2.5 is knocking - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 05-19-2013, 05:01 PM   #1
Join Date: May 2013
Posts: 2
Unhappy 2.5 is knocking

just bought a 95 yj with the 2.5.1st jeep.122k miles. i get it home and im hearing a knock and eventually i figure out i can feel it in the distributor and this only happens at operating temperature. so i put a new one in hoping that its not cam related. there was excessive play in the old distributor but a new one didnt fix it and if i pull the new one towards the front of the vehicle and tighten it down at the same time the noise and and related vibration is slightly diminished. anyone know if the cam or the oil pump is more likely to cause a knock? is this a common problem? new to jeeps and new to online threads so my apologies if i am posting in an incorrect area or bringing up an old topic.

hesswington is offline   Quote
Old 05-19-2013, 05:15 PM   #2
Join Date: Aug 2011
Location: north of St.Franisville La.
Posts: 2,650
Send a message via Yahoo to Nubby55
The Distributor really should not have slack to move it but may be .010", if never heard of this.
Was the Gear on the old one worn a lot?

Nubby55 is offline   Quote
Old 05-19-2013, 05:28 PM   #3
AllMudd's Avatar
Join Date: Apr 2013
Location: SoCal
Posts: 1,610
I would look at wear on he gear of the distributor like previously stated. Also it could be the oil pump, thicker oil when cold less room for the pump to rattle around. Then when it warms up the oil thins and gives the pump room I guess could be a solution. But either way very uncommon of a place for knocking.
AllMudd is offline   Quote
Old 05-19-2013, 05:30 PM   #4
Join Date: May 2013
Posts: 2
it doesnt have much room to move but pulling it forward does cause it to quiet down. the old distributor has about .020" vertical play roughly the same side to side and the gear looks to have normal wear. the knock sounds to be half engine speed so i would guess cam unless oil pump rotates at the same speed.....?
hesswington is offline   Quote

Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 05:24 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

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