Crank bolt is being a PITA?

When I put it on it about a month ago went on with 135 ft. Lb. Now I'm having to pull the front off the motor cause the fuel pump Esentric isn't working the pump.. I've tried a BFH hammer on a 1/2" ratchet NOthing.. Tried a 1/2 inch elect. impact wrench suppost to do 230 Ft. LB. (cord not battery) nothing? Yes I went CCW.
I have heard of people using the starter and turning the motor after the wrench is properly posisstioned ... is that something that works?? and should I try it??
thanks

2015-04-19T06:28:42Z

Motor is fresh, only cam brake in and 12 blocks of driving. 1975 plymouth Fury 318

FlagMichael2015-04-19T09:11:37Z

I do not recommend the starter bump method - it is not very controllable and if my method does not work the starter bump will cause horrific damage. Once you get the flywheel or flex plate jammed, put a floor jack under the ratchet handle and use the jack against the car's weight to loosen it. If the front wheels come off the ground you know only an air impact (I use a 600 ft-lb dual hammer impact) will do the job.

?2015-04-19T06:40:27Z

Put a box-end wrench around it, use a long handle as an extension to the wrench, have two people team up on it: one person exert the turning force on the bolt while the other person is striking directly down on the bolt head with a hammer to break thread friction.

?2015-04-19T06:28:53Z

Do NOT use hammer type force to remove the crank bolt. Use slow, deliberate force only. Sudden trauma to the bolt may cause it to break. And you don't want that now, do you?
Put an extension on your crack handle, and have the flywheel blocked so the crank don't turn, and you will get that bolt out.

?2015-04-19T06:34:43Z

your going to need an air compressor and use one of those heavy duty air impact gun. preferablliy 400+ ft. lb. You can try using a pulley chain to hold the the crank pully in place, and use a racket with a long breaker bar. but you will risk cracking or chipping the pulley. which will is bad for the belt. using the air impact gun is the best way to take that bolt off.

mdk68gto, ase certified m tech2015-04-19T14:51:37Z

bumping the starter may not do more than harm. find a way to hold the flywheel/flex plate in position and then use a ratchet and if you can find one, a longer steel pipe around the handle of that. it does wonders to increase the torque applied.

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