RCCrawler Forums

rocktoy · 10-07-2007, 05:16 PM

Abusive picutres are herehttp://imageevent.com/cc89iroc/1072007?n=0 hit slide show and enjoy. Sorry pics arent the best. Hard to dirve with your left hand and take pics with the right.

DUDE · 10-07-2007, 05:58 PM

Quote:

Originally Posted by rocktoy

1st thing I did when I got my R2 was take it apart and regrease it with high impact bearing grease.

have you ever done the same thing to the diff gears?? I always have, even with the stock gears before the RCP diffs I have now. I started blowing front diffs when the dig came along.

Another thing you might want to look at is, how is the condition of the diff housing itself?? I have noticed that over time the outer and inner bearing pocket were the pinion goes through the diff housing gets to be oval shaped a little from the side load created on the pinion. I have found that the diff housings only last about a year at best because of that issue.

also the pinion bearings no matter how good they are do wear out too on the pinion. If there is any side to side play at all on you pinion you need to rebuild with new bearings and housings.

rocktoy · 10-07-2007, 06:02 PM

Quote:

Originally Posted by DUDE

have you ever done the same thing to the diff gears?? I always have, even with the stock gears before the RCP diffs I have now. I started blowing front diffs when the dig came along.

Another thing you might want to look at is, how is the condition of the diff housing itself?? I have noticed that over time the outer and inner bearing pocket were the pinion goes through the diff housing gets to be oval shaped a little from the side load created on the pinion. I have found that the diff housings only last about a year at best because of that issue.

Yeah I run the same grease in my housings. I broke 1 stock pinon that was unshimmed.

Housing is perfect where all the bearings sit. Housings are actually only about 4 months old.

All those pics where with all stock drive parts except CVD's up front.

DUDE · 10-07-2007, 06:08 PM

Quote:

Originally Posted by rocktoy

Yeah I run the same grease in my housings. I broke 1 stock pinon that was unshimmed.

Housing is perfect where all the bearings sit. Housings are actually only about 4 months old.

All those pics where with all stock drive parts except CVD's up front.

Like was said earlier by Bender, the large tires do play a big part on the breakage. I ran large tires similar to yours awhiole back and would yard sale everything all the time with 30 minutes on every run.

rocktoy · 10-07-2007, 06:12 PM

So why was I breaking them with 2.2 M2k's? Since rebuilt with stock parts I ran 4 lipo's with no failure's beside's a bolt that came loose? I tore the teeth off 3 pinons and tore the spline's out of "good" parts.

See my point here? I run stock parts and rarely break. I run good parts and carry spares

Gatekeeper · 10-07-2007, 07:45 PM

RCP ring and pinion,cvd shafts,alum knuckles and RC4WD delrin housings should fix you up

rocktoy · 10-07-2007, 07:58 PM

Um broke 3 RCP pinon's and stripped 1 of the locker splines out and broke 1 CVD.

I had 1 stock pinion fail and broke 1 stock inner from a knuckle breaking ever.

JohnRobHolmes · 10-07-2007, 08:27 PM

Im gonna take a guess here. You are running an outrunner through an r2 tranny, so shock loads will be transmitted to the motor and back out to the tires moreso that any other setup. Stock gears are cheap and soft. The RCP goods are hardened, which would make them brittle to shock loads. Your problem is probably arising from your motor and tranny combo, combined with driving style. Stock parts are holding up because they give more and dont shear apart.

rocktoy · 10-07-2007, 08:34 PM

Quote:

Originally Posted by JohnRobHolmes

Im gonna take a guess here. You are running an outrunner through an r2 tranny, so shock loads will be transmitted to the motor and back out to the tires moreso that any other setup. Stock gears are cheap and soft. The RCP goods are hardened, which would make them brittle to shock loads. Your problem is probably arising from your motor and tranny combo, combined with driving style. Stock parts are holding up because they give more and dont shear apart.

That is the most logical response I have heard. Makes sense that the stock gears will give a bit before giving up. All the RCP stuff was sheared right off.

BTW I run a BM9 and r2 with a 11t pinion. Mamba 25 with start up on low.

hijack · 10-07-2007, 08:52 PM

how much weight do you have in the tires? i was having the same problem with one of my rigs , so i changed the tires, the new tires weighed half as much and that fixed my problem

rocktoy · 10-07-2007, 08:54 PM

4 Oz. in fronts only. No other weight added.

Racer4Life · 10-07-2007, 09:10 PM

Quote:

Originally Posted by Gatekeeper

RCP ring and pinion,cvd shafts,alum knuckles and RC4WD delrin housings should fix you up

That is funny. The whole reason this thread is here is because of most of those parts!

