R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Reply
 
Thread Tools Search this Thread
Old 02-27-2008, 02:33 PM   #23311
Tech Adept
 
Join Date: Dec 2007
Posts: 202
Default

Quote:
Originally Posted by Serpent-Dan View Post
A ball diff not set properly could be the cause, unless the car is tweaked very very bad cause when I first drove my 720 it was tweaked sum and didn't do any of the things Anthony's car is doing. Place the car on a flat surface and pick it up from rear and see how much more one side comes up from the other and do the same in the front then judge how tweaked it is. If it's alot then really work on fixing it also check to see that the side belt is engaging because this sound like more than tweak it sounds like something in the drivetrain.
What's a lot?

Before any adjustment (all shock collars set the same for ride heigth) one rear wheel lifts at most about a 1/16 of inch before the other side. I can adjust it out to where both wheels lift equally with several turns of the opposite front shock or visa versa.

I tend to agree with you about it being something more than tweak. I'm going to check all the pulleys and make sure they are the right teeth for where they are. The side belt is definitely engaging because I do get power to the front wheels. I'm just not sure if its equally between the two front wheels. That's why I want to put back in the solid axle. That should correct the on power problems. I know its not the rear diff, it's a gear diff and is in very good condition and feels real good.

I want to rule out shocks and tweak tonight, I hope.
AnthonyN is offline   Reply With Quote
Old 02-27-2008, 02:41 PM   #23312
Tech Elite
 
Serpent-Dan's Avatar
 
Join Date: Dec 2007
Location: Florida
Posts: 2,847
Trader Rating: 16 (100%+)
Default

By alot I mean more than what you said, the reason I feel it could be the drivetrain is cause I used to run a 2wd S-impact with a rear ball diff and if it was off in setting the car let you know. If you see most set-ups in touring cars us e either a front gear-diff or solid no one really uses ball diffs because of the slip it has and the time it takes to get right. Hope this helps anything you need to ask feel free.
__________________
Inf1nity CM Beat1 Racing
Serpent-Dan is offline   Reply With Quote
Old 02-28-2008, 06:11 AM   #23313
Tech Adept
 
Join Date: Dec 2007
Posts: 202
Default

Quote:
Originally Posted by Serpent-Dan View Post
By alot I mean more than what you said, the reason I feel it could be the drivetrain is cause I used to run a 2wd S-impact with a rear ball diff and if it was off in setting the car let you know. If you see most set-ups in touring cars us e either a front gear-diff or solid no one really uses ball diffs because of the slip it has and the time it takes to get right. Hope this helps anything you need to ask feel free.
Actually I took the ball diff out last night and re-installed the one way axle and locked it solid. Haven't tried it yet though.

I noticed that the ball diff wasn't put together correctly. The external collar was on backwards therefore only restricting one side. I also tore the diff apart and put just a touch of diff grease on the balls. I did that because the diff didn't feel smooth enough. Its a brand new diff. Now the diff feels very smooth and consistent and with the external collar installed correctly it could work as a diff or a solid. I'll try that after I check the solid front.

I also noticed there may be two different types of pistons in the front shocks. One was adjustable, the other wasn't. So I made them as close as possible. So the next thing I need to do is rebuild all the shocks, as someone has already mentioned.

I'm kind of glad this car didn't just work perfectly the first time. I'm learning a lot about how picky it is when things aren't setup right. I'll eventually get it, especially with the help of this forum.

thanks guys. I appreciate it.
AnthonyN is offline   Reply With Quote
Old 02-28-2008, 08:34 AM   #23314
Tech Elite
 
Derby Bros Racing's Avatar
 
Join Date: Nov 2003
Location: Arizona
Posts: 3,209
Trader Rating: 7 (100%+)
Default

You don't want to grease the ball diffs on a 710. They are exposed and the grease will attract dirt. I ran my diffs dry when I had a 710 and they lasted much longer.
Derby Bros Racing is offline   Reply With Quote
Old 02-28-2008, 09:33 AM   #23315
Tech Adept
 
Join Date: Dec 2007
Posts: 202
Default

Quote:
Originally Posted by Derby Bros Racing View Post
You don't want to grease the ball diffs on a 710. They are exposed and the grease will attract dirt. I ran my diffs dry when I had a 710 and they lasted much longer.
humm, the diff felt very uneven and sort of binding in a couple of places until I put a little grease on the balls. I didn't put much. Maybe it would have smoothed out on its own after some real use. I only had about 1/2 hour run time on that diff.
AnthonyN is offline   Reply With Quote
Old 02-28-2008, 09:54 AM   #23316
Tech Adept
 
rcpanama's Avatar
 
Join Date: Mar 2004
Location: Panama
Posts: 181
Default

Quote:
Originally Posted by AnthonyN View Post
humm, the diff felt very uneven and sort of binding in a couple of places until I put a little grease on the balls. I didn't put much. Maybe it would have smoothed out on its own after some real use. I only had about 1/2 hour run time on that diff.
What I do in my 710, which I use the Ball Differential, I take a Little Plastic Bag put some Diff Grease and then put the balls in the bag move them so they get cover with the grease and the install them in each hole so the grease cover completely the balls only, this has work very good for me.

