Crankshaft Bolt

Chuka, this may be just a silly idea but I have managed to lock up the old 2H my troopy once had by pouring new oil too fast into the rocker cavity. Had to remove every glow plug to get the stuff out and the engine to turn over.

Now, my idea is to do the reverse. Pull ot a glow plug or two and squirt engine oil into it, replace glowplug. I dare say you will need more than 441nm to turn the crankshaft over now.
But, do remove the glow plugs again before you try to crank the motor with the starter!

No guarantee for that idea though.

Klaus

Hi Chuka mate under no circumstances fill the pots with oil then try and tighten bolt. This is called Hydraulic lock up and not good for any engine. As the other reply states try removing starter motor and wedging converter drive plate teeth. If all else fails do what 99% of us mechanics would do get a good quality 1/2 inch drive impact gun make sure your compressor is supplying at least 100psi then tighten the sucker up.
Sometimes when you don't have all the means to do the job correctly with the specified tensions you have to resort to a impact gun. People will knock this method but I have done this on occasions over the last 17 years without problem. The main thing is to be aware and know the feel of how tight the bolt is, this only comes from experience.
Cheers Worm.

Chucka,
I put a strap wrench around the crankshaft pulley and wedge the arm of the strap wrench in the chassis somewhere. Has to be a good quality strap wrench not one of the ones you use for taking the oil filter off. Even then I broken a strap, it broke "nicely" and didn't snap suddenly causing me to fall into the engine bay or anything just in case you have a fear of this. Some of the hire people hire these out, saves paying for something you'll only use once.

Not knowing landcruisers, but can you take the sump off and chock the crank with a piece between it and the block.
Or
If you have a removable belts pulley, make a tool that uses its bolt holes to restrain the crank harmonic balancer which I am guessing is keyed to the crank. The tool should be long enough to rest against the chassis rail.

John D