Removing Crankshaft Bolt on 4.0l

[souske]

I use the "ghetto impact method" described by 2stix most of the time instead of waiting for my compressor to fill, and hauling out the impact.

I find using a rubber mallet works better than a metal hammer. Big head so you can't miss, you won't marr up your tools, and the rebound of the rubber seems to help as well.

OP: is the flywheel/flexplate still installed?

Edit: too slow

 

[200SportXj]

No flexplate installed yet, but I do have it in a box. Just saying haha.

I tried hammering off that damn harmonic balancer, I dont need it anyways. but it wont budge. I just want to get on to rebuilding this motor.

I pulled the mains, and rod bearings and I only found one slightly scored rod bearing. Besides that the motor is very gunky. Think I will just get the block cleaned. and replace all the bearings

 

[samger2]

If you do rent a puller try to get one that threads into your harmonic balancer vs one that works like a gear puller. Just easier to work with and you don't have to worry about one of the legs slipping off because you don't have it set right.

 

[200SportXj]

Neighbor borrowed me one yesterday, Glad I had my impact.

I have a 12 gallon tank and it took 5 full fills of air before that balancer came off. By hand it would have been damn near impossible lol

 

[200SportXj]

Its all apart. Cranks is mint. Found one rod bearing that was questionable and 2-3 pistons had some marking on them.

But the block has nice cylinder walls. just gotta get it cleaned and prolly go 2 or 3 over to be safe

 

[2stix]

i just replaced the rear main seal and got to look at the rear main bearing and was totally amazed how little wear there was on a 230K+ engine. i think these things can live forever.

 

[200SportXj]

Yup everything looked nice.

I got a line on some 258 rods and crank so hopefully I can get those soon