Broken screw - right upper motor mount
Moderators: CYBORG, Oldewing, robin1731, Forum Moderators
- odyssey
- Chrome Member
- Posts: 133
- Joined: Wed Dec 14, 2016 10:04 am
- Location: Quincy, MA
Broken screw - right upper motor mount
Screw was rusty and it broke when I tried to take it out. When the impact driver method failed, I started drilling the screw out. What would you do at this point? Drill a bigger hole and place an insert? Challenges...I would appreciate your input.
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Past rides:
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
- kerryb
- Chrome Member
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- Location: Buffalo, NY
Re: Broken screw - right upper motor mount
I just saw post somewhere that alum , the stuff they use to make pickles, will eat away the steel without touching the aluminum! You need to create a way to make a pool to hold the solution. This guy rtv'd an aluminum pop can around the bolt and the offending screw was dissolved in hours. Try youtube search.
You look to be making good progress, one more drill size may get to the rest of it...
You look to be making good progress, one more drill size may get to the rest of it...
intrigued by the wail...seduced by the scream.
'78 cb750K, '83 GL1100s,I,&A,'08FXSTC, '79 WilMac trike
'78 cb750K, '83 GL1100s,I,&A,'08FXSTC, '79 WilMac trike
- CYBORG
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Re: Broken screw - right upper motor mount
I don't use the upper mounts on most of my bikes. Never had a problem. Don't worry about it
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
- odyssey
- Chrome Member
- Posts: 133
- Joined: Wed Dec 14, 2016 10:04 am
- Location: Quincy, MA
Re: Broken screw - right upper motor mount
Sounds good, in that case forget about the shroud?
Past rides:
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
- CYBORG
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Re: Broken screw - right upper motor mount
right
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
- Toehead
- True Blue Steel Biker
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- Joined: Fri Jul 15, 2011 3:10 pm
- Location: Mendon, MA
Re: Broken screw - right upper motor mount
If you are dead set on getting it out, there is enough on the backside to weld to. Welding the center will cause it to pull away (contract inward as it cools) and break loose.
2012 Golf TDI, fast and frugal oil burner
1980 CX500C, All around road warrior (Sold)
1975 TS125 (Sold), old smoker
1977 naked GL1000, Highway cruiser
'81 GL1100 14,000 (reconditioned and sold)
'81 GL1100 50,000 miles (under construction)
2X 1981 CM400 beginner bike (sold)
1980 CB750C (sold)
1994 Virago 750 (Wifey's bike)
'76 GL1000 Sulphur Yellow (Megasquirted efi build) http://www.ngwclub.com/forum/viewtopic.php?f=47&t=59774
1980 CX500C, All around road warrior (Sold)
1975 TS125 (Sold), old smoker
1977 naked GL1000, Highway cruiser
'81 GL1100 14,000 (reconditioned and sold)
'81 GL1100 50,000 miles (under construction)
2X 1981 CM400 beginner bike (sold)
1980 CB750C (sold)
1994 Virago 750 (Wifey's bike)
'76 GL1000 Sulphur Yellow (Megasquirted efi build) http://www.ngwclub.com/forum/viewtopic.php?f=47&t=59774
- ericheath
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Re: Broken screw - right upper motor mount
There are a couple others here who've had that whole ear break off. They just run it like Cyborg. I had one break and was able to weld a piece to it and get it out. It probably needs the heat to break it free. Interesting to try that alum. I don't think I'm eating pickles any more- not.
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
- Whiskerfish
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Re: Broken screw - right upper motor mount
threads got screwed up so I have a bolt and nut in a couple of mine.
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"The book is wrong, this whole Conclusion is Fallacious" River Tam
2008 GL1800 IIIA "TH3DOG"
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
1975 Naked Noisy and Nasty in town bike
and a whole garage full of possibilities!!
Psst. oh and by the way CHANGE YOUR BELTS!!!!