I have the CVD's and RCP R&P. I love my CVD's and have yet to try the R&P's. I'll be runnning 2.2 Jordon's on mine. Hope they hold up, cause I drive like a Mad Man!

rocktoy · 10-07-2007, 09:13 PM

Some people dont read before they post

Fishmaxx · 10-07-2007, 09:40 PM

Quote:

Originally Posted by JohnRobHolmes
Im gonna take a guess here. You are running an outrunner through an r2 tranny, so shock loads will be transmitted to the motor and back out to the tires moreso that any other setup. Stock gears are cheap and soft. The RCP goods are hardened, which would make them brittle to shock loads. Your problem is probably arising from your motor and tranny combo, combined with driving style. Stock parts are holding up because they give more and dont shear apart.

Quote:

Originally Posted by rocktoy

That is the most logical response I have heard. Makes sense that the stock gears will give a bit before giving up. All the RCP stuff was sheared right off.

I agree.........wonder why it took the "Electronics' guy to finally figure it out;)

lunchbox · 10-07-2007, 10:07 PM

Cuz JRH is just too freaking smart. Makes perfect sense though.

RXcrawler · 10-07-2007, 10:18 PM

I'm running the R2d with a 55T, but the problem I'm having is the soft metal the pinion shaft is made of can't handle the load of using front dig.

rocktoy · 10-07-2007, 10:48 PM

I havent done a dig in forever. I only did a few actual digs before I broke the a CVD. I had a 55t then as well. I dont have mine even hooked up now. I locked it into 4wd. The biggest thing I noticed was on high traction surface thats really rough the dig will put a ton of stress on everything. My 1-1 rig is the same way.

You need common sense when using it. Loose dirt and smooth rock its great. All twisted up in a pile of rubble BOOM. Another thing which add's to the stress is 1-1 rigs usually unlock the rear axle then disco and use cutting brakes. You only have one tire planted then instead of both pulling back on you. Its much more effient that way but not easily attainable on a RC.

I mostly used my dig to decend stuff. Works awesome to drop over ledge's and come down really steep stuff.

I have been thinking of hooking it back up though. All i really need to do it toss on a servo. Maybe this week I'll hook it back up and do some playing. Wonder how the stock R+P will liek the brushless then

RXcrawler · 10-07-2007, 10:57 PM

What drive shafts are you using. I had pede shafts on the front with the stock diffs. May go back to them easier to replace a drive shaft.

rocktoy · 10-07-2007, 11:08 PM

T-maxx 2.5 shafts barely trimmed them and they fit right in. I did bore the stock pinon so I could use the stock type pin for the shafts. The shaft ends work perfect with RCP's piniona nd the r2 trans with hole's.

Pede's popped to easy once they wear a bit. It helps if you sleeve the joint end with brass tube so the ends dont spread open but then twist up after a bit. Eventually they popout then cause the plastic is just worn out. I actually had my pede metal yoke's pretty well worn out when I moved to Maxx shafts.

Natedog · 10-08-2007, 04:02 PM

Quote:

Originally Posted by BENDER

I can tell part of your problem is the tires you're running, they are too big for TLT axles. How much does your rig weigh? If you're running dig with a heavy rig, you'll break more too.

X2. I have about one year's crawling on my stock ring and pinions shimmed with Moab 2.2s, 45T lathe, 7.2 nimh, stampede tranny and I'm not easy on it. I've broken several stock axle shafts and that's about it. I run Stampede tranny with the old style Traxxas slipper and make sure not to bind it up too hard.

EDIT: FYI I'm using Amsoil synthetic 2000 Racing grease in both ring and pinion setups...has worked great in my 1:1 u-joints and works great here too.

10-07-2007, 06:12 PM	#45
rocktoy Quarry Creeper Join Date: Sep 2005 Location: on the rocks Posts: 477	So why was I breaking them with 2.2 M2k's? Since rebuilt with stock parts I ran 4 lipo's with no failure's beside's a bolt that came loose? I tore the teeth off 3 pinons and tore the spline's out of "good" parts. See my point here? I run stock parts and rarely break. I run good parts and carry spares Last edited by rocktoy; 10-07-2007 at 06:15 PM.

