XRAY - Model racing cars

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PostPosted: Thu Sep 06, 2007 06:08:20 
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Joined: Sat Jul 07, 2007 07:35:07
Posts: 19
Location: Kuala Lumpur, Malaysia
teamgp wrote:
emeel_mavic wrote:
hey guys..can you share with me about the trust bearing wear out/damage issues?i broke mine during my 1st a main,i think the advantage is the damaged still allow you to race without jamming the centax like orther brand trust bearing,just i see the lifetime bit shorter.. :(
what do you think?

my clutch endplay 0.15-0.2,clutch gap 0.75.

:wink: :wink:


Your end play is too much and should be around .1mm. More end play causes more unwanted stress on the thrust bearing as the entire end bell assembly will slam it together on engagement.

I'm actually running a .5mm air gap that has great engagement and much less wear on the shoe. I'm also running an SL3 with a 10mm spring setting. With the small air gap, the emphasis for me has been adjusting the spring setting in .1mm increments until I found the right engagement.

The manual calls for a .6mm to .7mm air gap though. When I tried increasing it above .7mm I found that the flyweights were being stressed too much and cracking around their pin holes. I even tried 1.0mm and the flyweights actually wedged in between the flywheel and the clutch disk and locked up the clutch. :shock:

Make sure you grease the thrust bearing at least every other tank too. :wink: I went through three of them until I started to grease it every other run. Since then I've been using the same bearing (at least two gallons) without any problems.


hello bro..

i still worn off the trust bearing even after .1mmendplay and .65gap,frequent thick oil application after cleaning coz our surface quite trapping dirt inside. :cry:


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 Post subject:
PostPosted: Thu Sep 06, 2007 14:58:23 
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Joined: Fri Oct 08, 2004 09:01:33
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Location: Hampton/Va Beach USA
emeel_mavic wrote:
hello bro..

i still worn off the trust bearing even after .1mmendplay and .65gap,frequent thick oil application after cleaning coz our surface quite trapping dirt inside. :cry:


What grease/lube are you using for the thrust bearing?


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 Post subject:
PostPosted: Thu Sep 06, 2007 15:49:05 
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Joined: Sat Oct 23, 2004 08:22:54
Posts: 853
Location: Holland
Every type of grease will work.


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 Post subject:
PostPosted: Sun Sep 09, 2007 18:16:21 
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Joined: Sat Jul 07, 2007 07:35:07
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Location: Kuala Lumpur, Malaysia
graphite black grease&thick bearing oil every after 2tanks.


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 Post subject:
PostPosted: Sun Sep 09, 2007 19:23:42 
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Joined: Sun May 06, 2007 02:41:49
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Location: Portland, Oregon, USA
Roelof wrote:
Every type of grease will work.


How about no grease at all?

Yesterday I raced against one of the best onroad drivers from our area (Northwest US) who also has an NT1. At the beginning of this season, he replaced the original NT1 thrust bearing with one from a different car. He is at the end of his second season using this thrust bearing and he has NEVER greased it.

For my thrust bearing, the new one from Xray, I'm using a very little dab of Mugen Super Grease, every race day.


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 Post subject:
PostPosted: Sun Sep 09, 2007 20:48:15 
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Joined: Sat Oct 23, 2004 08:22:54
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Location: Holland
It can work... but imagine the high rpm's can throw out al lot of grease...
The thrustbearing will live a lot longer when you shimm out the endplay under the clutchbell. An endplay of <0.1 mm will keep the thrustbearing more on its place and will get less punch when engaging the clutch.

I personally do not use the ring with the balls, only a brass ring between the 2 steel discs and works fine to me. Ceramic rings are in order to get a lower friction. This solution will give a flauwless thrustbearing.


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 Post subject:
PostPosted: Mon Sep 10, 2007 02:54:14 
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Joined: Sun Feb 19, 2006 03:59:21
Posts: 185
Location: Australia
I have over 20 hours on my current thrust bearing :D

No secrets just shim to 0.1 & grease with Mugen super grease every hour 8)


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 Post subject:
PostPosted: Mon Sep 10, 2007 13:52:32 
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Location: Hampton/Va Beach USA
Chris Russell wrote:
I have over 20 hours on my current thrust bearing :D

No secrets just shim to 0.1 & grease with Mugen super grease every hour 8)


Same here. :wink:


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 Post subject:
PostPosted: Tue Sep 11, 2007 22:58:38 
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Joined: Wed Oct 27, 2004 12:37:09
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Chris Russell wrote:
I have over 20 hours on my current thrust bearing :D

No secrets just shim to 0.1 & grease with Mugen super grease every hour 8)



Mugen supergrease is nice, but it is thick! I used it but the first time starting on the starterbox, the wheel spin a little because it's so thick :)


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 Post subject:
PostPosted: Wed Sep 12, 2007 01:55:38 
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Joined: Sun Feb 19, 2006 03:59:21
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Location: Australia
Yes true, I give the clutch bell a few good spins (hit with hand in downward motion :D ) to get rid of any excess grease before I put the engine back in the car.

The best thing about the grease is it stick to anything & there is always a coating left on the bearings.


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 Post subject:
PostPosted: Fri Sep 14, 2007 09:24:01 
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Joined: Fri Sep 03, 2004 11:22:56
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Location: Trencin, Slovakia
HUDY will release shortly new super graphite diff grease. Watch www.hudy.net shortly. Using the diff grease for the axial bearing increases the life of the bearing. The thrust bearing in the clutch must be regularly lubricated and then will last long enough.


