Engine Miss Fixed - 4.0 Head on 4.2 Block - Off-Road Forums & Discussion Groups
Jeep-Mid-Sized All discussion of mid-sized Jeeps: Cherokee, Grand Cherokee

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 03-25-2002, 06:06 PM
Posts: n/a
Engine Miss Fixed - 4.0 Head on 4.2 Block

As a refresher...I bought an 89 Cherokee for $300 that had a blown engine. I had the head rebuilt and I put it on top of an 88 Wrangler 4.2 block I had with only 5K miles on it. Overall, everything worked except for the engine cutting out in a narrow RPM/throttle range. I tried everything. I finally gave in and took it to the jeep dealer.

The timing was off. The mechanic had to renotch the dist to get it properly timed for TDC on piston #1. It appears that there is just enough difference in the blocks to throw it off. He also had to replace a component in the dist. I plan to go by and talk to him and see how he was able to measure the timing. There are no timing marks that I know of.

Anyway, she now runs fine. This week I pick up my 4" lift and related goodies. Time to get this baby ready for the trails.
Sponsored Links
post #2 of (permalink) Old 03-25-2002, 06:48 PM
Join Date: Sep 2001
Location: Southeast PA
Posts: 609
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Engine Miss Fixed - 4.0 Head on 4.2 Block

awesome. sounds like you picked up a hell of a deal.
JeepCrazyKid is offline  
post #3 of (permalink) Old 03-25-2002, 11:43 PM
Posts: n/a
Re: Engine Miss Fixed - 4.0 Head on 4.2 Block

He/ She may have dead-timed your engine. I'm not sure about re-notching of the distributor. Its usually a last-ditch effort, or done at time of rebuild. Very time consuming if not done during rebuild.
Sponsored Links
post #4 of (permalink) Old 03-26-2002, 12:03 AM
I Might Just Know What I'm Talking About
tazman85305's Avatar
Join Date: Mar 2001
Location: Arizona
Posts: 1,875
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Engine Miss Fixed - 4.0 Head on 4.2 Block

What was the final cost for the dealer repairs, if you don't mind sharing this info?
tazman85305 is offline  
post #5 of (permalink) Old 03-26-2002, 05:35 PM
Posts: n/a
Re: Engine Miss Fixed - 4.0 Head on 4.2 Block

Cost $226, including new cap, rotor and some part in the dist. I'm stoping by there this evening to talk to the guy and see what he did exactly.
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome