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Armours exhaust for FB Powerbike 56

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Armours exhaust for FB Powerbike 56

Post  FB vincent on Sat Dec 10, 2016 9:45 am

I recently purchased an exhaust system for my brother's 2F engined Powerbike 56. The design was specified by FB expert Des Heckle, but neither Armours or Des can provide the clamp and cup for the pipe to silencer seal. Can anyone either provide these items, suggest a source or let me know how they have overcome this problem? PM me if you can help and I will let you know my email address. Sandy Ross

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Exhaust

Post  kerabo on Sat Dec 10, 2016 4:34 pm

Sandy
I have my exhaust back now. Tell me again what you wanted to know.
Regards Ken

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Location : 1950 Powerbike 56. 1960 Falcon 87. 1961 Trials 83 Special. Falcon 87 in bits. Falcon 81 Trials bitsa.

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Powerbike Exhaust

Post  peter@dunfordconstruction on Sat Dec 10, 2016 6:36 pm

What diameter is the pipe as I might have a clamp

Peter

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pipe size

Post  piston 197 on Sat Dec 10, 2016 7:57 pm

Tiny pipe should be 1 1/8" for the Model 56

JH

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Powerbike exhaust system

Post  FB vincent on Sun Dec 11, 2016 8:57 am

peter@dunfordconstruction wrote:What diameter is the pipe as I might have a clamp

Peter

Peter,

The o.d. of the original (non detachable silencer) system was 1 1/16", as measured from two 1951 pipes. The Armours replacement pipe is approx 1/32" greater in diameter than this. It is possible that the later detachable silencer pattern used a larger diameter, as quoted by JH..

Interestingly New Hudson used pipes of 1 3/16" o.d.

Any help appreciated!

Sandy

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Exhaust

Post  kerabo on Sun Dec 11, 2016 9:33 am

Sandy can you pm me your email address please.
I can't remember how yo out pictures on the forum.
Regards Ken

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Exhaust

Post  kerabo on Sun Dec 11, 2016 9:37 am

It's ok Sandy my iPad had remembered your email
Pictures on the way.

The front pipe is 1.127" whatever that translates to.. The exhaust clamp is a normal twin section clamp with a bolt through it. The seal is the tricky bit. It's a concave washer about 3/8" deep with a seal inside held in place by the clamp. The silencer is squeezed up to that seal by a through stud right through the middle of the silencer.
Ken

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sizes

Post  piston 197 on Sun Dec 11, 2016 5:07 pm

I said 1/4" Ken measures 1.127" ok so I was 2 thou out, about the thickness of the chrome ?
JH

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Re: Armours exhaust for FB Powerbike 56

Post  peter@dunfordconstruction on Sun Dec 11, 2016 5:55 pm

Hi Regret Mine all too big!

Peter

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Re: Armours exhaust for FB Powerbike 56

Post  Sorcererflyer on Sun Dec 11, 2016 8:35 pm

piston 197 wrote:I said 1/4" Ken measures 1.127" ok so I was 2 thou out, about the thickness  of the chrome ?
JH

1.125 is I and one eighth, 1.25 is 1 and a quarter, surely?

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Its been a long day !

Post  piston 197 on Sun Dec 11, 2016 8:42 pm

Yes you are correct, was up at 4am this morning, must get thinking and typing in sync !
Incidentally on Armours exhaust pipe listings product No ARMFB56 ( powerbike model 56) it states the pipe to be 1 1/8" ?? now they could be wrong ??
JH

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Re: Armours exhaust for FB Powerbike 56

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