bevel gear oblivion!

[gutsploder]

Pro 4 with mmp. 2 and 3 cell. Drag brake set at 75%. RR tranny. Mip drivelines. Beef tubes. HR lockers. Axial cvds. Axial hardened bevel gears.
This wraith is eating bevel gear sets at a rate of one set per month. It also wallows out lockers and rounds the cvd drive ends to create tons of slop on the front. This is getting expensive. Is there a more bulletproof bevel gear/locker/cvd combo i should be running? It eats both front and back bevel sets. Don't really care about cost if it works. Anything would be cheaper than this. Thanks.

[dna4engr]

When I read the title of your thread I thought it'd be just the pinion bearings causing it. However the multitude of issues your having is interesting.

First thing is start with is a pair of dlux wraith housings. These have a huge inner bearing to handle the big power. This should save the pinion and bevel. As far as the other components. I have to ask if you think the gear mesh is good and you have it shimmed properly?

As always some pics of the wear and damage would be helpful.

Dna

[Lentsnh2012]

Have you tried shimming the pinion or putting bushings on the pinion?

If you want a no slop locker, Locked Up RC is the best you can buy.

[gutsploder]

Originally Posted by dna4engr

When I read the title of your thread I thought it'd be just the pinion bearings causing it. However the multitude of issues your having is interesting.

First thing is start with is a pair of dlux wraith housings. These have a huge inner bearing to handle the big power. This should save the pinion and bevel. As far as the other components. I have to ask if you think the gear mesh is good and you have it shimmed properly?

As always some pics of the wear and damage would be helpful.

Dna

Dlux wraith housings? Never heard of them.

[gutsploder]

Originally Posted by Lentsnh2012

Have you tried shimming the pinion or putting bushings on the pinion?

If you want a no slop locker, Locked Up RC is the best you can buy.

Locked up RC. Thanks. These will work with axial cvds?

[gutsploder]

Originally Posted by dna4engr

When I read the title of your thread I thought it'd be just the pinion bearings causing it. However the multitude of issues your having is interesting.

First thing is start with is a pair of dlux wraith housings. These have a huge inner bearing to handle the big power. This should save the pinion and bevel. As far as the other components. I have to ask if you think the gear mesh is good and you have it shimmed properly?

As always some pics of the wear and damage would be helpful.

Dna

I haven't had a chance to tear into them yet. So no pics. Sorry. And i have never shimmed anything inside.

[the DMG]

pro 4 HD 3/4 cell been running this for some time now - no shimming needed.
ring & pinion still looks new !

this should take of your problems

http://www.rccrawler.com/forum/axles...aring-mod.html

[allanon1965]

with bigger power comes more attention to details like proper shimming and heavier duty/larger bearings etc...I would be curious as to the wear pattern on the gear teeth..maybe they are not engaging far enough into each other..

[gutsploder]

Originally Posted by the DMG

pro 4 HD 3/4 cell been running this for some time now - no shimming needed.
ring & pinion still looks new !

this should take of your problems

http://www.rccrawler.com/forum/axles...aring-mod.html

Should i run over / under drive ratios? Or stick with stock ratio?

[gutsploder]

Originally Posted by the DMG

pro 4 HD 3/4 cell been running this for some time now - no shimming needed.
ring & pinion still looks new !

this should take of your problems

http://www.rccrawler.com/forum/axles...aring-mod.html

And are you running axial hardened gears or a different brand?

[Natedog]

Originally Posted by dna4engr

When I read the title of your thread I thought it'd be just the pinion bearings causing it. However the multitude of issues your having is interesting.

First thing is start with is a pair of dlux wraith housings. These have a huge inner bearing to handle the big power. This should save the pinion and bevel. As far as the other components. I have to ask if you think the gear mesh is good and you have it shimmed properly?

As always some pics of the wear and damage would be helpful.

Dna

x2

Originally Posted by Lentsnh2012

Have you tried shimming the pinion or putting bushings on the pinion?

If you want a no slop locker, Locked Up RC is the best you can buy.

x2...and Locked Up RC or I've had good luck with Hot Racing hardened steel lockers: Hot Racing Axial SCX10 AX10 Wraith Unibody SHD Differential Locker

Originally Posted by gutsploder

Locked up RC. Thanks. These will work with axial cvds?

Yes.

Originally Posted by the DMG

pro 4 HD 3/4 cell been running this for some time now - no shimming needed.
ring & pinion still looks new !

this should take of your problems

http://www.rccrawler.com/forum/axles...aring-mod.html

DLux makes good stuff.

