R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 12-24-2004, 12:50 PM   #1
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default HPI Nitro RS4 RTR 3 evo (engine starts - car doesn't move)

Hey Y'all!

I can get my engine to start now (thank goodness) and I broke it in through 4 tanks of gas. All is well until I wanted it to go around slowly for the next 4 tanks.

The car won't move, and I made sure that the reciever and controller are on, and the radio is already installed. I looked through the manual and it is installed correctly (it should be, since HPI did it themselves ).

When I touch on the gas on the controller, the car revs up and it doesn't move, and it threatens to cut out on me. Does anyone have any ideas as to why this is not working?

Thanks a lot!

-Justin.
Honda_Civic_Si is offline   Reply With Quote
Old 12-24-2004, 01:13 PM   #2
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default

I did some more searching, and I came up with this answer from a different site (Google rocks)

Quote:
If the engine runs fine, but the car won't go anywhere, chances are the problem is something has come loose in the drive train.

Begin with the rear wheels and ensure the nuts that affix them to the axles are secure. If the nuts are loose, the axle will spin inside the wheels. Next, move inward along the drive shafts to the differential case. If there are universal joints at the differential case, they are attached with small set screws. The set screws hold the drive joint onto the small stub shafts that protrude from the case. If they have loosened, the stub shaft will spin, but the drive joint will not. Align the drive joint so that the set screw will tighten onto the flat portion of the shaft. This may require some disassembly of the suspension to get access.

Lastly, inspect the main gear, and ensure the gear is tight on its shaft. When a slipper clutch is slightly loose, the main gear will turn, although power will not be transferred to the gearbox. You can readily see this when the engine is operating. The gear will turn, but the shaft will not.

These suggestions should help you to spot the problem. Particularly with gas-powered model cars, the engine's vibration tends to loosen every nut, bolt, and screw in the model. As a result, there is about one-half to 1 hour's worth of maintenance required for every 4 hours of running time to keep your vehicle in top running shape.
From: http://www.ofna.com/faq.html#nitro-wontmove

Could this be the case, and is there anything else?

-Justin.
Honda_Civic_Si is offline   Reply With Quote
Old 12-24-2004, 02:48 PM   #3
Tech Fanatic
 
nsxshogun's Avatar
 
Join Date: Mar 2004
Location: Maryland
Posts: 847
Send a message via AIM to nsxshogun
Default

My friend had the same problem. Look on page 14 and at the top make sure both of those screws are in there.
nsxshogun is offline   Reply With Quote
Old 12-24-2004, 03:13 PM   #4
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default

Do you happen to know which step number it is?

Thanks a lot, I was losing all faith!

-Justin.
Honda_Civic_Si is offline   Reply With Quote
Old 12-24-2004, 03:38 PM   #5
Tech Fanatic
 
nsxshogun's Avatar
 
Join Date: Mar 2004
Location: Maryland
Posts: 847
Send a message via AIM to nsxshogun
Default

Step 3
nsxshogun is offline   Reply With Quote
Old 12-24-2004, 03:59 PM   #6
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default

There seems to be an outer ring that moves over an inner ring and when you move it, the two holes line up sometimes
(a hole on the outer and a hole on the inner)


I dont really know if they should be screwed together and I don't really know what I am seeing, since the little hole is so dark inside

What did your friend do, and if these screws are missing, what did he do? Did he have to buy them separately or what?

Thanks so much

-Justin.
Honda_Civic_Si is offline   Reply With Quote
Old 12-24-2004, 04:02 PM   #7
Tech Fanatic
 
nsxshogun's Avatar
 
Join Date: Mar 2004
Location: Maryland
Posts: 847
Send a message via AIM to nsxshogun
Default

The one thats most likley missing is the one with nuthing underneth it Z721 it is a set screw go to your lhs and bring them your manuel and gear assembly theyll be able to help u.
nsxshogun is offline   Reply With Quote
Old 12-24-2004, 04:50 PM   #8
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default

Thanks so much!

I understand exactly what is missing and I am really glad that it is not my fault that this is not working.

This also leads to my question of WHY isnt this screw in there? Of something that cost this much, quality assurance levels aren't high enough that they didn't catch a screw missing, and for this to happen on several models?

Quality? What quality!

Anyways, I'll just take the whole entire car back to the hobby shop and have them sort it out. I don't know what I am doing and I don't want to mess anything up.

-Justin.
Honda_Civic_Si is offline   Reply With Quote
Old 12-24-2004, 05:03 PM   #9
Tech Fanatic
 
nsxshogun's Avatar
 
Join Date: Mar 2004
Location: Maryland
Posts: 847
Send a message via AIM to nsxshogun
Default

The screw was in there. But It must not have been tight and it just backed itself out.
nsxshogun is offline   Reply With Quote
Old 12-24-2004, 05:09 PM   #10
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default

Do you use the allen key to tighten it?


-Justin


Thanks so much for helping dude.
Honda_Civic_Si is offline   Reply With Quote
Old 12-24-2004, 06:52 PM   #11
Tech Fanatic
 
factory racer's Avatar
 
Join Date: Aug 2004
Posts: 949
Default

the clutch shoes could be worn out????
factory racer is offline   Reply With Quote
Old 12-24-2004, 07:47 PM   #12
Tech Addict
 
compaq888's Avatar
 
Join Date: Jul 2002
Location: Southern CA
Posts: 717
Send a message via AIM to compaq888
Default

Quote:
Originally posted by factory racer
the clutch shoes could be worn out????
hahahahaha, happened to me once, some screw came loose and my clutch shoes were destroyed, I was furious.

Thank god I don't drive HPI anymore, nothing but problems.
compaq888 is offline   Reply With Quote
Old 12-24-2004, 09:32 PM   #13
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default

Quote:
Originally posted by factory racer
the clutch shoes could be worn out????

How could this be possible? It is only 2 days old and it just finished being broken in....
Honda_Civic_Si is offline   Reply With Quote
Old 12-24-2004, 10:07 PM   #14
Tech Addict
 
compaq888's Avatar
 
Join Date: Jul 2002
Location: Southern CA
Posts: 717
Send a message via AIM to compaq888
Default

Quote:
Originally posted by Honda_Civic_Si
How could this be possible? It is only 2 days old and it just finished being broken in....
It's possible, if something is loose it can make the clutch shoes wear out really quick.
compaq888 is offline   Reply With Quote
Old 12-24-2004, 10:31 PM   #15
Tech Apprentice
 
Honda_Civic_Si's Avatar
 
Join Date: Dec 2004
Location: Alberta, Canada
Posts: 55
Default

I think it is the problem that NSXSHOGUN suggested. I will wait till the hobbyshop guys can fix it!

-Justin.
Honda_Civic_Si is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
North Georgia Summer Nitro Series starts Sun Aug 3rd bigde2001 Georgia Racing 44 08-04-2008 10:54 AM
New Sportwerks V1 .21 Pro Engine Priced to Move! Cain R/C Items: For Sale/Trade 7 02-26-2007 06:11 AM
My Nitro RS4 RTR 3 EVO Starts then dies !! help. yoshi_sx Singapore R/C Racers 1 12-26-2005 05:09 AM
Maxx Road Rage on rpm rims, ez-starts, nitro 4-tech FOR SALE nathonnice R/C Items: For Sale/Trade 0 07-11-2005 10:20 AM
engine starts? hdmx10 Rookie Zone 5 05-05-2003 05:25 PM



Currently Active Users Viewing This Thread: 2 (0 members and 2 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 08:20 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