Thread: Heeeeeelp - Td5 Headbolt Broken - Need A Mobile Tig Welder

Dave,

Any time you can give me will be brilliant!

Is it worth me trying the IRWIN bolt extractor in the mean time, or this is one of those acquired skills.....?

Auke

Yep id go the weld a big nut on trick with plenty of heat with a mig gassless will do tho id say you will get a stronger weld with gas and a good 200amps worth of weld you should only need 1 good hot spot and it will have enough strength and to stop the spatter use the mig inside a tube and wear a glove to cover the end were you put the gun down inside the tube this will stop spatter going every were ...

With the mig and the nut just sit it over the top of what ya have put the tube over the bolt head stick in the nozel cover with gloved hand and pull the trigger for a few secs to get a nice hot spot and you will get it this way

Hi
If you mean Epping in Sydney then I am reasonably close and have a TIG

BUT
I would agree with Lokka. Get a big nut that sits down over whats left and fill the top with weld. This is probab;ly better done with a mig than a tig. Or even a stick. Could also use a piece of flat bar or square bar, anything you can get a grip on.

A few problems could be the very high carbon content of the bolt an the annealing of the top of the bolt and shaft.

Other option is the die grinder and burr and shape the top to take a socket or cut a slot

Good luck.

PM me if you really get stuck but would be friday night or weekend before I could visit.


james

Originally Posted by Aukedrdw

Dave,

Any time you can give me will be brilliant!

Is it worth me trying the IRWIN bolt extractor in the mean time, or this is one of those acquired skills.....?

Auke

Buy the set (and me some too ) and gently have a go Dont damage the shoulder doing it As I'll be using that as part of the weld base...

In the mean time you need to do some prep work as my time will be very limited and I will be needing to move like greek lightning.

1st grab a metal can and cut a hole in it a little bigger than the bolts shoulder trim and beat it into shape and slide it over the bolt.

then get a fire blanket (or an old wool blanket) and cut a small hole in it that will allow access to the bolt but cover the rest of the engine and bay.

All the prep work for welding needs to be done too.

you will also need a nut that is a tap on fit over whats left of the head and has a hex that is smaller than the shoulder of the bolt. If that means drilling out a smaller bolt so be it.

Ive got a couple of butchers tricks I will try before I pull out the welder but Im guessing its going to come to that so the more prepwork youve gotten acomplished the more time Ive got to be nasty to it.

Hey Auke

Justin here.

Mate one thing you can try is to grind off the rest of the damaged hex and then gently grind a small channel across the bolt say 10mm wide and a couple of mm deep. Then you can weld on a piece of 10mm wide flat bar by 30 - 40mm high. This will give you a chance to get a 15 or 18" shifter on it. Dont forget that a good arc or stick welder is just as good or better ( in the right hands ).

Just a thought mate.

See you over xmas.

Justin

Get a half inch drive 8mmish hex drive and mig it on, gives you the drive for a breaker bar

Or even a nut as others suggets, a reasonable mig weld will hold it on easily, tig will be a pain

whats wrong with using a decent set of vice grips on it.......?




blknight.......how long you gonna be in sydney for.....?

too bloody long.....

I'll be whistle stopping through on saturday on my way to canberra I'll be coming from dobbos so I have maybe 4 hours up my sleeve to do a consignment drop, attack this head and get moving.

I Might be stopping off on the way back up tho.