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Old 03-10-2005, 02:26 PM   #20536
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As you all know about crankshaft problems with new engines MEGA ZX-21 (http://www.mytsn.com/publ/publ.asp?pid=10913 )

Now the dealers are shipping new crankshafts which are totally diffferent than old ones.

Seems like there was problem not only with raw material but with design too.
New crankshafts in conparison with old ones looks like outlaw VS legal one.

I'm posting some pictures my fellow driver Aljosa took today so you can see the difference.

Left - old one, right - new one
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Last edited by lagnaf; 03-10-2005 at 02:37 PM.
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Old 03-10-2005, 02:36 PM   #20537
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Old one...
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Old 03-10-2005, 02:37 PM   #20538
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New one...
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Old 03-10-2005, 02:41 PM   #20539
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Old one 2...
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Old 03-10-2005, 02:42 PM   #20540
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New one 2 ...
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Old 03-10-2005, 02:43 PM   #20541
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Old one 3 ...
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Old 03-10-2005, 02:43 PM   #20542
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New one 3 ...
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Old 03-10-2005, 06:07 PM   #20543
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Default Re: Re: Re: Re: Re: Re: Kawahara dogbones

Quote:
Originally posted by jag
I have not seen you since the WinterNats. I hope the intrest rate is low. I am going to make you come to the track to get it. I need more driving lessons. I will let you drive the 950R.

I have a scheduling issue I am trying to workout right now. I will know soon.
I'll take a spin with the 950 I'm not sure about Naples this weekend.
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Old 03-10-2005, 07:26 PM   #20544
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Quote:
Originally posted by _cyclops_
I have those hudy steel dogbones, but i want to replace the small pins... but hudy doesn't make the tool to do so....
Yup. Hudy does not make this tool anymore. The tool that you're looking for is 106000.



For me, I just do the hammer and the anvil trick... Bang the pins through and use a nail puncher to push the pin through. Tip given by the mighty Julius.

I found it really depends on the support of the dogbone. I use an old Hudy tool, but it's no longer available I think. Another good way is using an old motor mount or alu block with a 3.5-4mm hole in it. It supports the ball of the dogbone on a larger area than the jaws of a vice.

If you want to get really hobbyistic. Take a alu block about 10mm high, drill a 3.5mm hole all the way through and then takr a countersink and make a dip in th top so the dogbone has good support. This block is placed on a good heavy vice with slightly open jaws. Hammer away!

Once the pin is flush with the ball you'll need a pin that is slightly smaller than 3mm to push it out. I think you'll find stuff like that in the hardware store. One of these pins to push headless nails into wood work well.
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Old 03-10-2005, 07:39 PM   #20545
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Quote:
Originally posted by lagnaf
As you all know about crankshaft problems with new engines MEGA ZX-21 (http://www.mytsn.com/publ/publ.asp?pid=10913 )

Now the dealers are shipping new crankshafts which are totally diffferent than old ones.

Seems like there was problem not only with raw material but with design too.
New crankshafts in conparison with old ones looks like outlaw VS legal one.

I'm posting some pictures my fellow driver Aljosa took today so you can see the difference.

Left - old one, right - new one
i just got my engine back....its awesome now....choco
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Old 03-10-2005, 07:58 PM   #20546
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Default Re: Re: Re: Re: Kawahara dogbones

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Originally posted by GlennCauley
I got them from someone who I believe is a forum member... but of course I forget his name at the moment...
Robert Carr?
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Old 03-10-2005, 08:13 PM   #20547
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Default Re: Re: Re: Re: Kawahara dogbones

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Originally posted by jag
Those look sweet. Are they aluminum? What is the cost?
I don't think they are aluminum. I would think they are expensive being Kawahara...
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Old 03-10-2005, 10:51 PM   #20548
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who distributes the nova mega engines to hobby shops. Where can they get them. Also are the sirio engines good and do they fit. I might of asked that a while ago but I forgot.
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Old 03-10-2005, 11:02 PM   #20549
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Quote:
Originally posted by IndyPhil
who distributes the nova mega engines to hobby shops. Where can they get them. Also are the sirio engines good and do they fit. I might of asked that a while ago but I forgot.
NovaMega by Serpent? I think it has been discontinued but parts support should be still done by Serpent if I'm not mistaken. Serpent is now distributing MEGA engines which is made by Picco. NovaMega is made by Novarossi.

Sirios are good for what it's worth. Especially the EVO II. They should fit in the car.

But give the MEGA a try. I keep hearing that stock out of the box, it blows out the competition and makes the playing field amongst the big boys level...
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Old 03-11-2005, 12:13 AM   #20550
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Default Servos

Guys,

What's the recommended torque and speed required for throttle and steering servos on the 710?
Is it a must to use servo, TX, RX from the same company?
What are advantages/disadvantages of mixing brands?
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