Hi Guy,
Some of the "excessive" play may be in loose u-bolts. Check those out.
Paul
PAsgeirsson@juno.com
On Tue, 27 Apr 1999 07:06:23 +0100 "Guy"
<Guy@weller-lakes.freeserve.co.uk> writes:
>Thanks Paul,
>As you say what started this was talk of broken half shafts,.
>I was looking to see if there was something simple I needed to attend
>to to
>reduce the chance of this happening to me (again) as I know my diff is
>worn.
>Guess I will one day find a replacement diff
>Thanks, all
>Guy
>-----Original Message-----
>From: Paul A Asgeirsson <pasgeirsson@juno.com>
>To: Guy@weller-lakes.freeserve.co.uk
><Guy@weller-lakes.freeserve.co.uk>
>Cc: pasgeirsson@juno.com <pasgeirsson@juno.com>; toobmany@bigpond.com
><toobmany@bigpond.com>; spridgets@autox.team.net
><spridgets@autox.team.net>
>Date: 27 April 1999 01:50
>Subject: Re: Fw: Diffs.
>
>
>>Hi Guy,
>>
>>What started all this was a suggestion of a lister that the broken
>axle
>>was due to too much play in the dif.
>>
>>I wasn't trying to introduce any confusion, but maybe I did. The
>only
>>place you can fit shims in the dif. is to move either the pinion over
>to
>>one side or the other, or to move the pinion forward or back. These
>are
>>procedures best left to a shop with equipment to adjust or set up a
>new
>>set of bearings in the dif and/or replace the ring gear and pinion.
>>
>>Now about the thrust washers. They are located behind the two sets
>of
>>spider gears and they are of two types. One set is a flat phenolic
>>washer that rarely wears down, on one set of gears that the axle
>shaft
>>end fits into, and the other is a set of cup shaped copper washers
>behind
>>the other two spider gears. They work against a rather small surface
>>area and wear down somewhat more rapidly. Now when they wear down,
>the
>>mating surfaces of the spider gears move out to the ends of the
>teeth,
>>leaving them more vulnerable to breaking. Now here's a bit of info.
>I
>>have replaced only one set in almost thirty years of driving LBC's
>and
>>working on customers cars. Maybe it's just good luck.
>>
>>The only time you would normally access these pieces is when you need
>to
>>remove a piece of stuck, broken axle shaft. Otherwise, it's no big
>deal
>>you don't worry much about this.
>>
>>On cars that are raced with stock differentials and do a lot of one
>wheel
>>spinning on take off, that's a different story. They will be prone
>to
>>high rates of wear, but usually something else will go south (kaput!)
>so
>>this whole assembly is tossed and another used one is installed.
>>
>>Paul
>>
>>PAsgeirsson@juno.com
>>
>>On Mon, 26 Apr 1999 22:09:28 +0100 "Guy"
>><Guy@weller-lakes.freeserve.co.uk> writes:
>>>PAul,
>>>So this is different to fitting shims ??
>>>I am now confused as your last message seemed to be saying leave
>well
>>>alone
>>>and not to consider tampering with the diff at all ?
>>>
>>>Now what ?
>>>Guy
>>>-----Original Message-----
>>>From: Paul A Asgeirsson <pasgeirsson@juno.com>
>>>To: toobmany@bigpond.com <toobmany@bigpond.com>
>>>Cc: spridgets@autox.team.net <spridgets@autox.team.net>
>>>Date: 26 April 1999 13:33
>>>Subject: Re: Fw: Diffs.
>>>
>>>
>>>>Your right, Peter. Always a good idea to have fresh thrust washers
>>>under
>>>>the spider gears and an "unworn" spider gear shaft. Saves broken
>>>spiders
>>>>by improving the tooth contact.
>>>>
>>>>Paul
>>>>
>>>>PAsgeirsson@juno.com
>>>>
>>>>On Mon, 26 Apr 1999 23:06:19 +1000 "Angela Hervey-Tennyson & Peter
>>>>Westcott" <toobmany@bigpond.com> writes:
>>>>>
>>>>>True - but try reshimming the spider gears and while you're at it
>>>>>replace
>>>>>the shaft and lock pin.
>>>>>
>>>>>Peter Westcott
>>>>>
>>>>>----------
>>>>>From: Paul A Asgeirsson <pasgeirsson@juno.com>
>>>>>To: Guy@weller-lakes.freeserve.co.uk
>>>>>Cc: spridgets@autox.team.net
>>>>>Subject: Re: Fw: Diffs.
>>>>>Date: Monday, 26 April 1999 8:17
>>>>>
>>>>>On Sun, 25 Apr 1999 18:59:01 +0100 "Guy"
>>>>><Guy@weller-lakes.freeserve.co.uk> writes:
>>>>>>
>>>>>>Oh, Great List Knowledge,
>>>>>>
>>>>>>The diff on my 1500 has a fair amount of backlash, and this talk
>of
>>>>>>broken
>>>>>>halfshafts is beginning to get to me. I have had one break
>before.
>>>>>>If worn diffs add to the risk .....
>>>>>>Anyway, what sort of a job is it to rebuild a diff unit, or can I
>>>at
>>>>>>least
>>>>>>reduce the backlash with shims ?
>>>>>>
>>>>>>Guy
>>>>>
>>>>> Hi All.
>>>>>
>>>>>The issue of excessive backlash on the pinion gear is something
>that
>>>>>really can't be altered without a NEW ring gear and pinion.
>Assuming
>>>>>there is no more than marginally excessive noise from the dif
>>>>>assembly,
>>>>>the backlash you got is what you are stuck with. Any attempt at
>>>>>changing
>>>>>it will result in change of heel, toe, flank and face contact on
>the
>>>>>ring
>>>>>gear resulting in horrible changes of sound levels from the rear
>>>end.
>>>>>The correct amount of back lash is etched on the side of the ring
>>>gear
>>>>>near the outer perimeter. This is for a new one, not one with 35
>>>>>years
>>>>>of use on it. So enjoy the ride and don't fuss about the backlash
>>>>>very
>>>>>much.
>>>>>
>>>>>Paul
>>>>>
>>>>>PAsgeirsson@juno.com
>>>>>
>>>>
>>>>
>>>
>>
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