Jeep Wrangler Forum

Jeep Wrangler Forum (
-   YJ Tech Forum (
-   -   Flywheel vs. Crank Position Sensor...Help!! (

sjkorenek 06-02-2011 05:41 PM

Flywheel vs. Crank Position Sensor...Help!!
:surrender: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 !!!???:surrender:

Garyk 06-02-2011 05:55 PM

What flywheel are you using, the original?

You might have got the wrong motor...

sjkorenek 06-02-2011 06:11 PM

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.

jerry3360 06-07-2011 11:03 PM

i have a 89 yj im parting out so if you need anything call me 604 378 7497 my name is jerry

Garyk 06-08-2011 12:05 PM

Look at the engine they sent you and see if the number code is the same for your jeep, I bet it isn't.

sjkorenek 06-08-2011 03:37 PM

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

Garyk 06-08-2011 06:06 PM

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/

All times are GMT -5. The time now is 06:23 PM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.