"The book is wrong, this whole Conclusion is Fallacious" River Tam
2008 GL1800 IIIA "TH3DOG"
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
1975 Naked Noisy and Nasty in town bike
and a whole garage full of possibilities!!
Psst. oh and by the way CHANGE YOUR BELTS!!!!
- warhead_71
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Re: Broken screw - right upper motor mount
( Other bikes: 76 CB200T | 68 CL350 | 69 CB350 | 76 CB360T | 78 CB400T | 81 CM400 | 79 CB750F | 81 CB650C | 73, 74, 76 CB750K | 83 V45 Magna | 84 V65 Magna )
'78 GL1000 :: EMGO Superbike handlebars, Corbin touring seat, National Cycle F-16 windscreen, EMGO "Roadhawk" wide-mouth 24" megaphones.
'78 GL1000 :: EMGO Superbike handlebars, Corbin touring seat, National Cycle F-16 windscreen, EMGO "Roadhawk" wide-mouth 24" megaphones.
- odyssey
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- Location: Quincy, MA
Re: Broken screw - right upper motor mount
Definitely.
Past rides:
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
- warhead_71
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Re: Broken screw - right upper motor mount
Whenever I have a stuck bolt, the first thing I do is douse it with PB Blaster... let it soak in for a couple of hours at least. You might also try heating up the ear with a butane torch, get it to expand a little bit. Then, since you already have the bolt drilled out, carefully spray inside the bolt with ice cold water to shrink it. The combination of hot ear and cold bolt should get it to crack loose. You'll still need an Easy-out to back out the bolt.
( Other bikes: 76 CB200T | 68 CL350 | 69 CB350 | 76 CB360T | 78 CB400T | 81 CM400 | 79 CB750F | 81 CB650C | 73, 74, 76 CB750K | 83 V45 Magna | 84 V65 Magna )
'78 GL1000 :: EMGO Superbike handlebars, Corbin touring seat, National Cycle F-16 windscreen, EMGO "Roadhawk" wide-mouth 24" megaphones.
'78 GL1000 :: EMGO Superbike handlebars, Corbin touring seat, National Cycle F-16 windscreen, EMGO "Roadhawk" wide-mouth 24" megaphones.
- odyssey
- Chrome Member
- Posts: 133
- Joined: Wed Dec 14, 2016 10:04 am
- Location: Quincy, MA
Re: Broken screw - right upper motor mount
Yes, I soaked it for days with PB Blaster, multiple applications. I'll try the torch and the ice water, thanks!
Past rides:
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
- robin1731
- Membership Admin
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Re: Broken screw - right upper motor mount
odyssey wrote:Yes, I soaked it for days with PB Blaster, multiple applications. I'll try the torch and the ice water, thanks!
Better than ice water, and easier to control. Get a can of electronics duster. You know, the stuff we use to blow dust off a computer key board. hold the can upside down and spray that inside the drilled out bolt. It is basically nitrous oxide. Very cold.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- odyssey
- Chrome Member
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- Joined: Wed Dec 14, 2016 10:04 am
- Location: Quincy, MA
Re: Broken screw - right upper motor mount
Nitrous oxide is laughing gas You meant liquid nitrogen...
Last edited by odyssey on Tue Mar 21, 2017 5:52 pm, edited 1 time in total.
Past rides:
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
'72 Vespa Rally 180, Honda Elite 125, Suzuki TU 250, Yamaha XT 600, Suzuki DR 650, Nighthawk 750
Current: '76 GL1000
- Sandy
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Re: Broken screw - right upper motor mount
I have 3 - 1st generation wings that have been restored and every one of them had the right top engine mount seized.
Why only the right top.....who knows.
So I drill out the bolt then run the same size tap through, buy a longer bolt, and secure it with a nut on the back side.
Why only the right top.....who knows.
So I drill out the bolt then run the same size tap through, buy a longer bolt, and secure it with a nut on the back side.
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