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Pinion gear set up help

ok thanks Brian. Some gentle running in too I reckon!:)

Thanks for your help. I'll keep you posted on the front one!!:waytogo:
 
front time!

OK this is the front set. Seems to me that your driving the opposite side of the teeth on the front, or am I being a bit dim??!!
If it is opposite, does the same pattern rules apply?
Thanks.
This is with 9thou b/l so I can tighten that up a bit if nec (spec says 6-10thou)

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Looks like the pinion is too deep on the drive side and too shallow on the coast side. That will often confuse people because you would expect the pattern to be even front to back.

Overall it looks pretty good to me.

Why do you think your spiders are shot. Do they have scratches on them? Because that is normal to a point.
 
One of the smaller gears has lost all the hardening off of one tooth and a few others have bits missing...not too pretty!

So you reckon I can go with the shimming I have on the front then?
Think I'd like to tighten up the b/l a touch. Let me know about the spider gears please, thanks.:grin:
 
Yeah the set-up looks good. As long as you have the BL between .006 and .010 it is fine. I usually shoot for .007 - .008 just to be in the middle of the range.

I will talk to Alex tomorrow or monday and see what he has for spiders and what he would like for them...$ wise.
 
Ok that's great thanks. Meanwhile I'm sitting at home (it's about midnight) trying to figure out why, to turn the front ring gear anti-clockwise it would appear that the pinion drives against what is supposed to be the coast side of the teeth! It's driving me crazy trying to figure out why I can't figure it out!!!!
 
southernspeed said:
Meanwhile I'm sitting at home (it's about midnight) trying to figure out why, to turn the front ring gear anti-clockwise it would appear that the pinion drives against what is supposed to be the coast side of the teeth! It's driving me crazy trying to figure out why I can't figure it out!!!!
Oh, now I see what you are saying. I guess I didn't understand before. You are correct though so you can stop beating you head over it.
 
EPILOGUE !!

THIS IS NOT A QUIN MARTIN PRODUCTION
(you'll need to be over 40 to get that!)
All done, been for a test drive and all seems well so far. I guess I'll know in a 100miles or so whether I did a good job or not!!
This is just for anyone doing a search on this subject.
If like me you're thinking of doing your own gear swaps then read thru this post and think hard! I reckon it would be an easy way to blow $500-$600 if you screw it up.
I'd never done this job before but I am a motorcycle mechanic with some 20 odd years in the trade (7 in my own business) and have a good machine shop with a press and lathes/mill to make up tools for pressing bearings and holding the yoke.
The whole job is common sense and straight forward once you have the know how (which I DON'T proclaim to have yet!!). A job I'm sure next time around, that would be much quicker and easier just due to a bit of experience (infact the front was much quicker than the rear that I did first.)
If you think you're up for it then I'd just say this to you...if you're in doubt about any of it...ask! Readmix's advice to me on here was invaluable. Reading those patterns isn't as straight forward as you may think.
Take you're time and double check everthing. Pre-loading the pinion bearings is probebly the easiest thing to rush and screw up as they tighten up real quick once they're 'almost there'.
Get advice first too on what tools you'll need as once you knock out the old pinion shaft there's no going back!
But now the job is done and it's driving ok, it's very satisfying, and saved a lot of money that I was going to spend at a specialists shop! :grin:

EPILOGUE over...thanks for watching!
 

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