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Location:
Brisbane
Registered:
May 2002
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 Diff rebuild information wanted (Anyone work at toyota?)
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Sun, 28 November 2004 05:19
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Hi, keen to try rebuilding a spare diff center I have in the shed. But I don't have the specs for backlash and carrier bearing preload for my diff center (its an E series out of an MX62 toyota cressida). I have the pinion preload value from my haynes manual... (also I'm planing to reuse the bearings so will need the values for used bearings).
Does anyone have access to this info for me! Anyone work in a diff shop (or know someone that could help me out), or even better work at toyota and be able to actually scan/photograph the pages out of the proper TSRM!!!!
Thanks!
Cheers
Wilbo
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Sun, 28 November 2004 12:00
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Setting up diffs is a bit of a black art... unless you happen to be highly experienced with this sort of thing I strongly recommend taking it to a diff shop and have it done by a pro. It's not that expensive you know!
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Sun, 28 November 2004 23:22
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Lol, I get where you are coming from, but I could get a whole new live axle assembly for $70 or so, why bother rebuilding?
I figure, I'll prbly spend a little on acquiring the tools (namely the inch pound torque wrench and dial gauge), but then I can keep trying until I get it right 
If I do it the first time and put it in and its noisy as hell, then I can always give it another go  (...and another, and another and )
I figure I don't have much to loose I'm looking at it as a learning experience as much as anything.
Cheers
Wilbo
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 00:38
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| wilbo666 wrote on Mon, 29 November 2004 07:22 |
...then I can keep trying until I get it right
...then I can always give it another go (...and another, and another and )
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You know crush washers can only be used once?
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 02:52
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| CrUZsida wrote on Mon, 29 November 2004 11:38 |
| wilbo666 wrote on Mon, 29 November 2004 07:22 |
...then I can keep trying until I get it right
...then I can always give it another go (...and another, and another and )
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You know crush washers can only be used once?
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yes.
But thats the only thing that isn't reusable to my knowledge (tho I also have friends/friends of friends that have reused them in the past with no ill effects...)
Cheers
Wilbo
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Location:
Adelaide
Registered:
September 2003
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 03:03
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| wilbo666 wrote on Mon, 29 November 2004 13:52 |
| CrUZsida wrote on Mon, 29 November 2004 11:38 |
| wilbo666 wrote on Mon, 29 November 2004 07:22 |
...then I can keep trying until I get it right
...then I can always give it another go (...and another, and another and )
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You know crush washers can only be used once?
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yes.
But thats the only thing that isn't reusable to my knowledge (tho I also have friends/friends of friends that have reused them in the past with no ill effects...)
Cheers
Wilbo
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One of my diffs disn't last with a'reused' crush washer.
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 03:49
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One of mine developed a god-awful whine with a re-used washer.
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 04:26
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lol, fair enough then! were yours ever over torqued during the reuse process, ie past the specified max limit... (bbaacchhyy or norbs)?
bbaacchyy, when you say yours "didn't last" with the reused washer, what exactly happened to it?
also did yours whine from the start with the reused washer norbs? (how exactly did it come about that you resued the washer?)
Cheers
Wilbo
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 13:05
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I had to remove the pinion flange to have it modified, and as a temporary measure I just put it back together while I was waiting for the TrueTrac to arrive. Yes it started to whine immediately after that.
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Registered:
August 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 13:48
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hey wilbo,
i say go for it, mate! good to see someone learning something new... and just 'cos ya can! 
that's all i wanted to say, just to try and offer you some support in the light of all this great 'advice' you've been getting. 
just think... when you learn to do this, you'll actually be able to help other people who pose the same questions on the forum in the future, rather than becoming a "i can't, so you won't be able to" keyboard-warrior!!!
maybe you could find a diff or trans shop and ask nice for some guidance on the numbers you need??
GO, WILBO!!! 
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 14:53
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Keyboard warriors indeed. I don't think you'd find a bigger DIY enthusiast than the 3 people who responded to this thread, and none of us are afraid of trying something different or doing something no-one else has attempted.
If you want to learn how to set up a diff just for the sheer hell of it, sure why not... but unless you're planning to set up diffs on a regular basis I can't see the value in it from a purely objective standpoint. Speaking for myself, I can only think of two occasions in the last 10 years where this skill would have been useful.
Still, they say learning something new is never a waste of time!
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Registered:
August 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 21:36
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| Norbie wrote on Tue, 30 November 2004 01:53 |
Keyboard warriors indeed. I don't think you'd find a bigger DIY enthusiast than the 3 people who responded to this thread, and none of us are afraid of trying something different or doing something no-one else has attempted.