Originally Posted by allanon1965

with bigger power comes more attention to details like proper shimming and heavier duty/larger bearings etc...I would be curious as to the wear pattern on the gear teeth..maybe they are not engaging far enough into each other..

Definitely.

Originally Posted by gutsploder

Should i run over / under drive ratios? Or stick with stock ratio?

Erik DLux has a thread about this, stock or UD looks to be best tooth engagement and use the HD version of gears.

[Lentsnh2012]

Originally Posted by gutsploder

Locked up RC. Thanks. These will work with axial cvds?

Yes they will. Locked Up RC recommends that you install the axial axle shafts into the locker outside of the vehicle before final installation. It's that tight of a tolerance.

[Lentsnh2012]

Originally Posted by gutsploder

Dlux wraith housings? Never heard of them.

Erik drills out the bearing pockets to accommodate a much larger bearing that can handle the power and torque. Same goes for his knuckles.

Check out his vendor thread on them in the vendor section.

http://www.rccrawler.com/forum/axles...aring-mod.html

[Natedog]

Originally Posted by Lentsnh2012

Erik drills out the bearing pockets to accommodate a much larger bearing that can handle the power and torque. Same goes for his knuckles.

Check out his vendor thread on them in the vendor section.

http://www.rccrawler.com/forum/axles...aring-mod.html

Yes and he makes a sweet carbon fiber AR60 axle truss with lcg servo mount! DLUX FAB!

[Jethrobodean]

Does anyone have a how to link on shimming? (Mainly what pieces people are using to do it, I get why & how, just not sure where to get the shims, short of whittling them out of bulk shim stock)

[Calderwood]

Originally Posted by Jethrobodean

Does anyone have a how to link on shimming? (Mainly what pieces people are using to do it, I get why & how, just not sure where to get the shims, short of whittling them out of bulk shim stock)

I use nitro clutch shims. Any commonly available shim of the correct size will work though. Shimming and replacing the inner pinion bearing with a bushing makes a huge difference in strength.

[Jethrobodean]

I assume everyone's just shimming the pinion depth? Seems some mild machining would be required for carrier / locker side shimming.

Thanks for link, got me pointed in the right direction.

[Lentsnh2012]

Originally Posted by Jethrobodean

I assume everyone's just shimming the pinion depth? Seems some mild machining would be required for carrier / locker side shimming.

Thanks for link, got me pointed in the right direction.

Correct. If you have some wear on your current gear set, you'll see the wear pattern on the ring gear. Install one shim at a time to set the pinion gear depth so that there is more tooth engagement.

You shouldn't need to modify the spool; you wont/shouldn't be shimming that far in. Probably 1-3 0.1mm shims should get you closer to a better wear pattern.

[meatmonkey]

I'm kinda OCD, so I will spend quite a bit of time finding the right combination of pinion depth and carrier offset that results in the perfect mesh.

Ideally you want to reduce the gears backlash to as little as possible, but not all the way to zero.

The pinion shaft requires 5x7x.1mm shims. HPI part# Z852

The carrier bearings can have 10x12x.1 shims (Durango part# TD310033) placed between the carrier bearings and the ring gear or diff housings without any machine work. I don't like the stock paper gasket, so I substitute an extra shim for it.

I've found that there is quite a bit of tolerance on the width of the carrier bearing mounting bosses in the plastic Axial housings, requiring anywhere from one to four shims to be added.

The old Blitz rear hub carriers have small, 1.45mm wide IIRC, spacer that works perfectly as a solid pinion spacer between the pinion bearings. If your crafty, and can find some thin-walled aluminum/steel tube, you could make your own. I just happen to have lots of Blitz parts. NOTE: the spacer included with the newer blitz hubs that take the 5x11 bearings comes with a thicker spacer that won't work.

Once you have your gear mesh/pinion depth set you add shims outside the housing before installing the driveshaft to remove all in/out play. Taking out the last bit of play here helps force the pinion bearings to share the load.

[WAFFLE]

Originally Posted by gutsploder

Pro 4 with mmp. 2 and 3 cell. Drag brake set at 75%. RR tranny. Mip drivelines. Beef tubes. HR lockers. Axial cvds. Axial hardened bevel gears.
This wraith is eating bevel gear sets at a rate of one set per month. It also wallows out lockers and rounds the cvd drive ends to create tons of slop on the front. This is getting expensive. Is there a more bulletproof bevel gear/locker/cvd combo i should be running? It eats both front and back bevel sets. Don't really care about cost if it works. Anything would be cheaper than this. Thanks.

Are your wheels weighted?