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Retapping head after removing broken bolts. How do you guys tap the holes without removing the motor from the frame. How are you getting the taps in around the holes near the frame legs ?
Todd
Todd
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Either remove the head, the entire engine, or you can take the front tire and forks off to be out of the way. You need to be able to steady the tap absolutely at a 90 and go slowly in and out to clear the tap of shavings You would normally use a compressor to clean out the hole, but in this case you dont want to do this and blow shavings into the engine..Youve got quite a predicament here. To be honest i think the best fix is to pull the head and see at that point how to cap the hole and maybe add some new base to the bottom of the hole..But hey thats just me.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it. -
Considering what you posted in your other thread, I think you should really consider removing the head and fixing the whole situation PROPERLY.
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mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
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Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
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I have to do the same thing. Im removing the complete engine. Then turning it so the exhaust faces up and you place two long bolts in the outter exhaust port holes and use them for sighting to see if your rettaping is as straight as it should be.Comment
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Ohhhh its that head is it. Yes a look down the past the tappets, shim buckets at least to see where the hole is would be a good idea.Comment
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Not good to post two threads on the same issue.Originally posted by Steve View PostConsidering what you posted in your other thread, I think you should really consider removing the head and fixing the whole situation PROPERLY.
I helped install a helicoil in a GS1000 exhaust port threads and we removed the engine bolts and jacked the engine over a little to gain clearance. Much easier to do this than pull the head and/or the engine.
OEd
To measure is to know.
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KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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studs
Wow...within days of being on this forum I'm already being spanked by the forum police LOL. I don't think this is "reposting" as I didnt ask anything about retapping the holes on the first thread. Also, I most likely will pull the head, but if a simple fix works on this one stud....wouldn't it be worth at least a try ? I was only asking for advice...I didn't realize the activity hear was so high that I would get in trouble for posting twice.
ToddComment
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We have no "forum police".Originally posted by thausen View Post
No, you didn't say anything about retapping on the first thread, but it's still the same problem with the same bolt.Originally posted by thausen View Post
Sure, go ahead and try. Then you will find out, just like we did when we tried it, that it won't work, and probably for the reasons that we listed.Originally posted by thausen View Post
And we offered it.Originally posted by thausen View Post
Nobody is "in trouble", it's just that when you post multiple times on basically the same topic, it gets confusing to follow the different suggestions in the different threads.Originally posted by thausen View Post
And yes, this is one VERY ACTIVE forum.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
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Use a socket to turn the tap... There's room.1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/Comment
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retapping
Well......thanks to those of you who posted with enthusiastic ideas about how to handle this. Maybe things don't work for everyone, but sometimes a try is worth it. Finished up removal of the excess prior bolt in the head. Got an 8mm stud and retapped the hole. Used a very small amount of JB Weld around the last couple threads that actually entered the head to ensure none got into the engine. Allowed it to fully cure and then took a stainless washer that fits the stud to a tee. JB welded that onto the outer edge to ensure a good seal. Fired up the bike and all is holding well. No evidence of any weapage. Maybe it won't hold long term but for the moment the advice helped.
ToddComment
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true test will be ride it about 50 miles and get it damned good and hot. then let it cool..repeat the heat and cool cylces a few times to see if it hold up thru the expansion and contraction cycles. let us know.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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You would be better off with Loctite than JB weld on the thread.Current:
Z1300A5 Locomotive (swapped my Intruder for it), GS450 Cafe Project (might never finish it....), XT500 Commuter (I know - it's a Yamaha :eek:)
Past:
VL1500 Intruder (swapped for Z1300), ZX9R Streetfighter (lets face it - too fast....), 1984 GSX750EF, 1984 GSX1100EF (AKA GS1150)
And a bunch of other crap Yamahas....Comment
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threads
Yep...you are right about that...should've been smart enough to think about it but I got ahead of myself. If the epoxy based JB breaks down, I will pull the stud and use a silicone based sealant next. So far, so good.Comment
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