RCPANAMA
__________________
Serpent 720 Novarossi Murnam 12 + 3CT Full Ceramic & 2630 pipe. 733 Novarossi Murnam 12 + 3SCT full ceramic & 2660 pipe , Nomadio Sensor, Xceed Lipo, Xceed Tires Japan Foam
rcpanama is offline   Reply With Quote
Old 02-28-2008, 11:06 AM   #23317
Tech Adept
 
Join Date: Dec 2007
Posts: 202
Default

Quote:
Originally Posted by rcpanama View Post
What I do in my 710, which I use the Ball Differential, I take a Little Plastic Bag put some Diff Grease and then put the balls in the bag move them so they get cover with the grease and the install them in each hole so the grease cover completely the balls only, this has work very good for me.

RCPANAMA
Yea, I didn't apply much more than that either. It should be OK.
AnthonyN is offline   Reply With Quote
Old 03-12-2008, 07:01 AM   #23318
Tech Adept
 
Join Date: Dec 2007
Posts: 202
Default Can't set front ride height low enough

Hello,

I'm having trouble setting my front ride height to 6mm. The lowest I can get it is about 7.5mm. I'm using the default shock placement and the shocks are set to the correct length for the front.

What do I have to do to lower the ride hieght?

an
AnthonyN is offline   Reply With Quote
Old 03-14-2008, 09:33 PM   #23319
Tech Rookie
 
Join Date: Mar 2007
Posts: 7
Default

Hello Anthony,
I will suggest to use gear diffs(front and rear). Try to use the highest #number of diff grease for the front(120,000) and the rear try (10,000 or 8,000). I use ofna brand. Also try the red spring and make sure that the holes on the shocks are the same.
El Buenote is offline   Reply With Quote
Old 03-17-2008, 11:27 AM   #23320
Tech Adept
 
Join Date: Dec 2007
Posts: 202
Default Centax thrust bearing hex screw keeps comming loose

Hello,

Does anyone know why the end hex screw on the centax clutch keeps comming loose? I have sufficient play in the clutch bell. I've tightened the screw as hard as I can, but it will still come lose after a tank or two.

I didn't see anywhere to use locktite on that screw? Are you supposed to?

Anyone ever have this problem, and if so, how did you correct it?

thanks
AnthonyN is offline   Reply With Quote
Old 03-21-2008, 05:14 PM   #23321
Tech Adept
 
stankulas's Avatar
 
Join Date: Jan 2004
Location: hartford ct
Posts: 230
Default

Quote:
Originally Posted by El Buenote View Post
Hello Anthony,
I will suggest to use gear diffs(front and rear). Try to use the highest #number of diff grease for the front(120,000) and the rear try (10,000 or 8,000). I use ofna brand. Also try the red spring and make sure that the holes on the shocks are the same.
would anyone know the part number for the front gear diff
__________________
RC America
Xray
Hudy
stankulas is offline   Reply With Quote
Old 03-21-2008, 05:27 PM   #23322
Tech Apprentice
 
gearhead13's Avatar
 
Join Date: Nov 2005
Location: Victoria, Canada
Posts: 86
Default

Quote:
Originally Posted by stankulas View Post
would anyone know the part number for the front gear diff
The 710 and 720 use the same front gear diff. The rear is different.
http://www.serpent.com/product/802601/
__________________
Serpent
Xray T2
OFNA/Picco red dot
Picco 2607 pipe
Dynamite race 20%
gearhead13 is offline   Reply With Quote
Old 03-24-2008, 02:39 PM   #23323
Tech Initiate
 
Join Date: Feb 2008
Posts: 24
Trader Rating: 3 (100%+)
Default

Hi, for all serpent 710 owners, i have a lot of parts new in their packages for sale!! at very low price!! here's the link:

http://www.rctech.net/forum/showthread.php?t=213744

also, i have a lot more parts of serpent 710 for sale(carbon radio plates, carbon shock towers, carbon chassis stiffeners,complete gear diff fr assembled,complete ball diff fr, etc...) go to the link above for more details. thanks!!!!!!!!!!!!!!!!!!!!
macho28 is offline   Reply With Quote
Old 05-06-2008, 01:16 PM   #23324
Tech Regular
 
Mike Schumacher's Avatar
 
Join Date: Nov 2005
Location: RC Madness, CT
Posts: 278
Trader Rating: 36 (100%+)
Default

What is the pulley teeth combo for running rubber tires?
__________________
◄◄ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ☆ ★ ►►
Mike Schumacher is offline   Reply With Quote
Old 05-07-2008, 03:05 PM   #23325
Tech Adept
 
Join Date: Aug 2005
Location: ft.myers,fl.
Posts: 187
Default

no change,,i think..
__________________
s-733 red cup racing,twister tires,byron fuel
serpentjack is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Serpent 705 J_Longbrake Nitro On-Road 4252 02-23-2015 12:34 AM
WTB: NIB Serpent 710 aN4rK1 R/C Items: Wanted to Buy 3 06-16-2006 09:23 PM
Serpent 835 JFCJ R/C Items: Wanted to Buy 3 02-20-2005 09:29 PM
Trade in Your Old Serpent 710 Parts for New Serpent 710 Parts fast_it710 R/C Items: For Sale/Trade 0 09-17-2004 12:27 AM
Serpent Impulse w/MT-12 and Serpent Starter box - cheap Solara R/C Items: For Sale/Trade 2 03-07-2003 03:01 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 06:30 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net