[Rovernet] play in 3500s differential

Vern Klukas vern at inkspotco.com
Tue Apr 26 19:46:37 EDT 2016


Those are the balance weights. Factory stuff.

The half shafts are pretty much bulletproof. The cracking you’ve heard about is probably the half shaft stub axles in the diff, which do crack and fail regularly.

Yours
Vern

> On Apr 26, 2016, at 1:07 PM, peter king via Rovernet <rovernet at rovernet.org> wrote:
> 
> Thanks, Garrett. 
> 
> The u-joints in the half shafts did not have grease fittings, but I am replacing them with Spicers that do. 
> 
> Question re: the half shafts:  Do you know if these were originally manufactured with small “patches”—thin rectangular pads of steel affixed to the outside of the shafts. Mine have these, and they do not have visible welds—I’m wondering if they were designed to balance the shafts? It’s possible that they were added at some time. I’ve read about cracking on these shafts…
> 
> Hope to see you at the Rover meet.
> 
> pk
> 
> 
>> On Apr 26, 2016, at 3:45 PM, garrett bourque via Rovernet <rovernet at rovernet.org> wrote:
>> 
>> Hello Peter,
>> It sounds like you are doing some pretty involved work on the driveline
>> of your Rover.  I have disassembled De Dion tubes on these cars before.
>> There is a big O ring, around the inner tube, that keeps the small amount
>> of oil that should be added, from dripping out to the area where the boot
>> is, and ruining the boot.  The boot's job is only to keep the dirt and grit
>> outside the telescoping tubes, not hold oil.
>> The De Dion tube is designed to keep both wheels parallel with each
>> other, no matter what position in the rear suspension's travel each wheel
>> is in. The car can be leaning, while cornering or upright. The suspension
>> can be compressed, while carrying weight, or hitting a bump.  In all these
>> positions, each rear wheel can move up and down independently, but they
>> stay parallel and do not"steer" the rear of the car as some independent
>> rear suspension setups are prone to do.  Good luck with your repairs!
>> Ujoints in the axle half shafts do take a lot or pressure while the car is
>> in use, so it is a good idea to replace them.  If possible purchase joints
>> that DO have a grease fitting in them.  Some do not, depending on where
>> they come from!  I dug me 3500S out of storage last week and am having a
>> blast driving it around.  It needs a few repairs and some upkeep done to
>> it, but I will come down to the Rover gathering as I always try to do!
>> Take care, Garrett Bourque
>> 
>> On Tue, Apr 26, 2016 at 3:25 PM, peter king via Rovernet <
>> rovernet at rovernet.org> wrote:
>> 
>>> Hi Lance,
>>> 
>>> Thanks for confirming that. I also had my tranny checked and re-sealed and
>>> replaced all the u-joints except the half shafts. Now it’s their turn. My
>>> tranny has leaked like a sieve ever since I had it re-assembled with new
>>> seals, and the guy who did that disappeared, but that’s another story and a
>>> future project to undertake…
>>> 
>>> in the meantime, I’m enjoying the never ending learning experience.  I had
>>> the Dedion tube apart yesterday, trying to understand just how it works. My
>>> gaiter was torn, and I had fashioned a makeshift one out of garbage bags
>>> and duct tape, which held up pretty well.  The confusing thing was that
>>> once I removed the duct tape, the inner tube was freely moving in both
>>> directions inside the outer tube—the retaining clip was not preventing it
>>> from moving past the seal and retaining ring. So I was actually able to
>>> slide the inner tube out completely without removing the retaining clip. It
>>> appears that the clip is designed to prevent the tube from slipping past
>>> the steel retaining washer, so any “telescoping” would be inward,
>>> wheel-to-wheel, vs. outward.  For some reason, this clip was not doing its
>>> job.
>>> 
>>> Looking forward to a one day clunkless, dripless, un-sluggish ride in the
>>> 3500s!
>>> 
>>> Peter
>>> 
>>> 
>>> 
>>> 
>>>> On Apr 26, 2016, at 2:48 PM, LANCE LA CERTE PSY D via Rovernet <
>>> rovernet at rovernet.org> wrote:
>>>> 
>>>> Peter, since I just completed the exact job you're undertaking, I can
>>> 2nd Vern's response that the 'play' you have is acceptable.  I had a really
>>> bad 'clunk' but it was only at slow speeds, usually when the car was coming
>>> to a stop.  Turned out it indeed was a bad u-joint.   The bad news; the
>>> other 'clunk' from engaging the transmission never went away.   I remember
