsa-bill]

3-4 more bhp is 7 to 10% increase on a even a RGS, that's a lot surely
No I'll stick with my memory that they were for sidecar fitting