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12-06-2023, 07:26 PM | #1 |
Newbie Join Date: Oct 2014 Location: NC
Posts: 49
| Phoenix play in transmission
Hi all, I’ve been driving my Phoenix lately and noticed there is quite a bit of play in the transmission. When driving over obstacles the truck will hesitate after the front or back wheels clear them. Like the transmission and motor have to catch up to the wheels, if that makes any sense. This makes scale driving not so scale looking. When the truck is off and I push it back and forth by hand, the wheels roll a fair bit before the transmission and motor catches. It is more pronounced than on my SCX10 II, which seems tight by comparison. Is this just a normal thing with the vfd2 transmission? FYI, I don’t have any overdrive or dig servos installed and the overdrive lever is set to the smaller ratio. Thanks! Sent from my iPhone using Tapatalk |
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12-06-2023, 07:52 PM | #2 |
Pebble Pounder Join Date: Jan 2022 Location: Longmont
Posts: 199
| Re: Phoenix play in transmission
It sounds similar to mine, it's a combination of the backlash between all the great in the transmission, the play in the driveshafts (usually a lot) the axles both in ring and pinion (portals of equipt and the axle shafts to the lockers. As you drive more and more it's gets a bit more. My most used and best on phoenix has about 1/3 to 1/2 tire rotation of play in everything.
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12-07-2023, 06:20 AM | #3 |
Newbie Join Date: Oct 2014 Location: NC
Posts: 49
| Re: Phoenix play in transmission
Thanks for the reply, so it’s normal then. That’s a little surprising because I noticed how well the ring and pinion fit together when building the axles. No play, no shimming needed and they turn very smooth. I assumed the trans would be the same and it all went together very nicely. The axles and driveshafts seem fine, and most of the play is at the trans outputs. I wonder how the regular VFD transmission is in comparison here. Seems like the switching mechanisms could contribute to this. I don’t really have a need for dig or overdrive switching. It’s a stupid concern I know. I was going to put a hard body on the chassis for more realism, and It’s such a good layout to use for interiors with the motor/trans position. My bad driving probably doesn’t help, lol. It is what it is I guess. . Sent from my iPhone using Tapatalk |
12-07-2023, 10:47 AM | #4 |
Pebble Pounder Join Date: Jan 2022 Location: Longmont
Posts: 199
| Re: Phoenix play in transmission
Its a valid concern, I know on all 3 of mine the rear output has a good amount of rotation and I think its a combination of all the gears and like you said the OD and Dig gears, shafts, and selectors. The Phoenix is a really good platform for hardbody builds, I have done 4 of them and it will likely be my go to platform for them for the considerable future. |
12-07-2023, 04:31 PM | #5 |
Newbie Join Date: Oct 2014 Location: NC
Posts: 49
| Re: Phoenix play in transmission
Cool, thanks! Good to know. I’d like to try the non-selectable trans someday just to see if it’s different. Otherwise the Phoenix has been great. Do you have any hard body build threads here? Interested to see how you mounted stuff. Sent from my iPhone using Tapatalk |
12-07-2023, 05:10 PM | #6 | |
Pebble Pounder Join Date: Jan 2022 Location: Longmont
Posts: 199
| Re: Phoenix play in transmission Quote:
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12-07-2023, 06:01 PM | #7 |
Newbie Join Date: Oct 2014 Location: NC
Posts: 49
| Re: Phoenix play in transmission
Thanks! I’ll check out that thread. I was thinking of putting my XJ on the Vanquish. It’s on an SCX10-II now. Not sure yet. Sent from my iPhone using Tapatalk |
12-08-2023, 08:46 AM | #8 | |
Pebble Pounder Join Date: Jan 2022 Location: Longmont
Posts: 199
| Re: Phoenix play in transmission Quote:
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12-09-2023, 09:29 AM | #9 |
Newbie Join Date: Oct 2014 Location: NC
Posts: 49
| Re: Phoenix play in transmission
Looks great! I’d like to see your hinge mount, that’s a great idea. I designed and printed a rear hinge mount for my SCX10-II but it won’t fit the vanquish chassis. Did you remove the stock inner fenders? After test fitting the Cherokee body I can’t get it low enough in the front. Sent from my iPhone using Tapatalk |
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