AnotherOldJeepGuy Posted March 23 Share Posted March 23 So I am used to noise in my 35 year old Jeep , but I am noticing one that maybe I can get rid of. I am noticing a roar, well a minor roar but I don't know a better word, as I am cruising along once I get up to 35-45 MPH. It is in the ballpark of an open A on my guitar, so around 440 Hertz. I don't notice the frequency being much different as I go faster, possible a little, but not much if any. As soon as I veer to the left just slightly it disappears, an comes back just as quickly when I return to straight down the road. It doesn't do the same if I veer right, that is veer right the noise is still there and it goes away if I slow down below 35-ish. I don't know how long this particular noise has been there cause, as noted, there all always noises of some kind. I may try swapping the two front tires just to see if anything changes, but though I'd go ahead a post this and see what the experts say. Link to comment Share on other sites More sharing options...
A-man930 Posted March 23 Share Posted March 23 Swap the tires around. Sounds like a tire issue. Link to comment Share on other sites More sharing options...
Pete M Posted March 23 Share Posted March 23 while you've got the front end jacked up, rotate the tires around and around and listen for wheel bearings. also shake the tire with your hands at the top and bottom, then the sides to check for any play. Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted March 23 Share Posted March 23 It probably has something to do with your right front wheel/tire/bearings. When turning left it loads that one harder. and because the noise goes away only when a higher load is applied there is probably an issue on that corner. I would guess a wheel bearing is starting to go out. Or the opposite is true and is unloading the left tire causing the bad bearing to be quiet. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 25 Author Share Posted March 25 The front right wheel can be wiggled a bit, so will be working on those bearings soon. May still be some tire noise also, but resolving the bearing issue is on the top of the list either way. Will probably just repack both sides but I'll work in a test drive after doing the right just to see what changes.... Link to comment Share on other sites More sharing options...
rokinn Posted March 25 Share Posted March 25 5 hours ago, AnotherOldJeepGuy said: The front right wheel can be wiggled a bit, so will be working on those bearings soon. May still be some tire noise also, but resolving the bearing issue is on the top of the list either way. Will probably just repack both sides but I'll work in a test drive after doing the right just to see what changes.... Bad wheel bearings are considered a critical safety issue. If it's loose and making noise it's highly likely it is gone. Repacking may buy you a little time for a diagnostic but examine it carefully. Seizing on the spindle will do considerably more damage and add unnecessary expense. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 25 Author Share Posted March 25 Understood! At this point I don't know if the noise is the bearing, or the tire, or both. Will see what I see once I get it apart, probably tomorrow. I won't be going very far in the Jeep until at least the wiggle is gone! For what it's worth, I didn't notice any noise or roughness when I spun the wheel. Link to comment Share on other sites More sharing options...
llhat Posted March 25 Share Posted March 25 noted the comment on bearings seizing on the spindle.... seeing in your sig yours is 2wd, so there is a conventional spindle (IIRC) and not a bearing pack. so you could pull the hub and check the bearings by removal of caliper and the castle nut under the spindle cap. the 4wd are a press fit bearing pack and most do not have the press or adapters for the press to remove the bearings without damage to them. 'simpler' to replace the bearing pack in most cases. these are usually sealed bearings. on 2wd should be 'regular' tapered roller bearings and their matching cup, look for 'fretting' of the rollers and in the surface of the cup. bearings probably not too expensive but try to look for top shelf quality bearings and get the seals while at FLAPs, as well as good bearing grease. good luck. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 25 Author Share Posted March 25 While I in there, I will probably go ahead and replace the pads. They are 4 years old and look to be about 3/16 pad left. Rotors are the same age so if they are anything like rotors from my high school days, they should be good for 2 sets of pads. I tried to measure, but I don't have the right caliper to get it just right. With the version I have, it measures 7/8 thick, but there is a tiny ridge on the outer edge that is included in that measurement., probably adds a a total of around 1/16 to the actual measurement from my guestimate. Link to comment Share on other sites More sharing options...
llhat Posted March 26 Share Posted March 26 guess talking about an outer 'lip' on the edge of the pad.... in a small section take a file and knock the lip off then your measuring caliper's flat surface can access the flat part of the pad. Link to comment Share on other sites More sharing options...
