Exhaust collars

The little collars (probably not the correct technical name) [1] at the head
end of the downpipes collapsed on my bike today. :-( Starting ticking again
then just sounded like a burst arse.

The exhaust is a Neta. Anyone know if these little collar things are
available separately. I really don't want to have to spend £250 on a new
exhaust when only these bits have rusted to nothing.

[1] The little tubes that push the downpipe to the exhaust port.

 

gazzafield says...

You cannot buy them seperately. I have made them myself for two Motad
systems in the past by hand beating them from flat sheet and beating a
lip on one end. You need to make two for each pipe as it's impossible
to get a one piece one in there without removing the end of the
downpipe.

 

Can you not just remove the downpipe from the collector and drop 'em off at
that end?

Assuming the downpipes aren't rusted/seized in the collector joint, just
that I recall when fitting the Motad to the CB that the collars and
everything were packed separately and that's how they were put on the pipes.

Dave

 

WavyDavy says...

Trouble with anything Motad make is that they corrode badly. If the
collars are that rusted then don't even attempt to remove the pipes
from the collector box. I fabricated collars for the ex-TOG/Eddie GT750
just after Statto acquired it, and for the CB as well. The CB Motad was
only about 2 1/2 years old by the time the collars rusted through, and
there are a plethora of welded plates all along it now as well.

 

What does that sound like?

 

mubbueth says...

Yours maybe didn't, but mine have lasted longer than the original Motad
ones. I made mine from a bit of beaten flat, very knackered Renault 21
exhaust pipe that had its fair share of corrosion before I started.

 

Like a very loud fart.

 

Thanks mubbueth. I'm not surprised at them not being cheap. As I posted
before, £32 + VAT for a carb inlet rubber! Porbably the same now for the
exhaust part too.