01-15-2014, 04:08 PM | #1 |
Newbie Join Date: May 2013 Location: CNY
Posts: 14
| CVD Question
I've noticed quite a bit if play in the CVD shafts in the rear axle. I have it torn apart, but am not sure what to be looking for. Is play in the CVD normal, or is there an issue with the bearing on the main gear? Any help would be greatly appreciated. :-) Sent from my iPhone using Tapatalk |
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01-15-2014, 04:13 PM | #2 |
Newbie Join Date: May 2013 Location: CNY
Posts: 14
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After further inspection, the play is between the hex and the notch in the CVD shaft to hold the bearing in place. Is it possible that the previous owner put the wrong size bearing on it, and that is where the play is coming from? Sent from my iPhone using Tapatalk |
01-15-2014, 10:30 PM | #3 |
I wanna be Dave Join Date: Sep 2006 Location: Anchorage, Alaska
Posts: 3,099
| Re: CVD Question
Rear steer ? My non rear steer axle housing has two solid one piece axle shaft(s). Guess I'm a little confused as to the reference of "CVD Shaft" ? if there is lateral run out in the shaft... (in and out movement) a thin washer can be placed in board of the pin(s) and this would tighten up that tolerance/run out. too thick of a washer could cause bind or not allow the hex to seat fully. Last edited by TacoCrawler; 01-15-2014 at 10:36 PM. |
01-16-2014, 02:39 PM | #4 |
Newbie Join Date: May 2013 Location: CNY
Posts: 14
| Sent from my iPhone using Tapatalk |
01-16-2014, 02:40 PM | #5 |
Newbie Join Date: May 2013 Location: CNY
Posts: 14
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If you look between the hex and the bearing there a gap. The shaft is loose. Sent from my iPhone using Tapatalk |
01-16-2014, 02:48 PM | #6 |
20K Club Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
| Re: CVD Question Having some "play" in and out there is not abnormal (maybe 1/16"). If you are worried about it you can shim the bearings. However this is not needed and you won't see any adverse effects. If you are having significantly more than that then maybe you have an assembly issue.
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01-16-2014, 03:50 PM | #7 |
I wanna be Dave Join Date: Sep 2006 Location: Anchorage, Alaska
Posts: 3,099
| Re: CVD Question
those axle shafts don't look like my stock units. thought mine were a grayish color... not black. hmmm... after market something ? regardless... put a thin shim washer inboard of the hex's pin. that will remove some of the axle shaft's end play/runout. basically it is the bearing moving in and out between it's seat of the axle tube (end) and the seat of the lockout. ^ are you utilizing the stock plastic lockouts ? shimming will help... probably only one shim per side. if those shims are too thick... the play might be gone... But then it's possible a bind might occur instead. or that the hex will not seat properly on the axle's pin. there has to be a little end play of the axle shaft... but not as much as mine had when new out the box. I used traxxas shims found at my LHS tried two... but two was too thick for my circumstance. so one shim per side is likely the most it will accept. |
01-16-2014, 04:00 PM | #8 |
I wanna be Dave Join Date: Feb 2013 Location: NW Indiana
Posts: 3,196
| Re: CVD Question
my stock axles are black, those sure aint CVD axles, and the play is absolutely normal, like taco said, one shim will help, but honestly why bother?
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01-16-2014, 08:35 PM | #9 |
Newbie Join Date: May 2013 Location: CNY
Posts: 14
| Re: CVD Question
Cool, thanks for the feedback. I got my SCX10 on a trade, so I have no idea what was, or wasn't, done to it. I am happy with it, not complaining, just want to make sure the play wasn't going to be an issue. I use the truck as a truck puller once in a while, and don't want it coming apart half way down the track. LOL
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01-16-2014, 10:07 PM | #10 |
I wanna be Dave Join Date: Sep 2006 Location: Anchorage, Alaska
Posts: 3,099
| Re: CVD Question
^ was an issue for me. probably because I'm a stickler regarding maintenance and some factory tolerances are not as good as they can be. IMO. If improvement can easily be done... and it costs next to nothing to do... then why wouldn't any rc enthusiast do that ?! |
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