Pete M Posted March 26 Share Posted March 26 these days aftermarket rotors tend to come brand new already at their minimum thickness. don't be surprised if it measures as a bit "less than ideal". rule of thumb, if it looks to your eye like a normal rotor's thickness and the surface is smooth, it's good to go. Link to comment Share on other sites More sharing options...
llhat Posted March 26 Share Posted March 26 oops, thought he was measuring pads... rotor lip bit more difficult... but a regular anvil micrometer will bridge the lip... but if no divider style measuring caliper, then probably no micrometer either. the jaws on the vernier may be relieved near the beam.. that may bridge the ridge Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 26 Author Share Posted March 26 No got that kind of micrometer either, but I am going with @Pete M's version and say it's OK. But what I do got is more trouble courtesy (I assume but can't prove) of the shop that worked on it for me last time in 2021. I should have started working on this myself a lot sooner, even with my shade tree degree I know better than to force a connect to this degree. But that's under the bridge at this point. It was very difficult to remove the "hand tight" nut, and you can see why. I have a fairly large die "wrench" but I don't know if I have a bit big enough (pardon my terminology which is most likely wrong, but I think you can tell what I am attempting to say). I am guessing that reviving these threads is questionable, but at this point I don't have much to loose trying. Also while I am at it, I can't really see where to try removing the rear seal. I have identified 2 guesses for comment before I dig into this and cause damage I can't fix. A? B? Other? It doesn't look anything like the one in the good video I watched (https://youtu.be/Yj6f8crrwZ4), or what I think I remember from the 80s, so I am wondering if the shop that "customized" my threads also installed some kind of rotor that is pre-loaded with a bearing that is not intended to be accessible?. Link to comment Share on other sites More sharing options...
watchamakalit Posted March 26 Share Posted March 26 Slide the rotor assembly back on the spindle. Install the nut with your fingers far enough it will hold threads. Pull out and down (kinda hard to describe the motion) as you do this you will feel the inner bearing bump against the nut. Now use the rotor as a "reverse slide hammer" by giving it a good yank. This will remove the inner seal and bearing. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 26 Author Share Posted March 26 Thanks, once I get my threads restored, haven't given up on that quite yet, I can give that a try. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 26 Author Share Posted March 26 Can anyone tell me the correct thread on the spindle? I need to make sure I get it right since I probably only have one shot at fixing the threads at best. Link to comment Share on other sites More sharing options...
Pete M Posted March 27 Share Posted March 27 if there's a hardware store near you, you miiiight be able to compare the nut to what they have on hand. Link to comment Share on other sites More sharing options...
llhat Posted March 27 Share Posted March 27 on most of the stuff i worked on in the past, took a drift and from the outside of the hub, put the drift on the inner bearing and gave it a whack or two the seal and bearing should drop out... If you want to pry, do it at "A" , B is the seal lip, it's gonna be trash anyway and if I 'know' i have the replacement I'll go in the opening with a seal removal tool and pry er out, even a big screwdriver will work as a lever the threads... hmm, yea a die may work, but you could also take a triangular 'swiss' file and restore the 'vee'... but the outer diameter of the thread has already suffered. this bearing nut is not torqued to an extreme amount, and the cotter pin will keep if from loosening from rotation, but there is the risk of the nut letting go linearly and no longer retain the hub... sort of depends on how the nut interacts with the root of the thread on the spindle. how much risk... I won't say.... but them are some boogered threads. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 27 Author Share Posted March 27 I hear ya and appreciate the warning. I guess that judgement call is forthcoming once I see the results of trying to refresh the threads.... Link to comment Share on other sites More sharing options...
Pete M Posted March 27 Share Posted March 27 where are you located? Link to comment Share on other sites More sharing options...
rokinn Posted March 27 Share Posted March 27 19 hours ago, AnotherOldJeepGuy said: Can anyone tell me the correct thread on the spindle? I need to make sure I get it right since I probably only have one shot at fixing the threads at best. Link on Rockauto for spindle nut. Has the size for the die you want. https://www.rockauto.com/en/moreinfo.php?pk=15655&cc=1181720&pt=1616&jsn=506&optionchoice=0-0-0-1 Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 27 Author Share Posted March 27 6 hours ago, Pete M said: where are you located? Plano TX Link to comment Share on other sites More sharing options...
Pete M Posted March 27 Share Posted March 27 oooo, that's a bit far for me to offer up my spare whole 2wd axle. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 27 Author Share Posted March 27 8 minutes ago, rokinn said: Link on Rockauto for spindle nut. Has the size for the die you want. https://www.rockauto.com/en/moreinfo.php?pk=15655&cc=1181720&pt=1616&jsn=506&optionchoice=0-0-0-1 Thanks, figures, I just got new pads in the mail from rock auto today, ordered before I knew the surprise that awaited me. Link to comment Share on other sites More sharing options...
AnotherOldJeepGuy Posted March 27 Author Share Posted March 27 2 minutes ago, Pete M said: oooo, that's a bit far for me to offer up my spare whole 2wd axle. Yeah, well probably good for you cause I would have probably asked you to help install it too Link to comment Share on other sites More sharing options...
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