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Author: Subject: Sharp edges of exhaust silencer.....SVA not happy
tegwin

posted on 4/8/08 at 11:03 AM Reply With Quote
Sharp edges of exhaust silencer.....SVA not happy

Another one of my fail points was the exhaust muffler...

Basically where it has been made there is a lip either end which is "sharp"...To get around this I clipped some plastic herringbone trim over it....its been inplace long enough to get several heat cycles and it hasnt fallen off..

However, the examiner didnt think it was perminant enough so pulled it off...


What have other people used to put on such edges exposed to heat?

I was thinking of some chrome brake pipe(can you get that?) Split down the middle and then pressed onto the ends of the muffler box..

What have other people done to get around this problem?







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speedyxjs

posted on 4/8/08 at 11:19 AM Reply With Quote
Is there any way you can get an aftermarket tip like the ones you get from halfrauds?
They tend to have a rolled edge and are bolted on.





How long can i resist the temptation to drop a V8 in?

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Mr Whippy

posted on 4/8/08 at 11:21 AM Reply With Quote
plastic trim on a silencer?! you been drinking

just make a guard out of an old washing machine or some large mesh to keep his fingers away from it. Then chuck it once you've passed.





Fame is when your old car is plastered all over the internet

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mad4x4

posted on 4/8/08 at 11:23 AM Reply With Quote
Photo's would help of the offending edge





Scot's do it better in Kilts.

MK INDY's Don't Self Centre Regardless of MK Setting !

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JohnN

posted on 4/8/08 at 11:26 AM Reply With Quote
Speedyxjs, I think he's talking about the can, not the end of the pipe??

I think that if your can looks like one that would normally be under a car, ie it has standing edges at the ends, then your only option is, as you suggest, to fit something over the "sharp" edges to bring the radii up to 3+mm

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omega 24 v6

posted on 4/8/08 at 11:32 AM Reply With Quote
get a piece of 5mm round s/steel rod and bend it round the edge. Stich weld in 5 places,





If it looks wrong it probably is wrong.

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speedyxjs

posted on 4/8/08 at 11:41 AM Reply With Quote
quote:
Originally posted by JohnN
Speedyxjs, I think he's talking about the can, not the end of the pipe??



That would make more sense





How long can i resist the temptation to drop a V8 in?

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Marcus

posted on 4/8/08 at 11:41 AM Reply With Quote
I araldited some split 8mm copper pipe to the offending edge and polished it to make it look pretty. SVA bloke seemed to like it. It's still on, but I' passed caring what it looks like!!





Marcus


Because kits are for girls!!

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tegwin

posted on 4/8/08 at 11:58 AM Reply With Quote
I had thought about normal copper pipe with some polish..

Deffinatly fairly easy..

How did you go about splitting the pipe down the middle?





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whitestu

posted on 4/8/08 at 12:05 PM Reply With Quote
quote:

get a piece of 5mm round s/steel rod and bend it round the edge. Stich weld in 5 places



That's what I did and it passed.

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omega 24 v6

posted on 4/8/08 at 03:42 PM Reply With Quote
quote:

That's what I did and it passed.


Great minds think alike.





If it looks wrong it probably is wrong.

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Macbeast

posted on 4/8/08 at 07:49 PM Reply With Quote
Not done it yet, but this is the plan





Stainless pet feeding bowl, about a pound.

Cut 48mm (in my case) hole in centre to snugly fit over pipe. Trim surplus at back to just fit over silencer body, leaving 4-6 tabs for rivet into silencer.

Don't know if it'll work, but it's satisfactorily locost.

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t.j.

posted on 4/8/08 at 08:59 PM Reply With Quote
quote:
Originally posted by Macbeast
Not done it yet, but this is the plan



Stainless pet feeding bowl, about a pound.

Cut 48mm (in my case) hole in centre to snugly fit over pipe. Trim surplus at back to just fit over silencer body, leaving 4-6 tabs for rivet into silencer.

Don't know if it'll work, but it's satisfactorily locost.


I feel sorry for the dog, which is drying out now?
Good solution, I like the copper idea also.





Please feel free to correct my bad English, i'm still learning. Your Dutch is awfull! :-)

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02GF74

posted on 5/8/08 at 09:13 AM Reply With Quote
if I understand what you are sauyihng, this is your solution.

8 mm (or was is 10 mm?) aluminium tube curved into shape. A pair of nibblers from machine mart to slit the tube which you then put onto the can - and yes, it does take a bit of time making the curved slit.

In fact I may have these still lying around somewhere that you can have.


trim on can
trim on can

trim on can - side
trim on can - side







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