Pirate4x4.Com : 4x4 and Off-Road Forum - Reply to Topic
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > Brand Specific Tech > Jeep - Non Hardcore > bent rocker arm bridges?

Thread: bent rocker arm bridges? Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
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 Pirate4x4.Com : 4x4 and Off-Road 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:
Please select your insurance company (Optional)


Additional Options
Miscellaneous Options

Topic Review (Newest First)
07-27-2019 06:54 AM
Marty, SoCal The tight pushrods were probably due to the lifters being full with oil, once you rotated the engine, they bled down so the pushrod would then spin easier.
07-26-2019 06:51 PM
Gordon-B Personally, I doubt it, but anything is possible.

I had a 4.0 head that was so warped it took 20 thou to get it flat, and it went back together without issue, no noises etc.

You could however find out relatively easily and cheaply with an adjustable pushrod.

Install and adjust it to correct lash, then pull it and compare the length to factory specs.
07-26-2019 09:41 AM
ItsaVanMan yeah my cheapness got the best of me, that's what I did. I've still got a clatter, all the pushrods looked good, so did the arms, just those bent bridges.

here's a weird question I have. since this motor was apart and supposedly rebuilt, is it possible that they surfaced the head, thus making it shorter, putting too much preload on the lifters? and possibly weakening the spring inside the lifter? once I reinstalled the pushrods, they were tight until I rotated the motor over a few times, then they spin like they are supposed to.

any thoughts?
07-15-2019 01:13 PM
Marty, SoCal Whoever tightened them down last didn't hold the bridges square while they torqued the bolts holding them to the head,

As the final torque is reached on the bolt, it tends to make the bridge twist unless it's held square.

You should be able to untwist the bridges, make sure you torque them to the proper spec of only 21 Ft/Lbs.
07-14-2019 09:47 AM
bent rocker arm bridges?

got a 4.0 with a clatter, it goes away when I bring the rpms (and oil pressure up) pulled the valve cover and found multiple bent rocker arm bridges, and missaligned rockers, what caused this? I losened them on the compression stroke, and I was able to rotate the pushrods, so no tension on the rockers.. anyone have any suggestions? going to replace them, but I wanna know what caused this.. Thanks folks!

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 -7. The time now is 09:33 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.