Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum > Flywheel vs. Crank Position Sensor...Help!!

Join Wrangler Forum Today

Thread: Flywheel vs. Crank Position Sensor...Help!! Reply to Thread
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Jeep Wrangler Forum 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.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
06-08-2011 07:06 PM
Garyk Your engine code on the tag in the jeep will be the last three letters/numbers of the second row down. They made both the 2.4 and 2.5 between those dates.
Take a look at this, hope it helps/
06-08-2011 04:37 PM
sjkorenek I like that idea Gary.. I have the serial # off the new motor, and of course my VIN. But wouldn't know where to cross reference. The tag on the rebuilt also says 87-95 Jeep. To me that covers a lot of ground. If you or anyone can give me any insight. Steven 979-561-8343
06-08-2011 01:05 PM
Garyk Look at the engine they sent you and see if the number code is the same for your jeep, I bet it isn't.
06-08-2011 12:03 AM
jerry3360 i have a 89 yj im parting out so if you need anything call me 604 378 7497 my name is jerry
06-02-2011 07:11 PM
sjkorenek How many 2.5 4 cylinders were made in the 89 time frame? Asked the rebuilder if a manual or automatic would matter, they said no. Is there such a thing as different flywheels?? But yes, the orginal flywheel. Gaps in the teeth at 180 degrees. I've noticed the six cylinders have three gaps.
06-02-2011 06:55 PM
Garyk What flywheel are you using, the original?

You might have got the wrong motor...
06-02-2011 06:41 PM
Flywheel vs. Crank Position Sensor...Help!!

Intalled a rebuilt 2.5 in my 89 Wrangler. The gaps in the teeth on the flywheel do not correspond to 90 degrees off of TDC from the Crank Position Sensor. Not suprising that the new motor runs like hell. The flywheel will only go on one way,,,so I guess I'm just screwed. Has anyone out there ever heard of such a thing. The timing isn't adjustable so the CKP has to jive with the gaps in the teeth. Anyone who can help !!!???

Posting Rules
You may post new threads
You may 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

All times are GMT -5. The time now is 12:29 AM.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC