R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-05-2006, 11:24 AM   #1
Tech Rookie
 
Join Date: Sep 2005
Posts: 6
Unhappy HPI RS4 EVO - Pinion gear

I'm new to the RS4 Evo. Purchased a used one. When I start it up the 1st gear pinion unscrews off of the clutch bell. Is the 1st gear spur one way bearing my problem?? It seems OK (ie only turns in one direction). Any ideas?
HPI GUY is offline   Reply With Quote
Old 02-05-2006, 12:14 PM   #2
Tech Rookie
 
Join Date: Mar 2005
Location: Kansas
Posts: 17
Default

It's most likely not tight enuf.. try using some blue loctight and let it cure overnight.
Van-Smack is offline   Reply With Quote
Old 02-05-2006, 01:04 PM   #3
Tech Initiate
 
Join Date: Jan 2006
Posts: 22
Default

well its probably your set screw. Tighten it up, its grip is alen so just get an alen key screw it tight ( the set screws right near the dog bone cup. ) hope this helps.
Modifiedrs4evo3 is offline   Reply With Quote
Old 02-05-2006, 11:49 PM   #4
Tech Master
 
Rapid Roy's Avatar
 
Join Date: Oct 2002
Location: L.A. (Rowland Hts)
Posts: 1,531
Default

If its happening when you just start your engine, you are starting your engine backwards. If it happening when you try to drive, your 2 speed is going straight the 2nd gear and causing the 1st gear pinion to get spun off.
Rapid Roy is offline   Reply With Quote
Old 02-06-2006, 06:54 AM   #5
Tech Initiate
 
Join Date: Jan 2006
Posts: 22
Default

oh i thought u ment spur my bad....well take rapid roys advice..., and use a little thread lock not to much on the cb/pinion.
Modifiedrs4evo3 is offline   Reply With Quote
Old 02-06-2006, 05:30 PM   #6
Tech Rookie
 
Join Date: Sep 2005
Posts: 6
Default

How do I keep my transmission from going straight to 2nd gear? I've tried tightening down the ball & spring as far as it will go???
HPI GUY is offline   Reply With Quote
Old 02-07-2006, 01:02 AM   #7
Tech Master
 
Rapid Roy's Avatar
 
Join Date: Oct 2002
Location: L.A. (Rowland Hts)
Posts: 1,531
Default

Quote:
Originally Posted by HPI GUY
How do I keep my transmission from going straight to 2nd gear? I've tried tightening down the ball & spring as far as it will go???
If you have already done that, then somthing is binding up between the 1st and 2nd gears. Make sure that they spin independently of each other.
Rapid Roy is offline   Reply With Quote
Old 02-10-2006, 08:27 PM   #8
Tech Regular
 
Join Date: Jan 2006
Location: Andrews AFB, MD
Posts: 253
Trader Rating: 9 (100%+)
Send a message via AIM to NSantana Send a message via MSN to NSantana
Default

locktite, locktite, locktite,



Chances are the person who you got it from was trying out different gear combos and didn't have 'em set in for the long hual or didn't have a pinion gear tool...even HPI instructions for the pinions/clutchbell says to apply a SMALL AMOUNT of locktite to the cp pinions to keep them on. Good luck and enjoy! Those things are little tanks :-)
NSantana is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help super gear and pinion gear jojo RRR Electric On-Road 0 06-18-2007 07:37 PM
New Pinion Gear xscape Singapore R/C Racers 0 01-21-2007 07:11 PM
Would switching from a 19t pinion gear to a 21t pinion make a big difference ? thahookup Rookie Zone 5 05-19-2006 01:09 PM
what pinion gear should I run? duckbutter Electric On-Road 4 02-22-2006 11:33 PM
Pinion & Gear tkhoo Malaysian R/C Racers 4 08-30-2003 09:18 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 02:00 PM.


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