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Old 01-10-2008, 09:58 PM   #1
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Default TRF415 HELP PLEASE

I have a trf415 with a 4.5 novak, the problem is right hand corners the car does a 360 spin. I have tried driving it very slow and then easing the throttle on you get to about half throttle it spins. When I am start in a straight line with out touching the steering as soon as I get to half throttle only traveling about 5 metres the car spins I have tried differnt rubber tire componds, differnt front shock positions. Can some help me.

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Old 01-10-2008, 10:16 PM   #2
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Check chassis tweak.
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Old 01-10-2008, 10:32 PM   #3
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That is checked and fine.
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Old 01-10-2008, 10:36 PM   #4
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hows chassis balance, left to right. Most often wieght needs to be added to battery side (real bad if using lipos)
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Old 01-10-2008, 10:48 PM   #5
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Sounds like air in the rear shocks .
Also check the Front CVD's as they may have a loose set screw that is allowing the axle pin to stick or bind under right hand turns.
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Old 01-10-2008, 10:50 PM   #6
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Quote:
Originally Posted by convikt View Post
hows chassis balance, left to right. Most often wieght needs to be added to battery side (real bad if using lipos)
Na, it would just rollover alot just like my MiNi CooPer DoeS.
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Old 01-11-2008, 12:23 AM   #7
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removes your diff and replace tamiya grease with associated black grease......if still spin change the original ball to carbide balls i have the same problems, and already solve it using carbide ball and re grease the ball diff with associated black grease.........the tamiya grease too thin ..............fully tighten your diff (be careful no too over tighten the diff it will damage the plastic t-nuts) and release back 1/4 turn
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Old 01-11-2008, 01:21 AM   #8
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Exclamation So many possiblities and not enough time to write everything!

Wow, It could be lots of things!
It sounds like the diff. if I had to guess.
If not, it could be the wheel bearings or the diff bearings they might spin free by hand but under load they could lock up.
Check all your universals and make sure the pins aren't worn.
Also check your suspension arms they may be bent or the shafts could be bent. Put the pins on a hand drill and see if they spin straight.
It could be bent or worn rear uprights.
Last check the shocks, they should pivot freely on the ball connector. Or the ball connector could be worn also.
I can go on and on and on but this should be a good starting point!
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Old 01-11-2008, 07:28 AM   #9
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Quote:
Originally Posted by DRAG_ON View Post
removes your diff and replace tamiya grease with associated black grease......if still spin change the original ball to carbide balls i have the same problems, and already solve it using carbide ball and re grease the ball diff with associated black grease.........the tamiya grease too thin ..............fully tighten your diff (be careful no too over tighten the diff it will damage the plastic t-nuts) and release back 1/4 turn
Err are you mad ? Black grease should only be used in the thrust bearing, never on the diff balls.

For the diff I recommend Associated STEALTH grease, definately the best there is.

Regarding the actual problem, I'd guess a spool outdrive is broken or your one way is slipping depending on what you have up front.
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Old 01-11-2008, 07:51 AM   #10
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Quote:
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Na, it would just rollover alot just like my MiNi CooPer DoeS.
apples and oranges
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Old 01-11-2008, 02:14 PM   #11
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Quote:
Originally Posted by TRF415boy View Post
Err are you mad ? Black grease should only be used in the thrust bearing, never on the diff balls.

For the diff I recommend Associated STEALTH grease, definately the best there is.

Regarding the actual problem, I'd guess a spool outdrive is broken or your one way is slipping depending on what you have up front.
I am running a diff up front so I have brakes. Should I be running a spool or one way don't forget it is a novak 4.5.
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Old 01-11-2008, 06:38 PM   #12
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Quote:
Originally Posted by TRF415boy View Post
Err are you mad ? Black grease should only be used in the thrust bearing, never on the diff balls.

For the diff I recommend Associated STEALTH grease, definately the best there is.

Regarding the actual problem, I'd guess a spool outdrive is broken or your one way is slipping depending on what you have up front.
i don't think i'm mad read through his message he's running 4.5R Novak which have lots and lots of torque...........it will wear the grease very fast especially outdoor asphalt track all the dirt will come inside. I never try associated stealth grease, you could give em a try .... and if the car still spin check either it slip or nor......
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Old 01-11-2008, 09:35 PM   #13
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Quote:
Originally Posted by DRAG_ON View Post
removes your diff and replace tamiya grease with associated black grease......if still spin change the original ball to carbide balls i have the same problems, and already solve it using carbide ball and re grease the ball diff with associated black grease.........the tamiya grease too thin ..............fully tighten your diff (be careful no too over tighten the diff it will damage the plastic t-nuts) and release back 1/4 turn
I have lossened my diffs of to the point that they are slipping a little bit, but still no difference.I am running carbide balls all ready and are running 16 balls per diff I think not the standard 8. Anymore suggestions
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Old 01-11-2008, 10:27 PM   #14
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Originally Posted by 16skyline View Post
I have lossened my diffs of to the point that they are slipping a little bit, but still no difference.I am running carbide balls all ready and are running 16 balls per diff I think not the standard 8. Anymore suggestions
then tighten it .......... slipping diff especially the rear diff make you car slide because the balls and the diff plate not touch therefore it slip a lot therefore try to tighten your rear diff by 1/4 each and test it from there. Re Grease your ball diff..........
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Old 01-12-2008, 11:40 PM   #15
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I have rebuild the diffs with black grease and tightened them up just to the point that you can hold the diff arms and you can't turn the diff pulley. Put everything back onto the car but it is still spinning on right hand corners. I have check everything that has been mentioned so far.
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