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then it's ironic that none of you could make a positive contribution, isn't it?
| Norbie wrote on Tue, 30 November 2004 01:53 |
If you want to learn how to set up a diff just for the sheer hell of it, sure why not... but unless you're planning to set up diffs on a regular basis I can't see the value in it from a purely objective standpoint. Speaking for myself, I can only think of two occasions in the last 10 years where this skill would have been useful.
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would've been useful right here in this thread, dude.
| Norbie wrote on Tue, 30 November 2004 01:53 |
Still, they say learning something new is never a waste of time!
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you could've just quoted Wilbo, or myself, if you wanted to re-iterate our arguments.
i had a diff sent to me last week, after it had been reset by a mate... and he sure doesn't do that for a living. he's just the sort of guy who likes knowing things are done properly. i can guarantee that all 3 of you know his car, and it is an ongoing testament to his work. i have had the priviledge of learning from this guy since i was 17, and in the last 10 years the only thing he would ever criticise someone for, would be doing something dangerous... then again, if people learned to set up their diff properly, then maybe dudes wouldn't need to put truck diffs in their cars?
if you want to treat your diff as "set-and-forget" then go for it, but i really don't see how this lines up with you being one of the "biggest DIY enthusiasts" on the forum... an enthusiast would never say "no" to learning something new!
GO, WILBO! next stop, diff shop!!!
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Location:
Adelaide
Registered:
September 2003
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Mon, 29 November 2004 23:55
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Norminator, thanks for the support
I don't think norbs and bbaacchhyy should be in trouble for their views tho! They have been most helpful with their opinions and experiences (and in pretty well all the situations I've come across they have had nothing but love to give to the community hehe).
To be honest I agree wtih you guys that you have to draw the line at what is realistic for the backyard DIY'er to achieve (especially in a case like this where it isn't a highly rebuilt item)
With you reusing the washer (both norbs and bbaacchhyy again ), did you measure the pre load on the bearing before disassembly (doubt bbaacchhyy did lol considering the circumstances), and what did you use to measure the preload of the reassembled setup (did you measure it accurately?)
Thanks guys
Cheers
Wilbo
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Location:
Brisbane
Registered:
February 2003
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Tue, 30 November 2004 03:01
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given the excess of opinion suggesting that experts should fix diffs - can anyone suggest a diff shop in the western suburbs area (of brisbane) who would be competent at repairing toyota diffs and not take their time? as i'll need to transport the diff via taxi (as i have no hot spare) and collect shortly thereafter (as i need transport)
PM off list if you prefer.
tia, charles.
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Wed, 01 December 2004 23:58
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| wilbo666 wrote on Tue, 30 November 2004 10:55 |
With you reusing the washer (both norbs and bbaacchhyy again ), did you measure the pre load on the bearing before disassembly (doubt bbaacchhyy did lol considering the circumstances), and what did you use to measure the preload of the reassembled setup (did you measure it accurately?)
Thanks guys
Cheers
Wilbo
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Guys?
Cheers
Wilbo
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Location:
Adelaide
Registered:
September 2003
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Thu, 02 December 2004 13:25
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Wilbo,
No. To explain it a little more, it was done when a diffcentre was being changed in the RA23. Essentially, the pinion nut was simply undone a turn and rdone back to the same position (could tell by the marks).
It howled like a banshee within anbout 500m and got worse until we changed the whole centre over.
The guy that I get to do my diffs (and did the one in my Improved Production RX2) gets solid collars machined up to eliminate the need for the crush doovers, but theses have to be measured and then machined for each diff. Simple but fiddly
Cheers
MB
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Location:
Brisbane
Registered:
May 2002
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Sat, 04 December 2004 01:58
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| bbaacchhyy wrote on Fri, 03 December 2004 00:25 |
The guy that I get to do my diffs (and did the one in my Improved Production RX2) gets solid collars machined up to eliminate the need for the crush doovers, but theses have to be measured and then machined for each diff. Simple but fiddly
Cheers
MB
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Seems like an elegant solution. I might have to explore it further
Cheers
Wilbo
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Location:
Brisbane
Registered:
February 2003
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Re: Diff rebuild information wanted (Anyone work at toyota?)
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Sat, 04 December 2004 03:35
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so all you need is:
-a mill able to work with measurements of 0.1mm? (or better accuracy?)
-feed stock for the mill (bbaacchhyy: any idea what steel they used?)
-digital calipers
-a diff
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