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BROKEN EXHAUST STUD

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kenny z9fighter

BROKEN EXHAUST STUD

#1 PostAuthor: kenny z9fighter » Thu May 17, 2007 7:35 pm

HI TO ALL
GOT A 74 Z900 A4
WHEN FITTING THE EXHAUST
I STRIPPED THE THREADS ON ONE OF THE CYLINDER HEAD EXHAUST PORTS
DRILLED AND TAPPED IT,FITTED A HELICOIL
PUT THE EXHAUST,TIGHTENED THE NUT AND IT PULLED OUT THE HELICOIL DAMAGING THE CASTING
HAS ANYONE TRIED ANY OF THE CHEMICAL METALS AVALIABLE?
I DONT KNOW IF IT CAN BE WELDED AND REDRILLED
I DONT REALLY WANT TO TAKE THE HEAD BACK OF AS IT HAS BEEN FRESHLY REBUILT AND IS NOW A 1075 WISECO BIG BORE
SO WOULD MEEN A NEW HEAD GASKET ETC
ANY IDEAS?
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Hobbo
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studs

#2 PostAuthor: Hobbo » Thu May 17, 2007 8:50 pm

HI KENNY
DID THAT ONCE MYSELF EASIEST OPTION I FOUND WAS TO GO UP TO M8 HELICOIL AND DRILL THE HOLE IN YOUR COLLAR TO SUIT NEW M8 STUD/ BOLT JOB DONE

PHIL
Never Dull in Hull Watch no 31
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kenny z9fighter

alredy that size

#3 PostAuthor: kenny z9fighter » Mon May 21, 2007 9:35 pm

hey phil
think they mustve been changed at some point?
there already m8
bummer!
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Pigford
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Location: North Dorset

#4 PostAuthor: Pigford » Tue May 22, 2007 3:56 pm

Any decent engineering shop can weld it & then tap it out, but its head-off time by the sound of it :cry:

Try & google for heat resistant repair compound, there must be something available in this day-and-age :?: Some of those instant metals are good :wink:
And on the 7th day... Zeds were created!
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Iain marshall
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#5 PostAuthor: Iain marshall » Tue May 22, 2007 4:06 pm

Kenny pm me your phone number and i'll give you a call
Got the Rex, just the Kat to get now...
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