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JackDG |
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JackDG Renault 5 Driver
Joined: 23 Apr 2013 Karma :
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Easy-X |
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Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
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Posted: 23:16 - 22 Jun 2019 Post subject: |
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As you ride the vibrations will work stuff loose and you might get an exhaust leak. Congratulations! you're hastening the planet to its doom with your irresponsible ways
Seriously though, if nothing's about to fall off it's all good. Sooner rather than later fixing it would be better ofc! ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
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JackDG |
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JackDG Renault 5 Driver
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JackDG |
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JackDG Renault 5 Driver
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Easy-X |
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Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
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Posted: 11:31 - 23 Jun 2019 Post subject: |
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Any chance of a photo of this debacle? Might help ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
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Robby |
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Robby Dirty Old Man
Joined: 16 May 2002 Karma :
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JackDG |
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JackDG Renault 5 Driver
Joined: 23 Apr 2013 Karma :
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Posted: 13:37 - 23 Jun 2019 Post subject: |
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Photos attached. You can see the two bolts on top side which have snapped perfectly flush to the collar. If I end up breaking all of them in a similar fashion, the exhaust will simply pull away right????
At which point I can follow your advice robby. 2nd pic shows the sheared bolt heads.
https://i.imgur.com/Wp786zl.jpg
https://i.imgur.com/HQRQzfT.jpg[/img][/list] ____________________ 1992 GPZ 500 |
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Riejufixing |
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Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
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Grubscrew |
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Grubscrew Scooby Slapper
Joined: 23 Dec 2018 Karma :
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 22:24 - 23 Jun 2019 Post subject: |
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The best thing to do with that once you have the collar off is to weld a nut to the end of the stud (or get someone else to do it). The heat generated will free it off and it should just undo.
It would be easy to do now, it would be harder to do later with less stuff sticking out.
Although in fairness, the standard studs on a CBR6 aren't much better. In their wisdom, Honda made up special studs with an M8 thread going into the head and an M7 on the other end. Almost like they were designed to snap exactly flush with the head.
The previous owner probably decided to change the exhaust and threw away the nasty rusty nuts before realising they were an oddball thread size. ____________________ “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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kramdra |
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kramdra World Chat Champion
Joined: 28 Oct 2010 Karma :
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Riejufixing |
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Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
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JackDG |
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JackDG Renault 5 Driver
Joined: 23 Apr 2013 Karma :
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Posted: 17:25 - 29 Jun 2019 Post subject: |
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Got a hold of some map gas, and managed to remove 2 bolts fully intact.
Off came the headers, leaving behind 6 studs to remove . Got a laser brand stud extractor - basically a drill chuck with a 1/2 inch driver so you can grip and turn the stud. With heat and a lot of penetrating oil I got 4 of them off without too much struggle, but they were seriously corroded in there. Also appears some of them had been heli coiled previously.
But now I have 2 flush snap studs on different ports tho.
What's the go to route here? I'd be happy to pay to have someone experienced drill them out or weld a nut on the end or something. I'd be even happier to just ignore 2 studs and install new headers but I'm not sure how well it would seal/crush the gasket?? ____________________ 1992 GPZ 500 |
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WD Forte |
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WD Forte World Chat Champion
Joined: 17 Jun 2010 Karma :
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Easy-X |
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Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
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Posted: 21:33 - 29 Jun 2019 Post subject: |
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If you've got this far you may as well do the job right even if that means giving the job to someone else. The bike's machine soul deserves no less ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
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Pete. |
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Pete. Super Spammer
Joined: 22 Aug 2006 Karma :
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JackDG |
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JackDG Renault 5 Driver
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Pete. |
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Pete. Super Spammer
Joined: 22 Aug 2006 Karma :
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Posted: 11:04 - 30 Jun 2019 Post subject: |
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Snapped flush studs I'd put a thick washer over the hole and weld the stud to the washer, then weld a nut to the washer, then turn the nut to un-do. If that doesn't work, drill them out. Get a bit of thick flat plate and drill two holes in it exactly the distance of the studs apart. One is a clearance hole to fix the plate to the port. The other is a smaller hole, say 5mm, to act as a drilling guide. Bolt the plate over the port and use the guide to drill the seized bolt. ____________________ a.k.a 'Geri'
132.9mph off and walked away. Gear is good, gear is good, gear is very very good |
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JackDG |
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JackDG Renault 5 Driver
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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JackDG |
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JackDG Renault 5 Driver
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Posted: 17:45 - 30 Jun 2019 Post subject: |
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JackDG |
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JackDG Renault 5 Driver
Joined: 23 Apr 2013 Karma :
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Posted: 17:10 - 01 Jul 2019 Post subject: |
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https://www.youtube.com/watch?v=VtiaI74Loq8
The method in this video is similar to stud extractor, but tapping in a torx bolt instead. I suppose the idea is they are more resistant to snapping than an extractor. I'd be more comfortable drilling a shallow hole for this as opposed to drilling the whole thing out.
Couple garages near me claimed there are oilways at risk near the threads (02 cbr fsport), 1 doesn't want the job and the other has a 3 week wait list but he still wasn't confident 'desperately hateful job' to quote him .
I'm also gonna use way more heat then I first did. Will update how I get on. ____________________ 1992 GPZ 500 |
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Pete. |
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Pete. Super Spammer
Joined: 22 Aug 2006 Karma :
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Posted: 17:32 - 01 Jul 2019 Post subject: |
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JackDG wrote: | https://www.youtube.com/watch?v=VtiaI74Loq8
The method in this video is similar to stud extractor, but tapping in a torx bolt instead. I suppose the idea is they are more resistant to snapping than an extractor. I'd be more comfortable drilling a shallow hole for this as opposed to drilling the whole thing out.
Couple garages near me claimed there are oilways at risk near the threads (02 cbr fsport), 1 doesn't want the job and the other has a 3 week wait list but he still wasn't confident 'desperately hateful job' to quote him .
I'm also gonna use way more heat then I first did. Will update how I get on. |
Where abouts are you? If you were near me I'd sort the two broken studs in about an hour. ____________________ a.k.a 'Geri'
132.9mph off and walked away. Gear is good, gear is good, gear is very very good |
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JackDG |
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JackDG Renault 5 Driver
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Old Thread Alert!
The last post was made 4 years, 301 days ago. Instead of replying here, would creating a new thread be more useful? |
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