Rb20det bolt snnaped off in flywheel

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russ1111, Jan 14, 10:32pm
help snapped off flush have tried easy out and it broke off in the bolt. any sugestions would be appreciated.

40wav, Jan 14, 10:36pm
Can you weld a bolt to it (you'll need a mig) then carefully undo it!

owene, Jan 14, 10:39pm
Remove flywheel completely.

Then use one of these http://tinyurl.com/3e6t3fh to extract the remaining stud.

russ1111, Jan 14, 10:40pm
no its not quite flush or sticking out its back in a bit

russ1111, Jan 14, 10:41pm
explain a little more owene!

owene, Jan 14, 10:41pm
But the flywheel is still on the motor!

40wav, Jan 14, 10:44pm
Someone good with a mig may be able to place dots of weld on the end of the bolt until another bolt can be carefully welded to that.

40wav, Jan 14, 10:46pm
Wow - Its been years since I had to use one of those

owene, Jan 14, 10:47pm
You'd need to be pretty bloody smart with a mig to get adequate adhesion but not weld the flywheel at the same time!

To russ1111: is the flywheel still on the motor! If so, remove it. You should then have at least something protruding to carefully undo. But, I'd give it a good soaking with WD40 overnight before attempting to undo it.

owene, Jan 14, 10:48pm
Yeah they are a wonder tool aren't they - sort of thing you use once in ten years but if you don't have one, your toolkit is incomplete.

40wav, Jan 14, 10:51pm
owene wrote:
You'd need to be pretty bloody smart with a mig to get adequate adhesion but not weld the flywheel at the same time! quote]

Yes, much skill and care would be needed.

russ1111, Jan 14, 10:55pm
whats that tool thing called!

russ1111, Jan 14, 10:56pm
yes flywheel is off

russ1111, Jan 14, 10:59pm
there is nothing protruding out :(

owene, Jan 14, 11:01pm
OK, if nothing is protruding out, can you see/feel the back of the flange that the flywheel bolts to!

owene, Jan 14, 11:03pm
The tool is called a trichoto excruder. Doubt that Repco would have one as it's a bit more specialised - nasa type suppliers might stock them. But you may not need it yet - let me know about #15 above.

40wav, Jan 14, 11:03pm
Have a closer look.

owene, Jan 14, 11:04pm
Yep at the flange on the motor. Is there any clearance BEHIND it!40wav - you're getting off subject at this stage.

40wav, Jan 14, 11:08pm
Agreed. All I meant was he will have to determine if its the metriperial version or the impetric one. I guess it depends on the month of vehicle manufacture.

russ1111, Jan 14, 11:08pm
any clearence behind what! sorry im not that onto it lol

falcon15, Jan 14, 11:09pm
if you have snaped a easy out off in the hole you drilled you will need to drill that out with a tungsten drill bit. The remainder of the bolt shouldnt be to tight as the peice that snaped off would have been holding all the tension on the bolt. i would heat the bolt up a bit with the gas torch then try using a quatily easy out

russ1111, Jan 14, 11:10pm
thanks falcon will give it a go

russ1111, Jan 14, 11:21pm
cant get the easy out out.

owene, Jan 14, 11:21pm
Whoa, slow down. Heat around there ain't smart as there will be neoprene seals etc and unless you really know what yer up to.

Somehow I also doubt that even a tungsten drill will touch an easy out.

OP: is the rear of the flange (ie not the side that the flywheel mounted on) visible! In other words, can you see the non-head end of the busted bolt protruding thru the rear of that flange!

owene, Jan 14, 11:24pm
Well I know from experience that if the vehicle is a Jap one he'll need the metriperial one, if it's Yankie or European, it'll be the impetric one. I got mine as a pair, balanced and nitrided to match each other. Wouldn't be without them.