Crank damper bolt

My timing belt has gone bang, which is not a huge worry but I cannot get the large bolt undone on the crank damper. Have had a locking tool on it with a 4 foot scaff bar on my long breaker bar and all I managed to do was bend my locking tool and shear a bolt that held it on.

Anyone got any ideas of something else I can try???

it needs to be shocked - jam a strong breaker bar on the chassis and flick the starter, having first taken the fuel solenoid wire off

I did it like this today, using an axle stand to prop the end of the bar up to the underside of the chassie. Worked a treat.

its a scary procedure but it works a treat!

OK, have tried using the engine, have tried my air gun (although not convinced this is working correctly) have tried heating it up and bouncing on it with big bar and still no joy.

What if I cut the washer off would that help relieve the pressure on the bolt and then let it come undone?????

What does it do when you try and use the engine?

the engine mount flexes and pushes the engine to one side.

you got problems the only other thing is to put it in 5th gear and get someone to put there foot on the brake giving it some good hard wacks with a lump hammer can help to

I think you're going to have to remove the starter motor and wedge something into the starter ring to lock the crank solid. Otherwise, there's too much give in the transmission for a hammer to be effective at shocking the bolt loose - it will just "bounce".

But borrow a know good air gun and try that first. My cheapo air gun undid mine yesterday - it took a couple of goes though, whilst my little compressor re-filled the tank.

You might be able to lock the crank via the starter ring, through the wading plug hole - dunno, never tried that way.

i mean hit the bolt its self not the bar to undo it

Finally got the thing undone, just as I was about to call the scrap man to take the landy out my sight!!!
I ended up cutting 3 grooves into the washer beating it with a big hammer and chisel then bouncing on my breaker bar with scaff bar slid over it.
This after breaking 2 breaker bars, heating the life out of the bolt and washer and trying just about everything.
Now just need new washer and a good clean up.