Whining rear end
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Whining rear end
Changed the oil in my rear dif a couple weeks ago. Used a red synthetic we put in the big trucks at work. Just got back from a 500 mile trip and it's talking.
I just went to town (about 20 miles) and the chunk is hot to the touch, not smoking but to hot to hold your hand against.
Thoughts?
I just went to town (about 20 miles) and the chunk is hot to the touch, not smoking but to hot to hold your hand against.
Thoughts?
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Joined: Sep 2007
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From: Western Mass
Did you change the pinion seal the same time as the oil? Thats what it sounds like at least.
When you changed the seal, what did you do when tightening the nut back up? I'm thinking the pinion preload might be screwed up?
Also what are the specs on the "red synthetic"? Its possible it didn't need the ford additive for limited slip, but that by itself would only cause noise when turning and wear the clutches out faster. However, if its not the right thickness, maybe that can cause the heat.
When you changed the seal, what did you do when tightening the nut back up? I'm thinking the pinion preload might be screwed up?
Also what are the specs on the "red synthetic"? Its possible it didn't need the ford additive for limited slip, but that by itself would only cause noise when turning and wear the clutches out faster. However, if its not the right thickness, maybe that can cause the heat.
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Well I actually don't know the specs (fool) but we use it in the diffs in the Peterbuilts at work. So I figured it would be fine and the mechanic did also.
The preload is a descent suggestion... Bc I don't know what that is. And yes I did do all that at once. I didn't add the additive as a "test" to see what it would do. It sill slips like it is suppose to and when I turn the tires with it off the ground both turn together.
So what do I need to do with the preload?
The preload is a descent suggestion... Bc I don't know what that is. And yes I did do all that at once. I didn't add the additive as a "test" to see what it would do. It sill slips like it is suppose to and when I turn the tires with it off the ground both turn together.
So what do I need to do with the preload?
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From: Western Mass
The bit of grease shouldn't be an issue. And honestly, I'm not sure the oil would either. Look on the container it came out of, it HAS to be on there, or at least the manufacturer's name and some kind of info you can look up.
I appears you didn't tighten it properly. Off the top of my head, I don't know the proper procedure. I know that other people have successfully swapped seals by marking the nut and pinion shaft, then counting turns while unscrewing the nut. Then putting it back on the same number of turns. I think thats what I did when I replaced mine. I hope you didn't wreck the pinion bearings, and/or the ring and pinion.
I appears you didn't tighten it properly. Off the top of my head, I don't know the proper procedure. I know that other people have successfully swapped seals by marking the nut and pinion shaft, then counting turns while unscrewing the nut. Then putting it back on the same number of turns. I think thats what I did when I replaced mine. I hope you didn't wreck the pinion bearings, and/or the ring and pinion.
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I think I may have put too torque into it also. I will get specs on oil to make sure and I did find the torque specs but I'm getting a new nut tomorrow bc this one is damaged a little. I also hope the pinion/ring are ok.
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Update;
Too much preload was the issue. Torqued the pinion nut and checked resistance. So far it seems I didn't do any permant damage, fingers still crossed. Either way I suppose I learned a few things.
Thanks for the help and education.
Too much preload was the issue. Torqued the pinion nut and checked resistance. So far it seems I didn't do any permant damage, fingers still crossed. Either way I suppose I learned a few things.
Thanks for the help and education.
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