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 Post subject:
PostPosted: Fri Sep 21, 2007 17:58:52 
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Joined: Mon Mar 13, 2006 05:23:52
Posts: 10
Location: Brazil
Ok guys, here in Brazil i use my NT-1 abou 1 gallon and only one thing I lost is the side belt.

Some guys lost dog bones, bu I put more o-rings and solve my problems.

Thust Bearing, always put grease..... always don't have any problems.

I will start de second gallon, and when is finish i give for all a feedback. I will sell the car in my city.

www.vmautomodelismo.com.br ( Brasilia Championship )


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 Post subject:
PostPosted: Mon Sep 24, 2007 21:00:05 
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Joined: Fri Oct 08, 2004 09:01:33
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Location: Hampton/Va Beach USA
All,

The downloadable XRAY NT1 Instruction Manual in the [url=http://forum.teamxray.com/viewtopic.php?t=5351&start=0&postdays=0&postorder=asc&highlight=]NT1 Knowledge Base (FAQ) thread
[/url] has been updated to allow printing. :D


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 Post subject: What are the must have options for the Nt1
PostPosted: Thu Oct 04, 2007 04:47:25 
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Joined: Tue Sep 18, 2007 04:04:10
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Location: MeMpHiS Tn
Hey guys Im looking at getting an Nt1 for next season .... What kind of hop ups would yall recommend getting before or when I purchase a Nt1 .....Thanx in advance


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 Post subject: Re: What are the must have options for the Nt1
PostPosted: Thu Oct 04, 2007 05:26:14 
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Location: Brazil
Kevin Neely wrote:
Hey guys Im looking at getting an Nt1 for next season .... What kind of hop ups would yall recommend getting before or when I purchase a Nt1 .....Thanx in advance


I only recomend "CVD drive shaft". The car is very consistent, and stock you will be competitive on races.

www.vmautomodelismo.com.br


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 Post subject: Re: What are the must have options for the Nt1
PostPosted: Fri Oct 05, 2007 10:10:52 
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Kevin Neely wrote:
Hey guys Im looking at getting an Nt1 for next season .... What kind of hop ups would yall recommend getting before or when I purchase a Nt1 .....Thanx in advance


Allow wheel things... the plastic fall of, very annoying... and the CVD's.. but that's it.. maybe the multidiff to go to solid axle...


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 Post subject: Re: What are the must have options for the Nt1
PostPosted: Thu Nov 29, 2007 08:43:34 
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Joined: Sat Jul 07, 2007 07:35:07
Posts: 19
Location: Kuala Lumpur, Malaysia
Kevin Neely wrote:
Hey guys Im looking at getting an Nt1 for next season .... What kind of hop ups would yall recommend getting before or when I purchase a Nt1 .....Thanx in advance


stock car is ok for you to starts off,talk bout basic options:UJ for better driving and feel ofcoz zero shaft missing.
yellow shoe for engine tuning performance,depends on how and what you want your clutch to react and also track condition.
fron multi 1way for 3 type settings.
aluminium hexagon if you feel doubt bout the plastis,but we dont have any problems here,we use lock flange wheelnut.
wire sway 2.2&2.4,if you have a nice flat good traction track,why not get the butterfly,it helps alot on kit tuning.

happy hunting! :wink:


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 Post subject:
PostPosted: Tue Jan 15, 2008 00:37:35 
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Joined: Sun Jan 30, 2005 01:19:02
Posts: 338
Location: Portland, OR USA
I race on odd tracks here in norcal. And the multi diff is something i have tested. but i am almost always faster with a diff or spool. I would get diffrent weight diff oils instead of the multidiff for the front, maybe just a spare set of diffs instead. I have 4 front diffs and 3 rear diffs assembled at any given time. that way at the track when required i can put in a diff with 300k, 100k, 80k and 60k. yes i use them all depending on the track and grip.

my list: 5x8x2.5 bearings for the clutch, those seem to die fast. diff oils, the 08 kit fixed the only real complaint about the NT1 07 kit. the cvd's. (the spool setup will get you there above 100k) 100k diff oil, 80k(note for use in front AND rear), 60k(front and rear), and 30k. For sure if you don't already have them a spring assortment. I use everything from 20lb t2 springs in front, mugen front purples, team magic front springs. IMO you can't have enough springs, shock oil and diff oil. Get 450 cst shock oil etc. I lot of it depends on what sort of tracks you run. I run on a lot of very technical tracks that grip varys a lot. but if you run one big euro style track. the stock setup isnt to bad at all. it will get you close. but it has to have the grip to support it. low grip tracks seem to favor T2 long springs with all sorts of crazyness to get the car to rotate how i like it. But on a high bite track its a dream with near stock setup... DK blue nt1 spring(front) seem to be the set i use most. or the 25 lb linear springs.

Patrick...

Sorry about the long wind.. just things i figured were worth sharing


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 Post subject:
PostPosted: Tue Jan 15, 2008 00:52:15 
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Location: Hampton/Va Beach USA
I concur with everything rx7ttlm said. Just this past weekend I used the 20lb (lt blue) T2 springs up front, which gave me excellent grip without a hint of traction rolling when the bite came up. I would recommend having all the pre-built diffs/oils to use as well (I also use Racers Edge 500k in the front diff). :wink:


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 Post subject:
PostPosted: Tue Jan 15, 2008 01:31:47 
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Location: Portland, OR USA
teamgp wrote:
I concur with everything rx7ttlm said. Just this past weekend I used the 20lb (lt blue) T2 springs up front, which gave me excellent grip without a hint of traction rolling when the bite came up. I would recommend having all the pre-built diffs/oils to use as well (I also use Racers Edge 500k in the front diff). :wink:


ha!! and my soon to be x girlfriend says i am never right lol


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