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  #121 (permalink)  
Old 04-16-2014, 02:04 PM
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Can't really tell much about that, but it doesn't look bad.

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  #122 (permalink)  
Old 04-16-2014, 02:12 PM
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Itīs certainly contacting the "meat" of the teeth.

So Iīm pretty much at a loss as what to do next.
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  #123 (permalink)  
Old 04-16-2014, 02:41 PM
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What does it look like on the drive side of the teeth, rather than the coast side you're showing??
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  #124 (permalink)  
Old 04-16-2014, 05:05 PM
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Quote:
Originally Posted by ericnova72 View Post
What does it look like on the drive side of the teeth, rather than the coast side you're showing??
Dumb guy me took four photos...ALL the same side, when I realised, it was too dark to go out and do more.

The drive side looks good.
Iīll get a pic in the morning.
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  #125 (permalink)  
Old 04-17-2014, 01:55 PM
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Herīs how it looks on the drive side.


Itīs all back together now, 15inlbs on the pinion....smooth as silk it is.

Tomorrow it goes back under the car.
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  #126 (permalink)  
Old 04-23-2014, 02:40 AM
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The axle has been back in the car.....now itīs out again.
Still whining.
So, taking a look at the pinion bearings because I think in my first attempt
I overdid the pre load.
Any comments ?

Large bearing.


Large Bearing race inside.


Large Bearing race outside.


Small Bearing.


Small Bearing race.


This should all go back together with zippers or velcro...
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  #127 (permalink)  
Old 04-23-2014, 05:51 AM
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Were those new bearings when you built this? If they were then that looks like a lot of wear for such a short amount of time. If they were used then they should have been replaced.
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  #128 (permalink)  
Old 04-23-2014, 07:25 AM
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We use smaller tapered roller bearings in gearboxes and I'm inclined to agree with Professor BGH. If those are used, they should have been scrapped; if they are new, well at least youre getting good at this. Chin up Malc! You're doing great and we'll beat this!
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  #129 (permalink)  
Old 04-23-2014, 08:28 AM
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They were brand spanking new Timken bearings.
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  #130 (permalink)  
Old 04-23-2014, 05:11 PM
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What was the foamy green stuff that you put in there originally? Might have something to do with the bearing appearance.
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  #131 (permalink)  
Old 04-23-2014, 09:50 PM
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I may have missed it. Does the rear whine all the time, on deceleration or acceleration? Did you apply a little drag on the carrier when you were marking the contact pattern? I have had richmond gears that made noise. Did you make the crush sleeve eliminator?
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  #132 (permalink)  
Old 04-24-2014, 02:15 AM
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The foaming was caused by the gear marking compound,
next time Iīl get it all off the gears.

I used a crush sleeve eliminator the first time....wonīt use one again, itīs iffy if you areīnt experienced.
Iīm using this Ratech crush sleeve.



I applied drag to the crown wheel when doing the contact pattern.

Iīm pretty sure now I caused this by using too much preload on my first try.
New bearings should be here Monday.
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  #133 (permalink)  
Old 04-24-2014, 06:37 AM
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As an aside; I showed the pics to my boss and didn't tell him they were from a rear axle. His response was "improper lubricant or preload was too aggressive or not applied properly."

Just some thoughts.

Thank you for sharing your experiences with us Malc
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  #134 (permalink)  
Old 04-24-2014, 06:54 AM
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Since all of us cannot watch what you are doing. Can you elaborate on how you come up with your bearing preload measurment? The process which you use. With standard crush sleeves I start the crush process ever so slightly in a press before putting it in the axle. Bigger sleeves require more crushing force. This is easier on my hands. I have never used a crush sleeve like the one you pictured.
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  #135 (permalink)  
Old 04-24-2014, 11:06 AM
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I used the pinion pre load as written in my Chiltern manual and the book I bought
Differentials: Identification, Restoration & Repair - 2nd Edition Differentials: Identification, Restoration & Repair - 2nd Edition
by Randy Lyman of Randyīs Ring & Pinion.

New bearings should be set between 15 - 30 inlbs, and the first time I was on top of 30inlbs.
That must have caused the damage and when I reset the preload to 20inlbs
it wasīnt going to work with the ruined bearings and they continued to whine.

Now with the experience I have doing the crush sleeve boogy I can do it properly.
First off I tighten the pinion nut and remove all the slack, then I tighten it tiny increments at a time taking readings with the inlbs torque wrench.

I am going to shoot for 15inlbs on the new bearings.

There was plenty of oil in the diff. at all times.

This is how I tighten the pinion, this was on the floor I can also do it on the workbench.

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