Yes. it looks like you were at .010 before so I would try .012 and lets see what it looks like.
Gear pattern assessment
- Thread starter Irun
- Start date
Yes. it looks like you were at .010 before so I would try .012 and lets see what it looks like.
OP
Now we are getting somewhere. Now work on opening up that backlash.
Best pattern yet! Try shifting that carrier to get a couple tho more backlash and I bet you’re golden
OP
I pulled apart the carrier to install shims inside the bearings. Suffice it to say, I discovered the shim delta problem. While I thought the bearings were seated, they were not. Without all the details of why, I'm back to starting over. This is a setback, but one that taught me enough to make it worth the lesson learned, which just happens to match my build thread title.
There is nothing bad about admitting your wrong, as my Mother always said, and this won't deter me from succeeding. At least the mystery is solved and I can now move forward with much more confidence. Stay tuned for more and keep the help coming!
On the plus side, my hands are now calibrated to detect less than. 005 backlash!
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OP
Before stopping, I wanted to get a new baseline, and the numbers are creeping to where they should be.
Pinion shims are at .007
Ring gear carrier side is .047
Non ring gear carrier side is also .047
Backlash is .0075
The original total carrier shim total was 100 and I'm now at 94, so that's good news.
Latest pattern doesn't look as defined as I think it should, but I'm tired and calling it quits for now. I'll work on it fresh later this week. There is still a lot for me to learn, but the support is amazing here, even when the OP is an idiot!
Pinion shims are at .007
Ring gear carrier side is .047
Non ring gear carrier side is also .047
Backlash is .0075
The original total carrier shim total was 100 and I'm now at 94, so that's good news.
Latest pattern doesn't look as defined as I think it should, but I'm tired and calling it quits for now. I'll work on it fresh later this week. There is still a lot for me to learn, but the support is amazing here, even when the OP is an idiot!
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Education is expensive. I ran way too much preload on a pinion bearing once. Smoked it within 3 miles and cost me a new ring and pinion set, bearing, and most significantly, time. That lesson was expensive, but it’s that experience that is the best teacher.
OP
Indeed. The best lessons learned are from mistakes. I've certainly made my share, and am not ashamed to admit it!
Glad you figured that out. Start your pinion depth around 57 thou (includes slinger and baffle if they're thin enough...baffles are usually 10 thou).
Take some brakleen and clean your R&P up so you won't be confused by any old pattern marks.
Take some brakleen and clean your R&P up so you won't be confused by any old pattern marks.
I have done that before too. Couldn't get the pinion bearing out after. I was lucky that it was a toyota axle so I didn't loose the entire axle, just a drop out third member.
Yep better to catch it now while the only thing harmed is some shims and pride.
Now we can get to bracketing it out.
Thankfully, I was able to get everything back apart and not ruin my Dana 44 front axle. Took me a couple hours of grinding on the bearing to do so, but the race came out pretty well after I got the pinion shaft and bearing "guts" out.
OP
You are just a tad bit deep. I think you are within 2-3 thou.
OP
I went with koyo because of my Toyota background! I emailed revolution about this Korean bearing so we will see what they say.
I'll order one if they don't do anything but it is annoying to advertise koyo and put something else in the box.
Yep I would pull .002 but this is looking so much better.
When you install the carrier, leave the caps finger tight. Wack the ring gear both sides with a 5 lb. rubber mallet. You'll know if she's fully seated. Also, set your dial indicator on the back side of the ring gear at the lip to measure run-out. A couple thou can change pattern read. If no one has mentioned, pattern check (with some resistance) and check backlash at more than one are on the ring gear.
OP
I've been using a 4 lb dead blow hammer to get it in. Then I take wood block and hit each race until I hear a solid whack. Thanks on all the other tips. This has been a learning experience for sure!