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kramdra |
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kramdra World Chat Champion
Joined: 28 Oct 2010 Karma :
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Posted: 16:54 - 08 Sep 2017 Post subject: Exhaust wrap over holes |
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Recently had a couple backfires while riding, they have blew a couple of pea sized holes in my ageing stainless downpipes, which is getting thin. Only 5 years old but 50k miles.
If I wrap the collector portion where the holes are appearing, this should stop fresh air getting in, keep it quiet, and allow mot to pass in Novemeber?
Is this any good? www.ebay.co.uk/itm/182567052876
Plan to change bikes next year after she hits 100k, so not buying a new exhaust. |
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RhynoCZ |
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RhynoCZ Super Spammer
Joined: 09 Mar 2012 Karma :
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 17:16 - 08 Sep 2017 Post subject: |
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Cut a section of steel can (baked bean etc) that covers the holed section and wraps neatly round it. Rub the pipe down with some wire wool to remove any rust and degrease it.
Apply gun gum liberally to the back of your bit of can. Wrap it tightly round the pipe and secure by firmly wrapping garden wire round and round it.
Now put your exhaust bandage over the top of that and secure with more wire wrapped round it in a spiral. If you're feeling keen, jubilee clip top and bottom catching botht the can patch and the bandage.
Run the engine slowly up to temperature to cure the gungum and bandage.
From experience, the above will either fail almost immediately or last for years.
It's been a long time since I've had to do that. I would be very tempted to substitute plumbers silicone for gun gum after recent experience of sealing exhausts and wood burning stoves with it. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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Stoker |
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Stoker Nitrous Nuisance
Joined: 13 Sep 2014 Karma :
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Posted: 02:45 - 09 Sep 2017 Post subject: |
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I've been using epoxy putty on mine, works for a while (week or two) then more rust around the periphery allows it to blow out. Works better on the silencer tbh, and you have to "work" it so some of the putty is inside the pipe, worked underneath the edges for it not to blow straight out again.....
(Passed an mot, as not leaking./ hidden with fresh ht paint... but need to weld properly now as 5.30 am start for work with currently noisy pipe will piss off neighbours)
Gungum, as mentioned by Stink, can work if done properly, ie, sandwiched, as he suggested, but it is brittle and flakey, doesn't like getting wet. |
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ADSrox0r |
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ADSrox0r World Chat Champion
Joined: 23 Oct 2012 Karma :
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Tankie |
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Tankie Crazy Courier
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 13:14 - 09 Sep 2017 Post subject: |
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They won't.
They'll rub their chin, suck through their teeth then tell you it's stainless and they haven't got the tig set up for stainless just now. And anyway, it's too thin. And the metal's too cheap, it'll just blow a bigger hole. And you'll need to take the exhaust off the bike before they can weld it. And we're closed now anyway and only Jimmy does stainless so come back next Thursday. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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Tankie |
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Tankie Crazy Courier
Joined: 24 Feb 2017 Karma :
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Posted: 13:18 - 09 Sep 2017 Post subject: |
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Well ,bring it to me and I'll do it, I'll even chuck a cup of tea with the "while you wait " service ____________________ Always learning, everyday is a school day |
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kramdra |
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kramdra World Chat Champion
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Jardine |
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Jardine Two Stroke Sniffer
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kramdra |
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kramdra World Chat Champion
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Pete. |
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Pete. Super Spammer
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kramdra |
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kramdra World Chat Champion
Joined: 28 Oct 2010 Karma :
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Old Thread Alert!
The last post was made 6 years, 220 days ago. Instead of replying here, would creating a new thread be more useful? |
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