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Old 05-21-2017, 09:01 PM   #31
jrfeatherman
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Default Re: 1979 International Scout II

I then measured the oil slinger thickness because I knew it would add to the height of the pinion but youll later see I forgot add to my shim calculations.
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Old 05-21-2017, 09:03 PM   #32
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Default Re: 1979 International Scout II

I also measured for the baffle for the same reason that I knew it would add to the total pinion height.
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Old 05-21-2017, 09:08 PM   #33
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Default Re: 1979 International Scout II

I then took my numbers (except for oil slinger), added them up and subtracted my added measurement of the baffle. This number gave me a starting point for my shim count under the inner pinion race.
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Old 05-21-2017, 09:10 PM   #34
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Default Re: 1979 International Scout II

These are the shims I measured and used for my set up.
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Old 05-21-2017, 09:12 PM   #35
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Default Re: 1979 International Scout II

I put in my new baffle, shims, and dummy inner pinion race.
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Old 05-21-2017, 09:20 PM   #36
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Default Re: 1979 International Scout II

Inserted pinion setup so I can measure for distance of side to side movement from pinion and ring contact point, and bearing seat position in housing. I must have deleted the picture, but I ended up with a 0.0170" movement.
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Old 05-21-2017, 09:24 PM   #37
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Default Re: 1979 International Scout II

I took the number I got and subtracted from the total shim count I got when I measured for total movement without pinion in place. The 0.0170 went on the ring side bearing and the 0.0380 went onto the opposite bearing.
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Old 05-21-2017, 09:28 PM   #38
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Default Re: 1979 International Scout II

I used the supplied marking grease and brush that came with my rebuild kit. I applied it to a few of the teeth on the drive and coast sides.
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Old 05-21-2017, 09:40 PM   #39
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Default Re: 1979 International Scout II

Before I started to rotating the ring, I made sure to tighten down bearing caps and pinon. I learned that not tightening the pinon, the pinion would shift/catch and move a little. I wanted to get the best markings I could, especially since this is my first attempt at rebuilding an axle. I made sure that I put the correct bearing caps back to their original locations and marked with paint to high light stamps as they were hard to see.
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Old 05-21-2017, 09:50 PM   #40
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Default Re: 1979 International Scout II

I added pressure to the top of the ring and rotated front to back, while maintaining pressure. I also kept my hand on the yoke neck to keep some resistance in the pinion as I rotated. As you can see I got a high marking on the coast side and a low marking on the drive side. So with a little searching I seen that I needed to adjust my pinion height. I needed to lower my shim count, which would have been a bigger adjustment if I added my measurement of the oil slinger.
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Old 05-21-2017, 09:57 PM   #41
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Default Re: 1979 International Scout II

After a few adjustments and testing I got these next markings. I could not get clear markings like some of the pictures I found online but this looked to be right where I needed it. I May be wrong and would like some feed back if you have made it this far in my posts. It would be easier now to make necessary adjustments if needed. Plus I am not done with my axle build. I ran into a little hick up with bearing seals and back lash.
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Last edited by jrfeatherman; 05-21-2017 at 10:35 PM..
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Old 05-21-2017, 10:10 PM   #42
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Default Re: 1979 International Scout II

After accepting my markings, I did my pinion preload. (I did not take any picture of this as it was hard trying to set up pinion and take pics as I was alone doing this.) This step was the unknowing factor of this rebuild as my torque wrench only goes up to 150 ft lbs. From some searching I found that the proper torque for the pinion nut is 200-255 from two different sources. So without knowing if I got proper torque this May affect my results. With that being said I torqued down to 150 ft lbs and then did an additional 1/4 turn. I believe this should put me in the ball park. I checked my preload and got a 15.8 ft lb rotational reading. So I figured I was fine since the preload needed to be between 14 and 19 ft lbs. I then put back in the carrier and did my back lash measurements. I set up dial indicator and got a reading of 0.009" reading. This was on the high end but within tolerances (0.004-0.009 one source and 0.006-0.010 another). I figured all was good and put all new bearings on the carrier and reinserted back into housing. After checking back lash again I measure 0.0011 which put me out of specs. I am not sure how much of a difference this would make but any input would be great. I did all the same steps on the front axle but got a little better results as I got 0.006 back lash and 17.9 ft lbs pinion rotational torgue. Like I said any help is great if your keeping up with this build. One of my other hick ups is the rear inner seal is larger then the inner tube diameter. I took some measurements and the seal is roughly 2.5" and the inner tube is roughly 2.25". I am going to call and check if I got proper seals, issue is I have two sets from two kits, and both sets are too big.
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Last edited by jrfeatherman; 05-21-2017 at 10:23 PM..
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Old 05-22-2017, 05:42 AM   #43
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Default Re: 1979 International Scout II

A few pointers that I observed reading your posts. When you went from your test bearings to your final bearings, and the back lash changed, that happens all the time. I would open it up again and adjust that as .011 is too much and will grow bigger as the ring/pinion set breaks in. But before you do, I would suggest getting a better pattern check as I don't like the pattern you have right now. It could be because of the way you achieved getting that pattern though. This is how I check my pattern - yellow marking paint on three teeth, wrap a rag around the pinion yoke in a way that it won't snag went rotating back and forth, box end wrench on the ring gear bolt. Line up the marked teeth near the pinion, then with fast/swift actions, rotate the ring gear back and forth while pulling tight on the rag around the yoke. That will give you a solid pattern check every time.

As for the incorrect seals post up pictures of what you received so we can verify what parts you actually received.
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Old 05-22-2017, 02:52 PM   #44
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Default Re: 1979 International Scout II

Quote:
Originally Posted by ihpartsjeff View Post
A few pointers that I observed reading your posts. When you went from your test bearings to your final bearings, and the back lash changed, that happens all the time. I would open it up again and adjust that as .011 is too much and will grow bigger as the ring/pinion set breaks in. But before you do, I would suggest getting a better pattern check as I don't like the pattern you have right now. It could be because of the way you achieved getting that pattern though. This is how I check my pattern - yellow marking paint on three teeth, wrap a rag around the pinion yoke in a way that it won't snag went rotating back and forth, box end wrench on the ring gear bolt. Line up the marked teeth near the pinion, then with fast/swift actions, rotate the ring gear back and forth while pulling tight on the rag around the yoke. That will give you a solid pattern check every time.

As for the incorrect seals post up pictures of what you received so we can verify what parts you actually received.
Here are the seals
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Old 05-22-2017, 02:53 PM   #45
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Default Re: 1979 International Scout II

One set is made in the US and one from Mexico, but both have the same part number
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