Smokeyyank Posted June 27, 2019 Share Posted June 27, 2019 Not for the MJ but figured it would be worth the ask. I took my WJ to get an alignment the other day and the camber is off. They did check the ball joints are there was no excessive play or slop in them. Wheel bearings are fine as well. Guy mentioned the axle housing might be bent but I find that odd as it has never been in an accident and prior to me doubtful it was ever wheeled hard enought for that to happen. Any other thoughts or ideas? Link to comment Share on other sites More sharing options...
eaglescout526 Posted June 27, 2019 Share Posted June 27, 2019 Long shot. Maybe the coil spring isolators or coil springs themselves. I know when I replaced my isolators the front end seemed to have straightened up a bit more so it’s a possible thought. Link to comment Share on other sites More sharing options...
Pete M Posted June 27, 2019 Share Posted June 27, 2019 how much lift? Link to comment Share on other sites More sharing options...
Smokeyyank Posted June 27, 2019 Author Share Posted June 27, 2019 All new isolators 3" lift. I did have to reweld the coil perches but those where not off enough to create any camber issues. Link to comment Share on other sites More sharing options...
Pete M Posted June 27, 2019 Share Posted June 27, 2019 I see your caster is off. does the camber change a bit as the axle rotates? Link to comment Share on other sites More sharing options...
Eagle Posted June 27, 2019 Share Posted June 27, 2019 52 minutes ago, Pete M said: I see your caster is off. does the camber change a bit as the axle rotates? Yes, it does. It has to. Link to comment Share on other sites More sharing options...
Smokeyyank Posted June 27, 2019 Author Share Posted June 27, 2019 39 minutes ago, Eagle said: Yes, it does. It has to. Can you elaborate? Not challenging just wondering. Link to comment Share on other sites More sharing options...
Pete M Posted June 27, 2019 Share Posted June 27, 2019 think of it this way, if you rotated the axle 180* til it was entirely upside down, the camber would be the opposite (positive 1.6*) that it is now (-1.6*). so any rotation (i.e. the change in caster angle) short of that will change it slightly. did they adjust anything or just check the alignment? Link to comment Share on other sites More sharing options...
Eagle Posted June 27, 2019 Share Posted June 27, 2019 1 hour ago, Pete M said: think of it this way, if you rotated the axle 180* til it was entirely upside down, the camber would be the opposite (positive 1.6*) that it is now (-1.6*). so any rotation (i.e. the change in caster angle) short of that will change it slightly. The difficulty is quantifying the change ... but maybe it's not that difficult. Assume you start with the axle perfectly upright -- defined as zero caster measured through the ball joints -- and +1.5 degrees of camber. As Pete noted, flip the axle 180 degrees and the camber shifts to -1.5. As the axle rotates through 90 degrees, the camber would be zero (it would actually then be creating toe-in or toe-out). So let's assume that the change is linear. Rotating the axle 180 degrees causes a change in camber of 3 degrees. So a shift of 60 degrees will change the camber 1 degree, 30 degrees will change the camber 0.5 degrees, and 15 degrees on the axle will change the camber 0.25 degrees. 5 degrees on the axle will be 0.0833 degrees of camber. Your caster angles are roughly 2.35 degrees off from the mid-spec of 6.75. If the mid-spec for camber of -0.1 coincides with the mid-spec for caster, then the 2.35 degree shift in your caster would change the camber by about 0.04 degrees. If you started at mid-spec, that would still be within the allowable range. However, if you started at or near one of the extremes, it would push you out of the allowable range. Link to comment Share on other sites More sharing options...
Smokeyyank Posted June 27, 2019 Author Share Posted June 27, 2019 Ok kind of makes sense. I'm tracking roughly but still trying to wrap my head around it. 2 hours ago, Pete M said: think of it this way, if you rotated the axle 180* til it was entirely upside down, the camber would be the opposite (positive 1.6*) that it is now (-1.6*). so any rotation (i.e. the change in caster angle) short of that will change it slightly. did they adjust anything or just check the alignment? All they can adjust is toe. WJs do not have anything they can adjust. It's not causing any crazy issue and I haven't noticed any abnormal tire wear. Thanks for the info! Link to comment Share on other sites More sharing options...
Pete M Posted June 27, 2019 Share Posted June 27, 2019 yeah, I thought that about MJs too... until Don should me that there are caster adjusting shims in the body side lower control arm mounts. Link to comment Share on other sites More sharing options...
Eagle Posted June 28, 2019 Share Posted June 28, 2019 1 hour ago, Smokeyyank said: All they can adjust is toe. WJs do not have anything they can adjust. It's not causing any crazy issue and I haven't noticed any abnormal tire wear. I thought caster was adjustable on the WJ. Unfortunately, I gave away my WJ factory service manual. You can always go to adjustable control arms. And camber can be addressed with offset ball joints. Link to comment Share on other sites More sharing options...
Smokeyyank Posted June 28, 2019 Author Share Posted June 28, 2019 1 hour ago, Eagle said: I thought caster was adjustable on the WJ. Unfortunately, I gave away my WJ factory service manual. You can always go to adjustable control arms. And camber can be addressed with offset ball joints. No I was looking into it and toe is all that can be adjusted I don't have the cam bolts like the xj/mjs. If I didnt just replace all of the CA with new stock ones I would go adjustable. Eventually I may throw the hp44 and 9" I have in it and go longarms. But thats going to be after the MJ is done......so like never. Link to comment Share on other sites More sharing options...
Pete M Posted June 28, 2019 Share Posted June 28, 2019 you speak the truth. I looked up a video and sure enough, the holes have no adjustability whatsoever. that sucks, but good to know. Link to comment Share on other sites More sharing options...
Smokeyyank Posted June 28, 2019 Author Share Posted June 28, 2019 13 hours ago, Pete M said: you speak the truth. I looked up a video and sure enough, the holes have no adjustability whatsoever. that sucks, but good to know. Yeah it kind of does. I know I could have just done the alignment myself as toe doesn't require a lot but I just didn't have the want to. Way to many side projects and the wife is about to beat me with a stick if I work on the jeeps this weekend. It's been driving a lot better since the alignment. So I'll take that as a win, wife happy + jeep happy= me not fearing for my life Link to comment Share on other sites More sharing options...
.thumb.jpg.1c80a5acd72f01d3b9ded3bfb499d0c9.jpg)
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now