Rebuilt 4.0 crank not turning
#1
Newbie
Thread Starter
Join Date: Sep 2017
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Rebuilt 4.0 crank not turning
So I recently rebuilt my 242 i6 because of a broken flex plate. Figured the motor was out so might as well. But using king engine bearings. Every time I torqued a cap down to 33 ft lbs, the crank would stop turning. I set it to top dead center for the ignition timing and put the engine in hoping the starter could crank it but won't. Just hear one click but nothing turning. Any help will be greatly appreciated.
#2
CF Veteran
Join Date: Jan 2012
Location: Ocean County, NJ
Posts: 2,208
Likes: 0
Received 3 Likes
on
3 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L
Did you check your bearing clearances?? You can't just throw new bearings in, torque down the caps, and hope everything's going to work out. There is measuring involved. Even if you were able to get the engine to somehow crank and start, those bearings would have been toasted shortly after without clearance for oil.