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RC10B4/T4 Forum

Old 08-18-2011, 06:36 AM
  #14176  
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also it is a hobbywing sensorless motor.
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Old 08-18-2011, 06:44 AM
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Originally Posted by Boadazofa View Post
I too thought it was the diff (ball diff) but i eliminated that from the equation when i held the car down so it couldn't move and accellerated so the slipper slipped and the noise was there still.
I think i might get some new slipper pads as these ones might be to worn!
Try to move the metal pressed-on gear on the topshaft, it might becoming loose.
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Old 08-18-2011, 08:50 PM
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OK Racer got ya thank you again brother!!!! Also, can you tell me how I can find .300 & .307" on a ruler lol??? I'm up to the step where you need to adjust the collar on the shocks....

Thanks again!!!
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Old 08-19-2011, 07:37 AM
  #14179  
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I hated that part in the instructions...You have 2 options, you can either get a caliper and use that, or what I like to do, put a mark on the shock collar with a little bit of white paint and then just count how many turns you put on each side...You don't have to get the .300 or whatever the instructions say, for a starting point try and adjust the ride height[via the shock collar] so that when you pick the buggy up and drop it, a couple of inches, the rear a-arms and cvd's are level and the front a-arms are level when you look down on them...

Hopefull that made some sense, if not let me know and i'll try and do a better job explaining it...

Racer53
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Old 09-18-2011, 09:07 PM
  #14180  
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Default T4 Front Tires

What types of front tires are people using these days in their T4 trucks. I have just been using the kit rubber but there are so many options out there and I am seeing an increasing number using rear's on the front.

Ben
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Old 09-19-2011, 12:58 PM
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Originally Posted by auzzy_mate View Post
What types of front tires are people using these days in their T4 trucks. I have just been using the kit rubber but there are so many options out there and I am seeing an increasing number using rear's on the front.

Ben
This is probably best asked in the b4.1/t4.1 thread. This one has been retired for a long time, until recently when someone picked up a "new" B4 kit.
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Old 09-29-2011, 06:48 PM
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Hey Guys,

I had an old T4 I bought in 03 and recently put in a 3800KV Castle brushless with a 2s lipo for racing. I had a 19 tooth pinion on it however it was too fast for the track, I bought a 16 tooth pinion however when I mesh it with the spur (I used the paper trick to get the mesh right) the spur is hard to move. I can rock the spur back and forth between the pinion teeth however when I turn the spur it feels like something is binding. Is this normal?? When I put the 19 tooth spur on the spur can spin really nicely. I don't understand what's going on any help would be appreciated.

Thanks again!
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Old 09-29-2011, 06:53 PM
  #14183  
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May just need to move the pinion over a little. The teeth on the small 16 tooth pinion don't stick out as far as on a 19. You might be just on the inside of the teeth a little.
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Old 09-29-2011, 06:55 PM
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Originally Posted by Hokie_Racer View Post
Hey Guys,

I had an old T4 I bought in 03 and recently put in a 3800KV Castle brushless with a 2s lipo for racing. I had a 19 tooth pinion on it however it was too fast for the track, I bought a 16 tooth pinion however when I mesh it with the spur (I used the paper trick to get the mesh right) the spur is hard to move. I can rock the spur back and forth between the pinion teeth however when I turn the spur it feels like something is binding. Is this normal?? When I put the 19 tooth spur on the spur can spin really nicely. I don't understand what's going on any help would be appreciated.

Thanks again!
Make sure the 16t is the same pitch. It's probably 32 or 64. I'm asuming you're running 48p
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Old 09-29-2011, 07:17 PM
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Originally Posted by Hyde View Post
Make sure the 16t is the same pitch. It's probably 32 or 64. I'm asuming you're running 48p
could be the "normal" issue that the spur isnt round anymore, and is alittle warped... or that top shaft is bent.... orrr the bearing inside the case that holds the topshaft needs replaced.

usually check the spur first if it seems "round" check the bearing as they are pretty cheap.
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Old 09-29-2011, 11:41 PM
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Originally Posted by Hokie_Racer View Post
Hey Guys,

I had an old T4 I bought in 03 and recently put in a 3800KV Castle brushless with a 2s lipo for racing. I had a 19 tooth pinion on it however it was too fast for the track, I bought a 16 tooth pinion however when I mesh it with the spur (I used the paper trick to get the mesh right) the spur is hard to move. I can rock the spur back and forth between the pinion teeth however when I turn the spur it feels like something is binding. Is this normal?? When I put the 19 tooth spur on the spur can spin really nicely. I don't understand what's going on any help would be appreciated.

Thanks again!
It's hard to say without being able to feel it first hand but when you get into pinions that small the tooth angle changes and when you turn it by hand it can feel "different" due to the strong magnets and "snap" of the rotor when you rotate the motor. FYI it's not recommended to run 48p pinions smaller than an 18 tooth due to the angle of the teeth, they can cause increased wear. I'm not saying you can't run them or they don't work but by design they may increase wear on the spur gear and you just need to watch for it.
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Old 10-03-2011, 09:49 PM
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Thank you all for the information... it was my brushless motor for some reason. When I powered on the ESC the motor stopped binding and it moved smooth. Wish me luck next week will be my second time racing, my first time racing didn't end up to well, I broke the rear chassis plate which holds the rear arms and was out for good. If you guys have some tips specifically regarding the T4 please let me know. I will let you all know how I did on Saturday.

Thanks again.
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Old 10-08-2011, 08:55 PM
  #14188  
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My son and I raced at www.DKRaceway.com last sunday. His T4 is about 5 years old now but still going strong! 13.5 Novak Sport Brushless system. Someone else took the first two photos. Good shots!





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Old 10-27-2011, 11:10 AM
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Well, picked up a used (but very very new) Factory team B4. I wanted to get back into buggies for a while, but didnt want to sink a ton of cash, so picked up the b4 instead of the b4.1.

Anyone have any recommendations on a setup for med/high traction smooth clay?
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Old 10-29-2011, 12:01 PM
  #14190  
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I know its here somewhere,,,

what size drill bit is needed for the 4th hole on the rear shock tower!!!
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