Exhaust repair

Fatrover · Jan 15, 2022

Hi Peeps, I need to replace a bit of my mid section exhaust with flexi pipe, the exisiting pipe has a dia of 45mm and the flexi I was thinking about using is 48mm dia, so, would it be ok if i clamped it up either end and sealed with exhaust gasket sealer? Or is 48 too wide? P.s havent got a welder

Wildefalcon · Jan 15, 2022

New exhaust system is cheap. Unless you've a modified system, why bother?

Fatrover · Jan 15, 2022

Wildefalcon said:
New exhaust system is cheap. Unless you've a modified system, why bother?[/QUOTE

Because ive got a modified system

Wildefalcon · Jan 15, 2022

In that case try it? Buy a decent clamp with real crush strength.

Wildefalcon · Jan 15, 2022

Cut a few slots in the new Flexi, so the material has somewhere to go.

Fatrover · Jan 15, 2022

Thats the lines i was thinkin on

steve2286w · Jan 15, 2022

Can you put a thin sheet metal sleeve in to take up the gap and seal with the exhaust paste

Fatrover · Jan 15, 2022

steve2286w said:
Can you put a thin sheet metal sleeve in to take up the gap and seal with the exhaust paste

Excellent Sir! I think ive got bits of off cut somewhere that would do just fine

rob1miles · Jan 19, 2022

Don't cut slots in it, its a spiral and will fall to bits. Loosen or tighten the spiral to get a good fit, slap goop on and do the clamps up.

Fatrover · Jan 19, 2022

rob1miles said:
Don't cut slots in it, its a spiral and will fall to bits. Loosen or tighten the spiral to get a good fit, slap goop on and do the clamps up.

Thanks, the particular pipe Ive ordered has solid finished collar ends on, I suppose made that way for that very reason! Still waiting for delivery, one of the many unjoys of living in the absolute middle of nowhere!

Blackburn · Jan 19, 2022

If it is larger bore you can always wrap a tin can around the smaller bore and get it close enough to clamp the larger bore too.

Fatrover · Jan 20, 2022

Done, straight piped, all sorted.

steve2286w · Jan 20, 2022

Nice one

BikerB · Jan 20, 2022

Fatrover said:
Still waiting for delivery, one of the many unjoys of living in the absolute middle of nowhere!

I used to think that when I lived in the area, then moved further north even closer to the middle of nowhere which is even further north of me.

Webley1991 · Jan 21, 2022

Do rules about exhaust noise limits apply to vehicles over 40 years old and MOT exempt?

As far as I knew if it had a silencer from the factory, then legally it had to have one fitted to be used on the road.

6pot · Jan 21, 2022

Blackburn said:
If it is larger bore you can always wrap a tin can around the smaller bore and get it close enough to clamp the larger bore too.

Yep, tried and trusted method...

Webley1991 said:
Do rules about exhaust noise limits apply to vehicles over 40 years old and MOT exempt?

As far as I knew if it had a silencer from the factory, then legally it had to have one fitted to be used on the road.

There is a dB limit when going through vehicle approval as part of registering so exceeding that as part of a modification might result in falling foul.

Maybe it doesn't matter in the middle of nowhere

Webley1991 · Jan 21, 2022

6pot said:
There is a dB limit when going through vehicle approval as part of registering so exceeding that as part of a modification might result in falling foul.

Maybe it doesn't matter in the middle of nowhere

I was just thinking if it was a reason for an over-keen police officer to give the driver a hard time.

Fatrover · Jan 21, 2022

Loads of straight piped vehicles here its a rural agricultural area police dont bother ( not that we ever ever see them), undoubtedly would be different in a town I dont know or care

Bobsticle · Jan 23, 2022

At least it won’t make a difference inside

Fatrover · Jan 23, 2022

Bobsticle said:
At least it won’t make a difference inside

Not a bit. Ideal

Exhaust repair

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