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[The Red Baron]

If it's any consolation, I would imagine these are stretch bolts which should be renewed when disturbed anyway, so yes, weld a nut onto it, or grind it off and get a new set of bolts.

Either way, they'll come easily since the tightness comes from the clamping force generated under the head, so once this is gone, the thread will just be loose in the end of the crank.

TORX fasteners are great for automated assembly in the factory, but not so easy to remove with hand tools.

O yes I try to do some home work before starting projects on this car so I've already ordered my bolts #09126505 from gmpartsgiant at2.90 a pop just waiting for them to arrive. I don't know where to find a good manual on this car I searched but it would probably be a Vaxhall thing. Saw a repair manual on a EU e-bay for I think omega b or somrthing like that but it looked like a children's fairy tail size book so I passed. Is it just me or does everyone else thinks The Red Baron looks like Bruce willis

lol. a bit. 

[78bex]

If it's any consolation, I would imagine these are stretch bolts which should be renewed when disturbed anyway, so yes, weld a nut onto it, or grind it off and get a new set of bolts.

Either way, they'll come easily since the tightness comes from the clamping force generated under the head, so once this is gone, the thread will just be loose in the end of the crank.

TORX fasteners are great for automated assembly in the factory, but not so easy to remove with hand tools.

O yes I try to do some home work before starting projects on this car so I've already ordered my bolts #09126505 from gmpartsgiant at2.90 a pop just waiting for them to arrive. I don't know where to find a good manual on this car I searched but it would probably be a Vaxhall thing. Saw a repair manual on a EU e-bay for I think omega b or somrthing like that but it looked like a children's fairy tail size book so I passed. Is it just me or does everyone else thinks The Red Baron looks like Bruce willis

If it`s of any help  most auto-parts stores in the UK sell a series of workshop manuals published by the Haynes Group. Looking at mine the publishers number is ISBN 1 850960 510. This covers the 2.0 ltr / 2.5 ltr & 3.0 ltr  gas engines. An additional note refers to 
Haynes North America, Inc
861 Lawrence Drive, Newbury Park, California 91320, USA

Bear in mind this info relates to a publishing date of 1999. 

[makeitsnappy]

Thank you so much 78bex that's very important information because in America you cannot get that repair manual in any auto parts store over here. Even if you look at the back cover of Haynes repair manuals over here for the listing of other vehicles, its not listed.

[cnj]

just as a point of interest, if you put a 2' breakerbar on a 3/8" -1/2" adaptor the only thing your likely to achieve is the shearing of the 3/8" shank, have been there and done that while changing the head on a 2.0 xev engine some years ago !

[Webby the Bear]

just as a point of interest, if you put a 2' breakerbar on a 3/8" -1/2" adaptor the only thing your likely to achieve is the shearing of the 3/8" shank, have been there and done that while changing the head on a 2.0 xev engine some years ago !

Ok.

Wish I'd never commented! 

[serek]

???I guess grinding it down would be an option but then that would be at a point of no return and then I would have to figure what I could use to bite hold of the stud to completely remove it. That is coming too close to having to replace the crank and if that where the case I would just junk it.

when you grind them off they will come with fingers

;)yeah Serek I get your point but I would be at a loss at figuring out what tool II would use to bite onto the fingers

i had this problem on 5 maybe more omegas so far, and always work  that way

[makeitsnappy]

 Hello Omega Owners Forum Folks! Heavens to Mergatroid Just wanted to give a little update, I went ahead and got 5 of the 8 bolts off by doing what webby the bear advised and was able to achieve that without twisting off the 1/2"to 3/8" adapter. But I got the other 3 off by drilling down the head of the bolt and using a screw extractor. So now I've replaced the rear main seal and will be torqueing the flywheel back on in a day or so. Thanks 78bex I google that Haynes manual on the PDF site no need to buy it now I'll continue to keep up appearances after more progress is made

[TheBoy]

Great news makeitsnappy

[Webby the Bear]

Hello Omega Owners Forum Folks! Heavens to Mergatroid Just wanted to give a little update, I went ahead and got 5 of the 8 bolts off by doing what webby the bear advised and was able to achieve that without twisting off the 1/2"to 3/8" adapter. But I got the other 3 off by drilling down the head of the bolt and using a screw extractor. So now I've replaced the rear main seal and will be torqueing the flywheel back on in a day or so. Thanks 78bex I google that Haynes manual on the PDF site no need to buy it now I'll continue to keep up appearances after more progress is made

Well done mate 

Never twisted an adaptor personally but I could see how that could happen 

[TheBoy]

Never twisted an adaptor personally but I could see how that could happen 

Weakling.  Good job Halfords guarantee them for life, I've bust loads (but not as many as the smaller one that comes in the pack)

[Webby the Bear]

Never twisted an adaptor personally but I could see how that could happen 

Weakling.  Good job Halfords guarantee them for life, I've bust loads (but not as many as the smaller one that comes in the pack)

Definitely.

Broke two T55 (or T50, whatever they are) bits on head bolts though.