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boken exhuast stud and boogered thread tower.help!
- trianglelaguna
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- New and improved - extra strength
so like an idiot i double nutted one ex stud and removed no problemthat exhuast port s fixed...then put a vise grip on the next inside ports stripped one and broke it clean off flush with the head (the inside one on the frame down tube right by the clutch cable).......
not wanting to interupt my f&^%$ing stupidity and since i was on a roll i tried to easyout the sucker and since i cant get a perfect straight drilling shot at it (frame) i started to off- set the starter pilot hole and jumped it out a tad into the aluminum no problem next size up easy out 5/32 pilot and presto first three threads are now blown out in the thread tower and the stud is still in there......
i have the other rebuilt 1045 z-1 motor to go in and was gonna wait till after the races to swap......oh weel ,find out if it starts i guess
so now i gotta pull the motor and take a photo of the stud/and aluminum dammage while on the bench and get your folks take on it.....before i show off more of my talent on it...
what a drag ,,,,we were gonna ride to the boardwalk in santa cruz.....time to take the car now...oh well sandals,c.d's ,sunroof and sunshine...i guess i outta not ewhine about the bike too much......any help or folks been down this path and fixed it would be killer..hoping to fix this motor first......peace craig
1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife
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- Kawickrice
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- After Monday & Tuesday, even the calendar says WTF
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I had the same problem on a suzuki two stroke many years ago that I never could fix. I T-boned a dump truck on a 900 back in the 80's and it snapped the frame at the neck, and put the Kerker header firmly embeded into the motor and broke the studs flush. When I removed the motor from the frame I was able to use an easy out and conquered every last one.
With a little patience you will prevail.
73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL
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- kano
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- Not Another Bloody Limey!
your not alone, time inserts are highly recommended by ppl here.
NEW TIME-SERT M8 X 1.25 Metric Thread Repair Kit
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NEW BIG-SERT By TIME-SERT M8 X 1.25 Thread Repair Kit
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- APE Jay
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Jay
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- trianglelaguna
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1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife
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- AXL
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- toadson
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Easy outs just make removing broken bolts worse imo. Theyre hardened and you cant drill them out once they break.
79 KZ1000 LTD. Mikuni VM26 w/ accelerator pump. 4 into 1 header. Stock intake setup. GS1100 Swingarm, My swap thread: kzrider.com/index.php?option=com_kunena&...d=5&id=210872#210872
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- trianglelaguna
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After my luck with easy outs I will never use them again. What I would try and do is find a washer that fits around the broken stud and a nut. Weld the net to the stud and try to bring it out that way. It can be tricky, but if you have a washer on there it should keep you from welding to the head or anything like that.
Easy outs just make removing broken bolts worse imo. Theyre hardened and you cant drill them out once they break.
an idea except on this one it is flush with the aluminum thread jackets at best....i'm a carpenter so i am aware of the quick/snap/dam/bits if the drill gets too fast or it catches or just fails...your screwed again but worse......gonna post pics when the motors out and then wait a day to do anything and read reply's.....so i dont make it worse f=befroe seeing what folks think...it is kinda boogered but we shall see it on the bench better....good tip though...kinda thought the same maybe
1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife
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- Old Man Rock
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Ok, not sure but from your profile notes where this is the Z1?... If so, my KZ900 has 6mm exhaust studs and the earlier versions most likely do as well.
Over at REDLINE, they have 8mm stud replacements, maybe Jeff @ Z1 has them as well, not sure... Anyhoot, 8mm replacement studs are available so the hole would requiring boring/taping in this concept anyhow.
Now that you may have calmed down a little (I know, feel your pain) take the head to a machinist and get it corrected. Probably under a hunsky ($100) and all better...
I like most of us want and try to do ALL work myself but sometimes you just need to bring in the pro's... They not only have the knowledge but the required tools that we just don't have...
Hope it works out...
OMR
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
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- donthekawguy
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Rathdrum Idaho
1971 Kawasaki g3ss
1972 Yamaha R5 350
1965 Suzuki Hillbilly
1964 Yamaha 125
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- trianglelaguna
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You make it hard to feel sorry for you when you talk about the beach and sun and all that. :laugh: Well it was 73 here today so I guess I can only complain about the beach part. :laugh:
well i will be sure and act slow on this one from here...wait hold on a sec........................o.k sorry about that...some gals a playing beach volleyball nearby and they needed some more sun lotion rubbed on their bodies...what a hassle....
now if i could only concentrate to type ,what with the noise from the porsches and zx10r's running around here...any how i'll try and get the kz motor on the bench this weekend and really thank folks for their responses....peace craig
1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife
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- Mark Wing
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Jesus loves you Everyone else thinks your an ***
77 KZ650 C1 with ZX7 forks, GPZ mono rear, wider 18 police wheels and Yoshimura motor.
Yorba Linda Cal.
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