>>> we've had this conversation several times on Rovernet, and apparently that
>>> clunk is almost a badge of honor with that atrocious BW35.  I've never been
>>> able to eliminate it, even after having the tranny completely rebuilt and
>>> then replacing all of the u-joints along the entire drive line.
>>>> Best wishes,   Lance
>>>> 
>>>> Lance La Certe, Psy.D.
>>>> Outside of a dog, a person's best friend is a book.  Inside of a dog
>>> it's too dark to read.
>>>> 
>>>> 
>>>> 
>>>> 
>>>>> Date: Mon, 25 Apr 2016 21:31:43 -0400
>>>>> To: rovernet at rovernet.org
>>>>> Subject: [Rovernet] play in 3500s differential
>>>>> From: rovernet at rovernet.org
>>>>> CC: peter at king-co.com
>>>>> 
>>>>> Hi all,
>>>>> 
>>>>> I’m in the middle of replacing half shaft u-joints in the 3500s, and
>>> replacing seals and gaiter on the Dedion tube, and I noticed that there is
>>> a lot of free play in the differential when I rotate the road wheel back
>>> and forth. A “blank space” before engaging. How much play is normal, and
>>> what’s the best way to measure this? I made a set of marks on the outer
>>> edge of the brake disc, and measured 3/4” of “blank space” when I move the
>>> wheel back and forth. I have no idea if that’s a meaningful measurement,
>>> but it’s a place to start the conversation.
>>>>> 
>>>>> Any thoughts on this?
>>>>> 
>>>>> thanks,
>>>>> 
>>>>> Peter
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> -------------- next part --------------
>>>>> An HTML attachment was scrubbed...
>>>>> URL: <
>>> http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160425/82fc44ff/attachment.html
>>>> 
>>>>> _______________________________________________
>>>>> Rovernet mailing list
>>>>> Rovernet at rovernet.org
>>>>> http://rovernet.org/mailman/listinfo/rovernet_rovernet.org
>>>> 
>>>> -------------- next part --------------
>>>> An HTML attachment was scrubbed...
>>>> URL: <
>>> http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/0088cbdb/attachment.html
>>>> 
>>>> _______________________________________________
>>>> Rovernet mailing list
>>>> Rovernet at rovernet.org
>>>> http://rovernet.org/mailman/listinfo/rovernet_rovernet.org
>>> 
>>> 
>>> 
>>> 
>>> Peter King + Company
>>> 10 Derby Square
>>> Suite N2
>>> Salem, MA 01970
>>> 617-292-7877 x302
>>> www.king-co.com <http://www.king-co.com/>
>>> www.facebook.com/pkingco <http://www.facebook.com/pkingco>
>>> 
>>> 
>>> 
>>> 
>>> 
>>> -------------- next part --------------
>>> An HTML attachment was scrubbed...
>>> URL: <
>>> http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/feeb8e0c/attachment.html
>>>> 
>>> -------------- next part --------------
>>> A non-text attachment was scrubbed...
>>> Name: pkco_k.png
>>> Type: image/png
>>> Size: 569 bytes
>>> Desc: not available
>>> URL: <
>>> http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/feeb8e0c/attachment.png
>>>> 
>>> _______________________________________________
>>> Rovernet mailing list
>>> Rovernet at rovernet.org
>>> http://rovernet.org/mailman/listinfo/rovernet_rovernet.org
>>> 
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL: <http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/5006fe35/attachment.html>
>> _______________________________________________
>> Rovernet mailing list
>> Rovernet at rovernet.org
>> http://rovernet.org/mailman/listinfo/rovernet_rovernet.org
> 
> 
> 
> 
> Peter King + Company
> 10 Derby Square
> Suite N2
> Salem, MA 01970
> 617-292-7877 x302
> www.king-co.com <http://www.king-co.com/>
> www.facebook.com/pkingco <http://www.facebook.com/pkingco>
> 
> 
> 
> 
> 
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/de5b8161/attachment.html>
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: pkco_k.png
> Type: image/png
> Size: 569 bytes
> Desc: not available
> URL: <http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/de5b8161/attachment.png>
> _______________________________________________
> Rovernet mailing list
> Rovernet at rovernet.org
> http://rovernet.org/mailman/listinfo/rovernet_rovernet.org

   inkspotco.com · 250 864 5619 · in at inkspotco.com




-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/4c676123/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: E-mail Signature logo.png
Type: image/png
Size: 22660 bytes
Desc: not available
URL: <http://rovernet.org/pipermail/rovernet_rovernet.org/attachments/20160426/4c676123/attachment.png>


More information about the Rovernet mailing list