On the mk 3.5 1.6 zetec the downpipe has a pip / line of welded at the
join say one inch along the side of the exhaust.
the split in the mid section has one slit bigger than the other. my
understanding is the pip will aid in stopping the pipe rotating. you
could try something similar.
Qless
Gary
On 10/08/2012 08:35, Jim Hearne wrote:
I take it when you say the exhaust “was scraping the floor” you mean
it was touching the ground not the floor of the car.
This is the problem with the Mk2 Fiesta exhausts, the entire rear of
the system is offset across the car and only has supports on the
outside of the system.
It relies on the clamp between the exhaust and the downpipe to stop
the exhaust system twisting as you’ve found.
It maybe that you’ve got a slight mismatch in size between the new
downpipe and the old exhaust system and the joint can’t be tightened
enough to stop the rotation.
If there is a gap you maybe able to shim it using a strip of metal cut
off a old tin can or similar.
Use silicone sealant on the joint as well, works much better than the
old exhaust paste.
This is why i think the downpipes crack as well, they are taking all
the twisting force from the weight of the exhaust system trying to turn.
I’ve added some extra support brackets on the exhaust on my Mk2 and
Quantum 2+2 and saloon so that the exhaust system is self supporting
without being connected to the downpipe.
Jim
*From:* calvin cotton <mailto:[email protected]>
*Sent:* Thursday, August 09, 2012 5:48 PM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* [Quantum Owners] moving exhaust
hi again, firstly a big thank you to everyone who helped me out with
the earlier stuff, i bought a new downpipe and fitted it easily but
now have a problem... after fitting the downpipe i took the car out
for a quick drive to see and heard scraping, the exhaust had twisted
(and therefore dropped) and was scraping the floor, i took the car
back jacked it up again and reajusted the exhaust again tightened the
bolts further and gave the exhaust a good shaking and it was very
solid, i dropped the car back down and took it out again but the same
problem occurred, got back in and the exhaust had twisted again, has
anyone had this problem before?
thanks
calvin
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