iwbunting
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| posted on 19/10/04 at 09:44 PM |
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Sierra diff rebuilding
Does anyone have any information on rebuilding a sierra differential.
I want to have my casing stove enamelled but cant find the info i need to rebuild it afterwards.
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JohnN
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| posted on 19/10/04 at 09:54 PM |
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Ian,
I understand that the pre-load on the diff pinion shaft is a critical setting when re-building.
Seem to remember from english axle days that there may be a washer which crushes at the right pre-load, then again, maybe not. if you get it wrong, at
best the axle will whine, at worst, wear out very quickly.
I'm guessing that a very old haynes manual might explain the re-build procedure & settings, whereas recent manuals (1990 onward...) are
printed on crappy paper and are apt to describe most tasks as too complex for Mr Average.
John
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nick205
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| posted on 19/10/04 at 10:06 PM |
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I think the general opinion on here has been that if it 'needs' re-building it's easier and cheaper to get another one rather than
try re-building it.
Nick
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James
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| posted on 19/10/04 at 10:45 PM |
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quote:
Originally posted by iwbunting
I want to have my casing stove enamelled but cant find the info i need to rebuild it afterwards.
Is it expensive to do?
Just wondering what you'll gain from having it done?
If you just want it to look nice then a quick shot blast to clean it up followed by paint seems to work ok:
 
Is that better?
All the best,
James
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Stu16v
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| posted on 20/10/04 at 05:45 PM |
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quote:
I want to have my casing stove enamelled
Seems a lot of hassle to go to, when the only person that is likely to see it on a regular basis is the MOT man once a year... 
Dont just build it.....make it!
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iwbunting
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| posted on 20/10/04 at 09:17 PM |
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Yeah ok.I get the point.....Just clean and paint...What the hell...Thanks anyhow.
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James
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| posted on 21/10/04 at 10:40 AM |
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quote:
Originally posted by Stu16v
<snip>when the only person that is likely to see it on a regular basis is the MOT man once a year...
And, of course, anyone you care to run over! 
James
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Stu16v
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| posted on 21/10/04 at 06:16 PM |
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quote:
And, of course, anyone you care to run over!
What, on a regular basis?
Iwbunting...dunno if I have may of offended (difficult to tell on t'internet...). If so, sorry...
I spent hours degresing and wire brushing my diff-and giving it a loverly coat of paint. Only to find out that it whined more than the Mrs. So I got
another one out of the scrappy, washed it, and slapped it in. No more noise, and my car looks just the same now as it did before. The point I an
feebly trying to make is that there is a shedload of work making your own car-but the time and cost in stove enamelling etc is better spent on bits
where you/other people will really appreciate it.
Just thoughts/advice from the wearer of the 'Been there-done that' T-shirt...
[Edited on 21/10/04 by Stu16v]
Dont just build it.....make it!
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Terrapin_racing
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| posted on 22/10/04 at 01:21 PM |
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........... All diffs use a crush washer to set clearances removing and refitting oil seals can be troublesome. Start with your torque wrench on a low
setting and keep upping slightly until you can check the setting at which it comes undone. Add 5 lbs to this to retighten.
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