CVD Trial

[RusT808]

I didn't want to hijack Will's thread so here it is.
First I want to say I got this idea from another enthusiast on another forum. I used the HPI Blitz cvd, cut the dog bone part off and brazed some "meat" on the end to thicken it up(because that end tapered down towards the dog bone). After I had enough material built up, The end was ground down to match the original WK axle end.

Here is one problem I still need to resolve, the Blitz axle is thinner than the WK one. I need to find a bearing to fit the axle. Was gonna use some ShoeGoo to fill the gap for a temporary fix.

Here you can see the pivoting point matches with the knuckle.

Pic of WK axle next to the Blitz cvd (cut and modified end)

I know it's not the best looking but this is working so far.

 

[william g]

Nah, no issue with hijacking.

you'd be better off using the long section from another truck and just blitz axle shafts.

Reason I say this is braze is soft enough over time it'll wear and finding a bearing and then fitting it past your beefed up brazed end it'll fit loose on the shaft?

Over on RCC a few have used the blitz axle and a losi shaft, search the WK forum there for CVD and you'll find it.

 

[RusT808]

Nah, no issue with hijacking.

you'd be better off using the long section from another truck and just blitz axle shafts.

Reason I say this is braze is soft enough over time it'll wear and finding a bearing and then fitting it past your beefed up brazed end it'll fit loose on the shaft?

Over on RCC a few have used the blitz axle and a losi shaft, search the WK forum there for CVD and you'll find it.

My LHS didn't have any shafts that fit, ball on the dog bone was too large.
I'm crossing my fingers on the brazing holding up with the open diff and "small" tires. Clod tires would most likely tear this set up apart.
I seen that RCC thread a while back but, forgot what parts they used.

Thanks for the insight, Will.

Russ

 

[JKRacing37]

Nice fabrication Russ, and thanks a ton for posting the pics and info! Please keep us updated on how this works out over the long term.

 

[william g]

I seen that RCC thread a while back but, forgot what parts they used.

Thanks for the insight, Will.

Russ

here it is http://www.rccrawler.com/forum/showthread.php?t=239652 some losi lst parts on one

deeper in there is more detailed pics
note;
NOTHING is a direct bolt on item.

So if you ever see RCP CVD's grab them :wnk

 

[RusT808]

I guess when my rigged up cvd's break, I'll go the losi route. Thanks for looking out, Will. :tmb

 

[kevinatfms]

anyone plopped down for the integy cvd's?

 

[Supreme Reign]

anyone plopped down for the integy cvd's?

Don't waste your time. They're useless unless you buy their ring and pinion. The end of the shaft is also hollow, so you can't just grind it down to fit into a stock ring gear assembly.

 

[bpare207]

Could you weld the pieces together rather than braze em? You'd prolly have an awful lot of grinding to do afterwards but I'd think it would be a bit more solid than brazing.

 

[RusT808]

Yesterday I purposely tried to break the cvd's, hard starts on cement/asphalt, throttling hard and turning (and flipping :tong ), just haven't jumped anything like a 1080 ramp. Held up really well. Took it apart and the brazed ends were still square and sharp, no sign of wear/damage. I think these will last a while. If not, there are a few options left to try. But I think I've been breaking them on jumps so, the real test would be at the next race.

 

[william g]

what did you end up doing for a bearing?
I hope it works out, would be a shame not too. So lame we can't get them anymore when the truck is still so popular and in production.

 

[RusT808]

what did you end up doing for a bearing?
I hope it works out, would be a shame not too. So lame we can't get them anymore when the truck is still so popular and in production.

Haha, oh man. I forgot about that issue and just ran the truck but, no problems except for one side bearing sliding out of the housing(didn't even notice it while bashing). I need to remember to shoo-goo the space just to pick up the slack between the axle and bearing.
Just ran a 3250mah lipo through it at the park and it has survived another run (still not ramp jumping). Forgot the shoo-goo again. :bang
Maybe I'm lucky with this mod. You know what they say, "Better to be lucky than good".

 

[william g]

You know what they say, "Better to be lucky than good".

You and I might be related :laugh

Maybe get some styrene-nylon-delrin and make your own axle bushing sleeve mechanism for it to ride on? There isn't that much movement/force on the shaft, it's the torsional load that is high.

 

[MonsterBrit]

I presume if you took an OD for the shaft and the original bearing you might be able to find a suitable bearing with a narrower ID for that shaft.

It looks like a good mod, I'll be interested to see if it holds up long term.

 

[RusT808]

You and I might be related :laugh

Maybe get some styrene-nylon-delrin and make your own axle bushing sleeve mechanism for it to ride on? There isn't that much movement/force on the shaft, it's the torsional load that is high.

I never thought about styrene, good call.

I presume if you took an OD for the shaft and the original bearing you might be able to find a suitable bearing with a narrower ID for that shaft.

It looks like a good mod, I'll be interested to see if it holds up long term.

I looked at my LHS, they didn't have anything
I'm hoping it holds up, too.