egzlilgituarboy9 Posted April 1, 2014 Share Posted April 1, 2014 So recently got my car back on the road. After 70 miles of driving rear driver side wheel bearing gave out on the highway at about 70mph. I have modern motorsports stub axles and companion flanges all rear wheel bearings were replaced before car was back on the road, so they also only have 70 miles on them. This has got scratching my head the passenger side is fine torqued them to about 150 ft/lbs did notice when I put them together they did have some resistance but when the wheel was on it felt OK. Anyways here is a picture of the damage please let me know what you think caused it. I'm leaning towards the axle is squeezing it too tight and causing a lot of heat. Quote Link to comment Share on other sites More sharing options...
egzlilgituarboy9 Posted April 1, 2014 Author Share Posted April 1, 2014 Here is the picture. Quote Link to comment Share on other sites More sharing options...
Miles Posted April 2, 2014 Share Posted April 2, 2014 Was the bearing pressed on or hammered onto the axle? What type of wheel bearing grease was used? Quote Link to comment Share on other sites More sharing options...
egzlilgituarboy9 Posted April 2, 2014 Author Share Posted April 2, 2014 I'm pretty sure I hammered it on not pressed. I used penzoil wheel bearing grease. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted April 2, 2014 Share Posted April 2, 2014 I dunno man, thats ugly. What kind of drift did you use? I use a press and a piece of galvanized pipe from Lowes that presses on at the inner race. All I can figure is that the ball retainer was defective. Get another bearing and get back on the road! Quote Link to comment Share on other sites More sharing options...
egzlilgituarboy9 Posted April 2, 2014 Author Share Posted April 2, 2014 I dunno man, thats ugly. What kind of drift did you use? I use a press and a piece of galvanized pipe from Lowes that presses on at the inner race. All I can figure is that the ball retainer was defective. Get another bearing and get back on the road! Got on on order, gonna have it pressed in. Kind of weird that the passenger side one is fine. Quote Link to comment Share on other sites More sharing options...
Miles Posted April 2, 2014 Share Posted April 2, 2014 You may have damaged the bearing hammering it onto the axle. For grease, try Red Line Oil CV-2 Synthetic Grease. Quote Link to comment Share on other sites More sharing options...
beermanpete Posted April 2, 2014 Share Posted April 2, 2014 Perhaps the distance collar is too short? Check the code on the housing and look up the dimensions listed in the service manual for the collar. Check the collar to see if it is correct. Quote Link to comment Share on other sites More sharing options...
johnc Posted April 2, 2014 Share Posted April 2, 2014 My guess is lack of lube. Failure in 70 miles is usually a lube issue. There doesn't appear to be any residual grease in the bearing and the retainer looks blued from heat. Did you pack grease into this bearing before installing it? Its takes me about 5 minutes to properly get the grease into this bearing. Quote Link to comment Share on other sites More sharing options...
egzlilgituarboy9 Posted April 3, 2014 Author Share Posted April 3, 2014 My guess is lack of lube. Failure in 70 miles is usually a lube issue. There doesn't appear to be any residual grease in the bearing and the retainer looks blued from heat. Did you pack grease into this bearing before installing it? Its takes me about 5 minutes to properly get the grease into this bearing. Yea definatly spent time packing them pretty well use the little container you push on to pack it and finished it off packing it in with my hand. Quote Link to comment Share on other sites More sharing options...
mcx Posted April 4, 2014 Share Posted April 4, 2014 what is the correct procedure to install bearings?? are they[in and out bearing] pressed into hub first and then the axle stub gets pressed through?? or is theouter bearing pressed on the stub and then that assembly pressed into hub?? Quote Link to comment Share on other sites More sharing options...
Miles Posted April 4, 2014 Share Posted April 4, 2014 what is the correct procedure to install bearings?? are they[in and out bearing] pressed into hub first and then the axle stub gets pressed through?? or is theouter bearing pressed on the stub and then that assembly pressed into hub?? http://www.atlanticz.ca/zclub/techtips/rearwheelbearings/index.html Search the driveline forum as your question will be answered there. Many posts! Quote Link to comment Share on other sites More sharing options...
mcx Posted April 4, 2014 Share Posted April 4, 2014 Thanks for that link....excellent write up/pixs!! Quote Link to comment Share on other sites More sharing options...
egzlilgituarboy9 Posted April 5, 2014 Author Share Posted April 5, 2014 So I just re installed them they are still very tight when torqued to specs. Almost does not even turn. Starting to wonder if the axles or companion flanges were machined wrong. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted April 5, 2014 Share Posted April 5, 2014 Something's not right-mine spun easily when torqued to 200#. Quote Link to comment Share on other sites More sharing options...
Miles Posted April 5, 2014 Share Posted April 5, 2014 (edited) Do you have the correct spacers that go between the bearings? The spacers are different lengths and are marked A, B or C. The letter has to match the letter stamped on the hub assembly. Post some pictures of the stub axles with the bearings. Bearing Preload: You are aware that the specs inlude a torque limit based on using a spring scale to indicate effort required to turn the axle. When that limit is reached you stop tightening the retainer nut. It could be that you are over tightening the retainer nut. Edited April 5, 2014 by Miles Quote Link to comment Share on other sites More sharing options...
egzlilgituarboy9 Posted April 5, 2014 Author Share Posted April 5, 2014 Any idea where i could get new spacers? think those are whats causing the problem. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted April 5, 2014 Share Posted April 5, 2014 Somebody on this forum will have an assortment of spacers in their parts pile. Put in a want add in the classifieds. Which spacer do you have now? I think the B spacer is most common. Can you measure the length with a caliper so we know what you have? I might have one set of spacers, but my memory may be playing tricks on me. Lets all look under our work benches and see what we have. You get the measurement on what you have so we don't just send you the same thing. If I have what you need, it won't cost you anything. Quote Link to comment Share on other sites More sharing options...
egzlilgituarboy9 Posted April 5, 2014 Author Share Posted April 5, 2014 I'll take a look once I get home from work and measure them out. Quote Link to comment Share on other sites More sharing options...
heavy85 Posted April 5, 2014 Share Posted April 5, 2014 (edited) Definitely think your spacers are the issue. Need to do the fish scale pull test to make sure you are not excessively preloading the bearings. When the nut is tight there should be just a touch of resistance when set right. The only way to adjust this is with different length spacers. You need a longer spacer and just a couple thousandths in length makes a big difference. Edited April 5, 2014 by heavy85 Quote Link to comment Share on other sites More sharing options...
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