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Omega Help Area => Omega General Help => Topic started by: JamesV6CDX on 17 December 2009, 15:38:29

Title: Grinding exhaust flange
Post by: JamesV6CDX on 17 December 2009, 15:38:29
The flange on my exhausts needs 5mm+ taking off it so they fit the later manifolds.

What's the best thing for the job? Angle grinder?  ::)
Title: Re: Grinding exhaust flange
Post by: Bionic on 17 December 2009, 16:23:02
If you mean the downpipe flange I am not sure that it would be possible, the cat flanges the same. Most joint flanges are 8mm thick at the most. As there is a lot of stress with the heating and cooling cycle plus the necessary required rigidity of the joint it may not be advisable. Perhaps someone else has attempted it and will get back to you. I would wait until then.GudLuk
Title: Re: Grinding exhaust flange
Post by: Kevin Wood on 17 December 2009, 17:03:27
Not many jobs you can't do with an angle grinder if :

a) you've got plenty of cutting disks
b) you're not one for aesthetics

 ;D

Kevin
Title: Re: Grinding exhaust flange
Post by: hotel21 on 17 December 2009, 17:12:20
Quote
Not many jobs you can't do with an angle grinder if :

a) you've got plenty of cutting disks
b) you're not one for aesthetics

 ;D

Kevin

agreed!

I'd be lost without my angle grinder....  Great for removing rust etc from brake discs as well, if you replace the cutting wheel with a very heavy duty wire brush.  ;)
Title: Re: Grinding exhaust flange
Post by: Varche on 17 December 2009, 18:51:54
Another possibility is to angle grind the bell ends off and then have a six inch long oversize tube welded onto the cats end and cut some slots in it and secure onto the exaust system proper using U clamps. That is what I have on mine following a nasty encounter with a rock away from home 5 years ago.

It works but is truly a pain as whenever I have new cats or new exhaust I have to go down to Malaga and pay 15 euros for both sides to be "bodged". It does get through the MOT though.

Varche
Title: Re: Grinding exhaust flange
Post by: Bent valve on 17 December 2009, 19:07:29
Quote
Another possibility is to angle grind the bell ends off and then have a six inch long oversize tube welded onto the cats end and cut some slots in it and secure onto the exaust system proper using U clamps. That is what I have on mine following a nasty encounter with a rock away from home 5 years ago.

It works but is truly a pain as whenever I have new cats or new exhaust I have to go down to Malaga and pay 15 euros for both sides to be "bodged". It does get through the MOT though.

Varche

Thats disgusting :(
Title: Re: Grinding exhaust flange
Post by: JamesV6CDX on 17 December 2009, 19:55:56
In all seriousness -

I've searched high and low, can't find my angle grinder

 >:(

Is there another method? I'm guessing I'd be there all day with a file  ;D
Title: Re: Grinding exhaust flange
Post by: Bent valve on 17 December 2009, 20:14:56
Try your local engineering works /machine shop. literally 10mins work on a lathe. :y
Title: Re: Grinding exhaust flange
Post by: Bent valve on 17 December 2009, 20:27:48
Quote
Try your local engineering works /machine shop. literally 10mins work on a lathe. :y
Erm, after a rethink I suppose you cant really remove them from the downpipes that easily! Just go out and buy a cheap grinder :y
Title: Re: Grinding exhaust flange
Post by: unlucky mark mv6 on 17 December 2009, 20:44:05
Quote
Quote
Try your local engineering works /machine shop. literally 10mins work on a lathe. :y
Erm, after a rethink I suppose you cant really remove them from the downpipes that easily! Just go out and buy a cheap grinder :y
Agreed,get down to wickes and slap 20 odd notes in the cashiers hands,and walk out with a nice 115mm angle grinder,and beleive me they can take some stick. :y
Title: Re: Grinding exhaust flange
Post by: Marks DTM Calib on 18 December 2009, 09:07:36
Its only a few mm thick so a hack saw would work....