R/C Tech Forums

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

Thread Tools Search this Thread
Old 09-17-2009, 11:12 AM   #1
Tech Rookie
Join Date: Sep 2009
Posts: 4
Default T-Maxx Troubleshooting

Hey guys, new to the forum =)

So, I'm new to the hobby. My friend bought the latest Revo, and I bought his old 2.5 T-Maxx (w/ 3.3). Over the past few months I've upgrade just about everything on it except for the Trans and Motor. I've read a LOT about tuning, and being a hobby mechanic that hasn't been *too* tough. But, even with all that, I haven't had any luck curing an issue, and neither have two seperate RC mechanics I've brought it to ...

So, every since day 1 since I've had it, it dies a lot. Now, I know all RCs die when you're running them from time to time, but this thing dies 2-3x as much as the other ones I run with. 99% of the time when it dies, its at a standstill, or just pulling to a stop. I use to have an issue with it dying while moving (even in 2nd doing 30+), but that seems to have cured itself with a lot of motor tuning. But, 99% of the time, after I get it started, if I let it sit for more than 30 seconds before pulling the gas it will die. If I'm cruising around for 2 minutes and I just hit the break, half the time it will die outright or sit there, sputter and bit and die again.

Again, at this point, its had 2 professional mechanics "tune it", I've done it a few dozen times, and at every track I go to, people feel bad for me and they come over to help and try to work on it too. It's cursed ...

So, then ... a similar issue happens with my friends brand new Revo, on his 4th or 5th day out with it. He pulls to a stop and it dies. He had to lift it off the ground, start it, pull the gas, and put it down ... sounded familiar, same issue I have at times. In his case, they swapped out the "Slipper Clutch" and it fixed the issue. Does that sound right?

Well anyway, that's the symptoms and I'm horribly frustrated. At this point I've paid people nearly $100 in helping troubleshoot it and I'm no closer to a solution at this point.

Thanks for any insight you might have!
spinaldex is offline   Reply With Quote
Old 09-17-2009, 01:01 PM   #2
Tech Elite
Join Date: Mar 2009
Location: Aurora, Colorado
Posts: 3,694

How old is the engine?

Change the glow plug
TLR - Spektrum - Horizon - TLR 8ight 4.0 - TLR 8ight-T 4.0 - TLR 22 4.0 - Orion - Sweep Racing Tires
token is offline   Reply With Quote
Old 09-17-2009, 01:09 PM   #3
Tech Champion
losi_racer's Avatar
R/C Tech Elite Subscriber
Join Date: Nov 2008
Location: mesa,az
Posts: 6,470
Trader Rating: 25 (100%+)

Clutch or lsn

Byron Fuels/AKA Tires/Radiopost/TKO/Viper Rc/Dialed Inc/Empire Metal Product/Advantage Racing Products
losi_racer is offline   Reply With Quote
Old 09-17-2009, 10:25 PM   #4
Tech Rookie
Join Date: Sep 2009
Posts: 4

I'm not sure how old the engine is. My friend had it for 2 years and he bought the Tmaxx used.

I've swapped Glow Plugs and it doesnt change anything.

I'll play with the adjustment a little more but I haven't had any luck keeping it stable with the lsn thus far. maybe it is the clutch? When people talk about the clutch do they mean the slipper clutch or are there multiple ones in the trannys? I haven't opened it up.
spinaldex is offline   Reply With Quote
Old 09-18-2009, 12:10 AM   #5
Tech Master
pickle311's Avatar
Join Date: Aug 2009
Location: Austin, TX
Posts: 1,650
Trader Rating: 31 (100%+)

It very well could be a low compression issue you're fighting and no ammount of tuning with solve that. How's the pinch on that motor?
pickle311 is offline   Reply With Quote
Old 09-18-2009, 08:11 AM   #6
Tech Lord
Integra's Avatar
Join Date: Dec 2006
Posts: 12,484
Trader Rating: 8 (100%+)
Send a message via MSN to Integra

Gotta love Trx 3.3's or maybe its a Super old school 2.5
TNS Driver - Radio Post - Blue Groove Apparel - Team Panther - Hitec - Losi - W.E.D. Paint - Clockwork Fuel - Competition Heat - SUMO Racing - Tekin - Team Terribles - M2C Racing - Matrix Concepts - Kal Gard - BuKu Power - DE Racing -
Integra is offline   Reply With Quote
Old 09-18-2009, 02:54 PM   #7
Tech Rookie
Join Date: Sep 2009
Posts: 4

I'm going to do an exchange for a new one this afternoon. I'm thinking I would rather just burn it in myself and go from there to start fresh. I looked at the OS .18, but based on all the forums I've read although its a stronger engine it takes as much tuning as the 3.3 and for the extra $100 I'm just not pro/hardcore enough to really see the difference, I don't race, I just screw around with my nitro. Hopefully that'll cure my issue!
spinaldex is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
I can't deal with this anymore!!! spawn_x Nitro Off-Road 7 02-07-2009 06:18 PM
novak tc2 touring troubleshooting help newm5 Rookie Zone 12 03-10-2006 12:25 AM

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 02:56 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