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Old 02-20-2015, 11:24 PM
  #7246  
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M
Originally Posted by rcgod View Post
Looks like you need a different pinion gear with the set screw closer to the teeth. Or maybe a ball end hex driver will let you slide it in further and tighten.

I was actually thinking about dremeling out a notch in the cam,
but figured I'd wait for some responses here first.

Thought I may have assembled something wrong but after checking it over carefully, I don't think I have. Same issue with center diff and slipper clutch.
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Old 02-20-2015, 11:36 PM
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Originally Posted by jmkalt View Post
M


I was actually thinking about dremeling out a notch in the cam,
but figured I'd wait for some responses here first.

Thought I may have assembled something wrong but after checking it over carefully, I don't think I have. Same issue with center diff and slipper clutch.
I notched my cam on the top.. But now I seem to be having spur gear issues.

Also, it looks like you Spur is backwards. Offset is not the same..
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Old 02-21-2015, 01:26 AM
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Originally Posted by jmkalt View Post
Okay guys, maybe I'm just up way too late building but I have run into a strange problem.

In order to line my pinion gear up to the spur, I need to move it a little bit down the shaft, closer to the motor.

Problem is, the motor cam (mount) prevents access to the pinion set screw. The pinion is also too large to allow the cam to slip over the pinion gear, so it needs to be in place first.

I'm sure that there's something simple I'm not seeing at this late hour, so I'm asking for some fresh eyes and ideas.

Here's a picture:

When you are running the center diff the spur does get a bit closer to the motor bulkhead. Had the same issue on ours, but was able to flip the pinion and mount it the other way around on the motor shaft.

Just a tip to try if you already haven't
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Old 02-21-2015, 01:26 AM
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I dremelled a small groove in the cam. Also I shimmed the diff forward a little and when the slipper is fitted, I shim that back a little. This works perfectly for me. Just take care to note the orientation of the spur on the diff. The offset isn't equal.
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Old 02-21-2015, 04:16 AM
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Originally Posted by jmkalt View Post
Okay guys, maybe I'm just up way too late building but I have run into a strange problem.

In order to line my pinion gear up to the spur, I need to move it a little bit down the shaft, closer to the motor.

Problem is, the motor cam (mount) prevents access to the pinion set screw. The pinion is also too large to allow the cam to slip over the pinion gear, so it needs to be in place first.

I'm sure that there's something simple I'm not seeing at this late hour, so I'm asking for some fresh eyes and ideas.

Here's a picture:

Like was said, I ran into this and found that the spur was on backwards. When I flipped it so that the tooth # marking was towards the front of the car it corrected it.
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Old 02-21-2015, 04:53 AM
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I did try flipping the spur around and the offset got worse, so I guess I already had it installed correctly on the center diff.

I guess I'll just try a different brand pinion and see if it's designed differently.
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Old 02-21-2015, 05:50 AM
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Originally Posted by jmkalt View Post
I did try flipping the spur around and the offset got worse, so I guess I already had it installed correctly on the center diff.

I guess I'll just try a different brand pinion and see if it's designed differently.
Ahh, bummer. I use Robinson Absolute pinions, it's tight but I can still get the allen in when they are meshed.

Last edited by kevinpratt823; 02-21-2015 at 07:41 AM.
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Old 02-21-2015, 08:49 AM
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Originally Posted by jmkalt View Post
I did try flipping the spur around and the offset got worse, so I guess I already had it installed correctly on the center diff.

I guess I'll just try a different brand pinion and see if it's designed differently.
What brand pinion is that? I use Robinson no problems. Just looked online and most brands have the set screw closer to the gears than that one does.
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Old 02-21-2015, 11:28 AM
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All you needed to do was flip the pinion over so that the set screw is toward the outside and not toward the mount
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Old 02-21-2015, 11:30 AM
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Have any of you guys received a center gear diff from stormer ? i preordered one in like december
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Old 02-21-2015, 11:41 AM
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There are none in stock anywhere....A Main included, but some were saying calling RC America directly as they have them? Not sure why they are not getting to shops if the US Distributor has them in stock....
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Old 02-21-2015, 12:06 PM
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Calling rc America is the way to go. I've had my gear diff for months now. Fast shipping and priced well.
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Old 02-21-2015, 12:45 PM
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Originally Posted by HeavyD99 View Post
There are none in stock anywhere....A Main included, but some were saying calling RC America directly as they have them? Not sure why they are not getting to shops if the US Distributor has them in stock....
RC America does have them in stock currently anD Absolute Hobbyz has them as well.
I ordered mine from the XRay shop in Austria which takes about 10 days to arrive to any state side location.
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Old 02-21-2015, 12:58 PM
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Absolute Hobbyz received xb4 center gear diffs this past Wednesday the 18th. I think the are $61.
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Old 02-21-2015, 01:45 PM
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Originally Posted by rcgod View Post
What brand pinion is that? I use Robinson no problems. Just looked online and most brands have the set screw closer to the gears than that one does.
I think its a muchmore pinion.
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