Help broken valve cover bolt gl1100


Information and questions on GL1100 Goldwings (1980-1983)
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alpom
Posts: 2
Joined: Sun Aug 13, 2017 5:22 pm
Location: kamouraska
Motorcycle: Gl1100 1982 cafe racer

Help broken valve cover bolt gl1100

Post by alpom »



Hi,

I bought a 1982 GL1100 this summer. Slowly transforming it into a cafe racer.

Both valve cover were leaking a bit. so I was planing on adjusting my valve and changing the gaskets. First bolt I start to unscrew turn too easily. After removing the cover i can see why... see picture. the cover was broken (the previous owner probably overtightened it, breaking the cover and the bolt).

Ill buy another cover, but what can I do with the part of the bolt stuck in the head? Pierce and add an helicoil? The depth and torque will change...

Any suggestion besides changing the head? Which I would like to avoid.

Thank you very much for your advice and sorry for my bad english.
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AZgl1800
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Location: Lake Oologah Indian Territory USA
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'02 GL1800 lives in Dawsonville, GA now.
My son is going to enjoy it for many years to come.

Re: Help broken valve cover bolt gl1100

Post by AZgl1800 »

Beautiful girl you have there, I am sure she gives you a lot of joy.

you might try to use some solvents made to loosen stuck bolts.

some have drilled out the center of the bolt and tried to use an EzyOut to back it out.

Other has actually drilled the bolt out to the threads, and then used a thread cutter to remove the thread chips.
~John

'02 GL1800
2009 Piaggio MP3 250cc
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thrasherg
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Re: Help broken valve cover bolt gl1100

Post by thrasherg »

Most people do not put any type of locking material on those bolts, they just screw them in until tight. It is clear that someone over tightened that bolt and it broke, you will probably find that if you can buy a small left handed drill and try to drill the remaining part out of the engine (use a slow drill speed) the broken off part might just screw itself out, otherwise I suspect an easy out would work very well.

Gary
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Overdog
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Location: Pittsburgh, Pennsylvania
Motorcycle: 83 Goldwing Interstate

Re: Help broken valve cover bolt gl1100

Post by Overdog »

If the PO didn't put any kind of threadlocker or anything on that bolt it may back out fairly easily if you can get a grip on it somehow....the bolts bottom out on that shoulder so the remainder might not be too tight. A left handed drill bit might spin it right out.
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RBGERSON
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Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: Help broken valve cover bolt gl1100

Post by RBGERSON »

won't hurt to have a set of these to get the center punch correct..


https://www.harborfreight.com/28-piece- ... -3577.html
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB
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jeffcosmo
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Joined: Thu Aug 22, 2013 9:26 pm
Location: Burlington, WI (Honey Lake)
Motorcycle: 1983 GL1100 Aspencade
1983 GL1100 Aspencade
1983 GL1100 Aspencade (parts bike)

Re: Help broken valve cover bolt gl1100

Post by jeffcosmo »

I weld a nut to the remainder, then back it out as if it were a bolt.

If you're close, I can do this.

Cosmo


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