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View Full Version : Gear diff maintenence


magictorch
17-06-2012, 09:06 AM
Hi, I would like to know how often people are re-filling their diffs, I have just had to refill my diff after 4 race meets, is this normal or do I need new seals and O rings?

OneKiwi
17-06-2012, 04:20 PM
I think the original orings are quite hard and people are using the orings from the 1/8th scale DNX408 shocks
Well at least I am.

Are you using a good amount of green slime? soaking the rings? Is anything split or cut?

Alan Reeves
17-06-2012, 04:26 PM
Do the 408 shocks have bigger o rings or can you use the 210 shock o rings? Mine loses it's oil after a day racing and therefore is proving to be very inconsistent :( i covered the standard seals in grease but they are not upto the job

OneKiwi
17-06-2012, 04:45 PM
Can't use the 210 o rings they are too small.

Do you know where its leaking from? the seals or the o rings? Get the DNX ones then forget about it

losichris
17-06-2012, 05:05 PM
Can't use the 210 o rings they are too small.

Do you know where its leaking from? the seals or the o rings? Get the DNX ones then forget about it

You can, i am, no leak and feels very nice
just put some black grease outside the oring

Alan Reeves
17-06-2012, 05:08 PM
Mine leaks from around the outdrives

losichris
17-06-2012, 05:24 PM
Mine leaks from around the outdrives

any oil leaking from screws? could be the larger seals not in properly

DangerCow
17-06-2012, 05:25 PM
I have a gear diff on order, and heard that some people use "black grease" on the gears instead of diff oil. Is this "black grease" the black molybdenum grease the 210 kit ships with?

jkclifford
17-06-2012, 05:45 PM
Use the treseray seals easy fit never leak.

To note when the outdrives have worn enogh that the black coating has worn( where the seals touch) they leak like hell.

hotrodchris
17-06-2012, 06:22 PM
4 meetings doesn't seem too bad!

s22jgs
17-06-2012, 06:32 PM
personally i say you should be changing the oil for each race meeting.

Its seriously discoloured after a couple of runs.

jkclifford
17-06-2012, 09:44 PM
the discoloration is the wear off the gears the problem is that silicone oil is to lubricate plastic, not metal gears. never really been sure why a silicone is used in gear diffs.

DBL15
18-06-2012, 03:58 AM
Black AE gear diff grease been in for a month or so using it 3 x per week and there is still the same amount of grease in there since day 1 :thumbsup:

magictorch
18-06-2012, 05:34 PM
I think the original orings are quite hard and people are using the orings from the 1/8th scale DNX408 shocks
Well at least I am.

Are you using a good amount of green slime? soaking the rings? Is anything split or cut?

I built it as per the gear diff build guide online, When I took the diff out it was dry where the diff halfs join the main gear but there was some build up around the outdrives. I will strip the diff completly to check for cuts/splits, It does seem from some of the responses that this is normal but I thought the gear diff was fit and forget.

magictorch
18-06-2012, 05:38 PM
Black AE gear diff grease been in for a month or so using it 3 x per week and there is still the same amount of grease in there since day 1 :thumbsup:


How does it feel with black grease compared to silicone? if that is more consistant then I will give it a try as pulling the gearbox appart on this thing every week does not appeal to me

hotrodchris
18-06-2012, 05:51 PM
I thought the gear diff was fit and forget.


Not quite fit and forget but ignore for a bit longer than a ball diff!!!!!!!
LOL:thumbsup:

magictorch
18-06-2012, 06:06 PM
Not quite fit and forget but ignore for a bit longer than a ball diff!!!!!!!
LOL:thumbsup:

:lol: At least rebuild cost is less.

jkclifford
19-06-2012, 02:35 AM
When i first got my 210 Had loads of grief with the ball diff the rd gear diff was not out so pit in an ae sc10 diff, as much as ot pains me to say this the 410 diffs seem crap in comparison. It doesn't leak and after countless runs the oil is still clear, I asume down to the plastic gears, not the rough cast metal ones.

DBL15
19-06-2012, 03:23 AM
How does it feel with black grease compared to silicone? if that is more consistant then I will give it a try as pulling the gearbox appart on this thing every week does not appeal to me

It's tight for the 1st 3 or 4 packs through it then it just stays the same till you want to refresh it

/tobys
19-06-2012, 11:31 AM
Official build guide on TD blog :thumbsup:

http://www.team-durango.com/blog/2012/06/12/210-gear-diff-build/

tomvanelsen
20-06-2012, 09:32 AM
if you want to use a sc10 gear diff will you need to modify it?
i tried a rc10 gear diff, but it didn't fit

jkclifford
20-06-2012, 11:27 AM
The only thing I had to do was fit the flanged bearings and shim to take the end float out.
And the plastic main gears had some flasing on one side, which I trimmed.away by running a knife down the angle.of every tooth to clear it. Simple.

I know others have used a M8 washer and dremeled the life out of ot to save on loads.of shins or buying new bearings

hotrodchris
20-06-2012, 04:22 PM
The only thing I had to do was fit the flanged bearings and shim to take the end float out.
And the plastic main gears had some flasing on one side, which I trimmed.away by running a knife down the angle.of every tooth to clear it. Simple.

I know others have used a M8 washer and dremeled the life out of ot to save on loads.of shins or buying new bearings
I used the 2wd SC10 diff but after about 8 meetings the differnce in the gear mesh finally gave up!

jkclifford
21-06-2012, 02:06 AM
The outdrives are the same diameter, and the main gear has the same no of teeth how is the mesh out?

hotrodchris
21-06-2012, 07:47 AM
I am led to believe that the diameters are slightly different so the teeth don't quite mesh full!

OneKiwi
21-06-2012, 08:00 AM
It was the same with the arrma diff that was close to the right size that people got before the TD one was released and like me mashed the idle gears etc.
Why not just get the original TD diff its what its designed for and now that the width problems are sorted its a perfect fit.

But it would be good with a marking of some sorts on the cover so you could know at a glance which side the gears go into.
Ive taken off the wrong side a couple of times.. frustrating

AmiSMB
21-06-2012, 08:01 AM
The overall diameter of the SC10 gear diff is slightly smaller than the Durango gear diff diameter. I have both.