Jeep Builds Make your own jeep build thread here, discuss and view jeeps here. All Jeep models are welcome here.

Rebuilt 4.0 crank not turning

Old 09-11-2017, 02:11 PM
  #1  
Newbie
Thread Starter
 
Join Date: Sep 2017
Posts: 1
Model: Cherokee
Default 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.
Jeremy Fine is offline  
Old 09-11-2017, 03:26 PM
  #2  
CF Veteran
 
Jeepin'_Aint_EZ's Avatar
 
Join Date: Jan 2012
Location: Ocean County, NJ
Posts: 2,208
Year: 1998
Model: Cherokee
Engine: 4.0L
Default

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.
Jeepin'_Aint_EZ is offline  
Old 09-11-2017, 10:18 PM
  #3  
Newbie
 
mattyg's Avatar
 
Join Date: Jul 2017
Location: Victoria
Posts: 17
Year: 1990
Model: Cherokee
Engine: 4.0
Default

Jesus Christ, pull the engine and try again. Use plasti-gauge to measure bearing tolerances.
mattyg is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: