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Official HPI MT2 Thread

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Old 01-06-2007 | 01:15 PM
  #12001  
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Default RE: Official HPI MT2 Thread

iv had that problem before i just put thread lock on the screw and it sorted it out
Old 01-06-2007 | 01:16 PM
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Default RE: Official HPI MT2 Thread

are you sure the clutch bell is locking up? [&:]. are you sure its not your engine hydro-locking
Old 01-06-2007 | 01:18 PM
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Default RE: Official HPI MT2 Thread

is it just me/stadium truck freak.djheptic.arapoda are we the only people form the uk in this forum ????????????????????
Old 01-06-2007 | 01:29 PM
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Default RE: Official HPI MT2 Thread

arapoda looking at the picture is that a regular washer on the clutchbell. im sure ur problem is that and u need this to let the bearing slide smothly http://www2.towerhobbies.com/cgi-bin...45&FVPROFIL=++
Old 01-06-2007 | 01:35 PM
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Default RE: Official HPI MT2 Thread

Old 01-06-2007 | 02:24 PM
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Default RE: Official HPI MT2 Thread

what do you guys think of a 17-47 gear ratio set up?

17 tooth clutch bell and 47 tooth spur?
Old 01-06-2007 | 02:25 PM
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Default RE: Official HPI MT2 Thread

what shall i get to make my mt2 strong = drive train what will i need to make it run a nosram rs18 engine with out it breaking
Old 01-06-2007 | 02:40 PM
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Default RE: Official HPI MT2 Thread

ORIGINAL: stadium truck freak

what shall i get to make my mt2 strong = drive train what will i need to make it run a nosram rs18 engine with out it breaking
HD Differentials.
Heavy Duty Drive Cups
Old 01-06-2007 | 02:48 PM
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Default RE: Official HPI MT2 Thread

is that all i need yeah ?
Old 01-06-2007 | 02:52 PM
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Default RE: Official HPI MT2 Thread

should be. unless you get the os.18tz. just upgrade your diffs to the HD ones. will cost around £50
Old 01-06-2007 | 03:00 PM
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Default RE: Official HPI MT2 Thread

how much would it cost up upgrade the final gears front+rear
Old 01-06-2007 | 03:05 PM
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Default RE: Official HPI MT2 Thread

£25-£30. just get the set.
Old 01-06-2007 | 03:15 PM
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Default RE: Official HPI MT2 Thread


ORIGINAL: arapoda

Bare with me on this problem, but it's a continuation on my clutch bell saga that some of you are aware of.

Okay, so after buying a new clutch bell, attaching it and sorting out the mesh with the spur gear, I now face a new problem. Today I went to give the car a test run, so I pulled the pull start but the clutch bell gear locked up.

Now, a few days ago I realised that if the screw on the clutch bell is tightened too much, the clutch bell cannot spin. Because of this, I leave the screw slightly slack to allow it to spin. Today, much to my frustration, I found that as the clutch bell gear meshes with the spur gear (and when the pull start is tugged) that the screw tightens itself into the thread (thus locking up the gear). I'm baffled as to how to find a way around this?

I've got thread lock, but surely this must only work for screws that are tightly threaded and not slack screws?

Here's a picture of the afore mentioned gear and the problem screw in question:



Any suggestions folks?

I'll be offline for a few hours, but I'll check back later.
Get rid of the washer that is your problem. That washer is for the original CB with the needle bearings. When you tighten the screw it pressures the washer up against the CB causing it to lock it in place. Also it is very important to put blue thread lock on the screw holding in the CB. You should be able to tighten that screw all the way in and the CB should be able to spin freely. If it does not!!! remove the washer on the inside of the CB as well. Those washers are very thick, what you need are shims to space the CB properly not washers. Get the Ofna CB kit listed below.

http://www2.towerhobbies.com/cgi-bin...?&I=LXJKN3&P=7

http://www2.towerhobbies.com/cgi-bin...?&I=LXNXK4&P=7
Old 01-06-2007 | 03:21 PM
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Default RE: Official HPI MT2 Thread

thats what i said. i think the hpi cone washer would be good
Old 01-06-2007 | 04:31 PM
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Default RE: Official HPI MT2 Thread

yeah i would have to say that you should give the purple hpi cone washer a try
Old 01-06-2007 | 06:00 PM
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Default RE: Official HPI MT2 Thread

Hey guys, thanks a lot for the info and help.

Thanks for pointing out the washer, rapsuck 07, I'll purchase one of those as soon as possible.
Old 01-06-2007 | 06:05 PM
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Default RE: Official HPI MT2 Thread


ORIGINAL: rapsucks_07

Z541

The screw that goes into the washer - Z541 - How do I go about finding that particular screw on a model website?
Old 01-06-2007 | 06:07 PM
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Default RE: Official HPI MT2 Thread

ORIGINAL: djheptic

ORIGINAL: Nitr0-is-Deadly

2--do they make a heavy duty spur?
Savage Steel Spur Gear

Yes they do and it Will Fit The MT2/ss
Here is what you need
HPI Part #86806 Steel Spur Gear Set 47T (can pick your own T)
HPI Part #A988 Heavy-Duty Clutch Bell 13T (can pick your own T)
1 #10 Flat Washer

Put together as per instuctions
Replace Part #72236 with 1 #10 Flat Washer
Do not use Part #B071



Remember to use only a HD Clutch bell or one of the racing ones
Remember to set the slipper




No offence but you better go to HPI web site and you will see the only CB they recommend to use with a steel spur is the Race CB as it is the only one that is hardened.
Old 01-06-2007 | 06:13 PM
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Default RE: Official HPI MT2 Thread


ORIGINAL: 46u

No offence but you better go to HPI web site and you will see the only CB they recommend to use with a steel spur is the Race CB as it is the only one that is hardened.
i said he will need a hardened clutch bell. that picture is just an example. .
Old 01-06-2007 | 06:29 PM
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Default RE: Official HPI MT2 Thread

ORIGINAL: arapoda

The screw that goes into the washer - Z541 - How do I go about finding that particular screw on a model website?
cone washers - [link]http://www.jespares.com/catalog/product_info.php?cPath=322&products_id=2099[/link]
to find the screw you want on a model website you just type in its size so it would be - cap head screw - m3x6mm or you could just browse through their screws
Old 01-06-2007 | 07:19 PM
  #12021  
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Default RE: Official HPI MT2 Thread

Would you recommend this?

http://www.jespares.com/catalog/prod...products_id=43
Old 01-06-2007 | 07:44 PM
  #12022  
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Default RE: Official HPI MT2 Thread

ORIGINAL: arapoda

Would you recommend this?

http://www.jespares.com/catalog/prod...products_id=43
No as stainless is very strong but brittle. Better for a screw to bend then break where were you still have to get half of it out. All so do some research on stainless screwed to aluminum and what sort of chemical reaction you have.
Old 01-06-2007 | 07:48 PM
  #12023  
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Default RE: Official HPI MT2 Thread

This is off HPI web site and as you see it is the only HPI CB to run with a steel spur.

These Racing Clutch Bells from HPI Racing are made from high strength machined steel and hardened for maximum durability. These Clutch Bells can be used with the stock Savage Spur Gears, and they are a mandatory upgrade when using HPI Steel Spur Gears. Machined holes help keep the weight down for quick acceleration, and the holes also help cool the clutch shoes for consistent performance. Each gear is stamped with the number of teeth for easy identification. Available in 13T, 14T, 15T, 16T, 17T, 18T, 19T and 20T sizes for a wide variety of gear ratios.
Old 01-06-2007 | 07:57 PM
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Default RE: Official HPI MT2 Thread


ORIGINAL: 46u

ORIGINAL: arapoda

Would you recommend this?

http://www.jespares.com/catalog/prod...products_id=43
No as stainless is very strong but brittle. Better for a screw to bend then break where were you still have to get half of it out. All so do some research on stainless screwed to aluminum and what sort of chemical reaction you have.
Reaction? I didn't think there would be a reaction?
Old 01-06-2007 | 07:58 PM
  #12025  
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Default RE: Official HPI MT2 Thread

i know you need a race clutch bell for a steel spur. i was just using that picture as an example for nitro-is-deadly. but i did state in the text he would need a HD race clutch bell. i personally would not run a steel spur gear in my mt2. i have not had a problem with my plastic spur gear (knock on wood) and its around 1 and a half years old now.


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