10-07-2007, 05:16 PM	#41
rocktoy Quarry Creeper Join Date: Sep 2005 Location: on the rocks Posts: 477	Abusive picutres are herehttp://imageevent.com/cc89iroc/1072007?n=0 hit slide show and enjoy. Sorry pics arent the best. Hard to dirve with your left hand and take pics with the right.

10-07-2007, 07:45 PM	#46
Gatekeeper RCC Addict Join Date: Feb 2007 Location: LRC Posts: 1,600	RCP ring and pinion,cvd shafts,alum knuckles and RC4WD delrin housings should fix you up

10-07-2007, 07:58 PM	#47
rocktoy Quarry Creeper Join Date: Sep 2005 Location: on the rocks Posts: 477	Um broke 3 RCP pinon's and stripped 1 of the locker splines out and broke 1 CVD. I had 1 stock pinion fail and broke 1 stock inner from a knuckle breaking ever.

10-07-2007, 08:27 PM	#48
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Im gonna take a guess here. You are running an outrunner through an r2 tranny, so shock loads will be transmitted to the motor and back out to the tires moreso that any other setup. Stock gears are cheap and soft. The RCP goods are hardened, which would make them brittle to shock loads. Your problem is probably arising from your motor and tranny combo, combined with driving style. Stock parts are holding up because they give more and dont shear apart.

10-07-2007, 08:52 PM	#50
hijack Pebble Pounder Join Date: Sep 2006 Location: keller Posts: 139	how much weight do you have in the tires? i was having the same problem with one of my rigs , so i changed the tires, the new tires weighed half as much and that fixed my problem

10-07-2007, 08:54 PM	#51
rocktoy Quarry Creeper Join Date: Sep 2005 Location: on the rocks Posts: 477	4 Oz. in fronts only. No other weight added.

10-07-2007, 09:13 PM	#53
rocktoy Quarry Creeper Join Date: Sep 2005 Location: on the rocks Posts: 477	Some people dont read before they post

10-07-2007, 10:07 PM	#55
lunchbox Quarry Creeper Join Date: Feb 2007 Location: Fresno Posts: 472	Cuz JRH is just too freaking smart. Makes perfect sense though.

10-07-2007, 10:18 PM	#56
RXcrawler Moderator Join Date: Apr 2004 Location: In my head Posts: 2,744	I'm running the R2d with a 55T, but the problem I'm having is the soft metal the pinion shaft is made of can't handle the load of using front dig.

10-07-2007, 10:48 PM	#57
rocktoy Quarry Creeper Join Date: Sep 2005 Location: on the rocks Posts: 477	I havent done a dig in forever. I only did a few actual digs before I broke the a CVD. I had a 55t then as well. I dont have mine even hooked up now. I locked it into 4wd. The biggest thing I noticed was on high traction surface thats really rough the dig will put a ton of stress on everything. My 1-1 rig is the same way. You need common sense when using it. Loose dirt and smooth rock its great. All twisted up in a pile of rubble BOOM. Another thing which add's to the stress is 1-1 rigs usually unlock the rear axle then disco and use cutting brakes. You only have one tire planted then instead of both pulling back on you. Its much more effient that way but not easily attainable on a RC. I mostly used my dig to decend stuff. Works awesome to drop over ledge's and come down really steep stuff. I have been thinking of hooking it back up though. All i really need to do it toss on a servo. Maybe this week I'll hook it back up and do some playing. Wonder how the stock R+P will liek the brushless then

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10-07-2007, 10:57 PM	#58
RXcrawler Moderator Join Date: Apr 2004 Location: In my head Posts: 2,744	What drive shafts are you using. I had pede shafts on the front with the stock diffs. May go back to them easier to replace a drive shaft.

10-07-2007, 11:08 PM	#59
rocktoy Quarry Creeper Join Date: Sep 2005 Location: on the rocks Posts: 477	T-maxx 2.5 shafts barely trimmed them and they fit right in. I did bore the stock pinon so I could use the stock type pin for the shafts. The shaft ends work perfect with RCP's piniona nd the r2 trans with hole's. Pede's popped to easy once they wear a bit. It helps if you sleeve the joint end with brass tube so the ends dont spread open but then twist up after a bit. Eventually they popout then cause the plastic is just worn out. I actually had my pede metal yoke's pretty well worn out when I moved to Maxx shafts.

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