Exhaust studs stripped
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Intermediate
Joined: Oct 2009
Posts: 32
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From: Stonehaven, Scotland
Exhaust studs stripped
Softail 1988 50,000 miles
The exhaust studs on both front and rear cylinders are in bad shape, and need replacing, as I'm getting blow-back, and popping on over-run. I've seen on some custom bikes that the studs are replaced with alan bolts, screwed straight into the heads. Is this a good idea, or should I stay with the conventional studs?
Thanks for your advice
The exhaust studs on both front and rear cylinders are in bad shape, and need replacing, as I'm getting blow-back, and popping on over-run. I've seen on some custom bikes that the studs are replaced with alan bolts, screwed straight into the heads. Is this a good idea, or should I stay with the conventional studs?
Thanks for your advice
Road Captain
Joined: Sep 2006
Posts: 749
Likes: 2
Studs are the way to go. Steel bolts going into aluminum heads are an accident (stripping) waiting to happen. Much easier to remove and replace stud (when the nut end is strip) than it is to either helicoil or weld up/retap the head....
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Joined: Dec 2007
Posts: 12,084
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If the studs become broken, we mount the head in a fixture and configure the power head on one of the milling machines, to the correct angle, and drill the old stud out, and in a lot of cases, the original threads are left intact.
Scott
Scott
Thread Starter
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Intermediate
Joined: Oct 2009
Posts: 32
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From: Stonehaven, Scotland
OK, thanks for all the advice. Studs it is. Now the obvious next bit. Since the threads are shot, I can't get two nuts onto the stud to wind it out that way, and access is tricky for stud removal grips (the one I've got has soft faces to reduce damage). Any tricks of the trade?
Thanks
Thanks
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HDF Community Team
Joined: Jun 2006
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From: san antonio
Can you get one nut on? If so, hit it with a brazing rod or MIG/TIG welder? I am not a welding expert, so I don't know which would be better. If that fails, pull the head and take it to a machine shop.
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Outstanding HDF Member
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From: la
http://www.craftsman.com/shc/s/p_101...2062000P?mv=rr I'm not sure if you have the space but these work good.
Banned
Joined: Mar 2007
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From: Woodstock, Ont , Can
Get a nut on there and braze , mig, or tig it to the stud, depending on what you have to work with. All will work for you. Let it cool before wrenching it off. This will let the stud shrink an will be easier to get out.
Ron
Ron