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Old 01-10-2014, 08:21 AM   #5191
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thanks for the response... so 2 years later and still the same issues are happening in a brand new kit (EVO), but yet it was never addressed by modifying the parts so they work well out of the box? ...They have come out with a couple new versions of the car since then? that is strange to me, but I guess it is what it is...
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Old 01-10-2014, 08:23 AM   #5192
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thanks for the response... so 2 years later and still the same issues are happening in a brand new kit (EVO), but yet it was never addressed by modifying the parts so they work well out of the box? ...They have come out with a couple new versions of the car since then? that is strange to me, but I guess it is what it is...
I've not actually seen it as loose as you mention, so something might be amiss. My diff worked fine out of the box, but the modification made it more durable for modified racing.
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Old 01-10-2014, 08:42 AM   #5193
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If you overfill the diff it will push the outdrives outwards and that will cause it to lock up. This happens even with the metal Awesomatix gears. Either remove some oil or wait a run or two for it to seep out and then the problem will go away.
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Old 01-10-2014, 09:01 AM   #5194
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ok, that makes some sense... I will definitely say that the "fill line" is ambiguous, so that definitely could be the issue on my end! again, i am used the xray instructions where it gives you a weight the diff should weigh pre-oil and post-oil... so i could always get the exact amount of oil in the diff! thanks again for the advice... im going to eventually get there with the car
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Old 01-10-2014, 09:07 AM   #5195
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I like to weigh my diffs too. When I built the diff I put it on the scales to check how much oil I put in. I found the following to be good (weights are of the big half only):

Empty weight: 6.91g
Full weight: 7.63g

Weight of oil: 0.72g

It's not a large mass so accurate scales help.
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Old 01-10-2014, 09:12 AM   #5196
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awesome, thats perfect! i have a hudy scale so that should be accurate enough to match your weights!
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Old 01-10-2014, 10:01 AM   #5197
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(Likely) The "big" gear(s) in the diff are shot. I think your toothpaste polish method + not enough shims caused this.

Gd2 doesn't have the issue when built with the noted xray parts. Unknown about vbc internals.

Mike

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So I have two of the GD1s built exactly to the manual specifications. If I hold them with gear side down and when I turn the out-drive, the other side doesn't move. However if i push the out-drive into the diff, it moves fine (although slightly notchy). Both of my diffs are exactly the same... and i have built and rebuilt them 3 times. Granted, I know I am new to this car, but the only think i can think is there needs to be some shims added somewhere, but it isn't noted anywhere in the manual that it needs to be done. I saw a few posts on Petit that talked about grinding down a small part .15mm and adding .1 shims in there, but it really baffles me that would be necessary given how precise everything else is on this car?

Anyone else experience this with the Diff? is that why they came out with a GD2?

Thanks,
Justin
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Old 01-10-2014, 12:21 PM   #5198
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Gd2 doesn't have the issue when built with the noted xray parts. Unknown about vbc internals.
Will try VBC internals in GD2 very soon, I'll report it to you
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Old 01-10-2014, 12:39 PM   #5199
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I live in the NYC area and i race on Saturday's in Horsham PA (about 1.5 hours from nyc) and on sunday's i run at Crispy critters in NJ (about 40 minutes from NYC). A few of the Awesomatix guys (me included) will be going to snowbirds in FL at the end of month.
Oh snap! S. Chocolate and Jerry at the same event for a whole week.


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Please sound out if your going to the 2014 Snowbirds. Right now I'm aware of the following folks attend (along w/ myself).
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Old 01-10-2014, 03:28 PM   #5200
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Viljami Kutvonen A700 Evo car at 2014 DHI Cup.

http://www.myrcm.ch/myrcm/main?dId[E]=13851

http://events.redrc.net/

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Old 01-10-2014, 03:50 PM   #5201
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On the A700 EVO U.S. Spec kit I know you need to buy the AM24. but does it come with the AM19's,ST21S and 1 1/8 turnbuckle's?
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Old 01-10-2014, 05:05 PM   #5202
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On the A700 EVO U.S. Spec kit I know you need to buy the AM24. but does it come with the AM19's,ST21S and 1 1/8 turnbuckle's?
A700 Evo doesn't require am24, nor does it include the am24.

USA Spec just replaces am06 parts with am06s.

All other parts are options
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Old 01-10-2014, 06:33 PM   #5203
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Viljami Kutvonen A700 Evo car at 2014 DHI Cup.
Hi Oleg-

Is Viljami running AM06S in front, and AM06 in rear? Or are those AM06 cut down (or w/o anodizing)?
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Old 01-10-2014, 07:33 PM   #5204
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Hey all and perhaps Mr. H., question... is your shop.awesomatixusa.com about the only US source for Awesomatix parts? Where else can I get parts? I would like to get a new A700L chassis and I see it's out of stock there.
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Old 01-10-2014, 07:42 PM   #5205
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Hey all and perhaps Mr. H., question... is your shop.awesomatixusa.com about the only US source for Awesomatix parts? Where else can I get parts? I would like to get a new A700L chassis and I see it's out of stock there.
Check one of his dealers as they may have one. I noticed the place in Hawaii had most the kits in stock!
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