Got all parts out of the axle without damaging anything. The oil sling is also undamaged. Wasn't particulary hard when I knew the process :TU: The oil sling was actually not between the housing and the race, so no shims would have been necessary it seems. It was just pressed in the housing, resting on the race inner rim. Oil sling: I will now clean the housing and start fitting the new parts! Thanks!
That is right on that oil sling the tabs hit the back of the race drive out notches etc and not under the race seat area. Jim
Hey guys, I've fitted all the new bearings and races now, and started assembling the axle. Shimmed the carrier to a 0.22mm (0.0087") backlash and checked the contact pattern. To me I think this looks pretty good, according to the fabcraft instructions, but what do you guys think? Hoping not to have to remove the pinion bearing and start over. Thanks! Sent from my Galaxy S7 edge using Tapatalk
Did you run that pattern with the carrier caps torqued down? Was there some resistance putting the carrier in the saddles,to give the carrier bearings some preload,or did it just fall in?
Ah no, I did not torque down the carrier caps... I know the bearings were properly seated, but I will run it over again. Do you think it will make a big difference? Is the pattern shown above a decent one independent of the carrier caps? Yes, slight resistance putting the carrier in, but I could remove the carrier by hand without big difficulty (probably because I'm super strong ha). Maybe I should add some more shims for an even tighter fit when measuring backlash. Will add another 0.004" on each side on final assembly for a good snug fit. Finally I will try to mark all the teeth to see if they all look good. Thanks
Yes,tighten the carrier caps to get the correct mock fit,as if it was the final assembly. A hair more preload. The .004 might be too much,depending on where it is at now,but if you can play with the shin assortment to give you a hair more on each side,great. That should keep your backlash at the .0087 that you have it at now.
Redid the shimming of the carrier and made it tighter while keeping the backlash. Now I can't get it in or out by hand. Light tapping with a rubber hammer on the way inn and a little prying on the way out. Backlash @ 0.00867". Redid the pattern with original pinion shim: I do notice a sharp edge towards the flank, but no idea if this pattern is runable or not. Here is the example pattern from fabcraft: I'm sure Jim has some thoughts about this Sent from my SM-G935F using Tapatalk
What you are getting is not the same as the picture. Your pinion is a hair too deep,meaning you need slightly thinner pinion shim.
Allright. But how do you get the pinion bearing off without damaging it? There's no edge to press against, nothing? Sent from my SM-G935F using Tapatalk
That's the bad news. Some pullers can remove it without damage,but most will wreck the cage. I have a bearing that is honed for a slip fit,that allows me to pull it on & off. Call it a checker bearing.
Yeah, that's my big concern. I'm looking for a large bearing separator, but they are REALLY expensive.. Talking $400+ in Norway. Considering the PITA getting the pinion bearing off, I should have ordered two bearings and honed up one for testing like you have.. But this is my first time, I didn't know. Lesson learned. Theoretically, how would it be driving with my current pattern? Noise or damage? I will check with some local enthusiasts here, someones got to have a bearing separator I can borrow, but still I have a fair chance of ruining that bearing. Whats the price of one of these pinion bearings? Thanks!
Damaged the bearing when removing it. Have ordered two new bearings locally for another $210. Dang. But I'll have them tomorrow. Original shim was .034", I'll try with a .030-32"ish, and post the pattern.
Try the thinner pinion shim,but leave your carrier shims stacks the way they are,for the first mock-up. Your backlash will be a hair bigger,but record the new backlash setting,and run the pattern to see what you get.
Got the new bearings and honed up one of them. Now I can easily change pinion shim by hand. Retested with a .032" pinion shim. Backlash increased to .0136". This is the pattern: Are we going in the right direction you think? Thanks for taking your time! Sent from my SM-G935F using Tapatalk
Please use some small amount of gear oil on that pattern too. It will help see where the pattern is going. at least get it to .010 ,013 is just too much. These are Richmond based gears and they like .010 backlash for the best run pattern
Hey guys, The following pattern is run with .032" pinion shim and .0087" backlash. Tight fit on the carrier. How am I doing? Sent from my SM-G935F using Tapatalk
Looking good. What was the original pinion shim? Are you placing your hand on the outside of the ring gear,to create drag,as you rotate the pinion? It just helps get an accurate pattern. The weight of the car would be much greater.
