Help with engine

Old 10-24-2010, 05:31 PM
  #1  
Tech Rookie
Thread Starter
 
Join Date: Apr 2005
Posts: 4
Default Help with engine

i got a traxxas t maxx, im fairly new to the nitro game

im having problems keeping it running, its got a brand new glow plug and i believe im running 30% nitro

ive messed with the idle, air/fuel settings and cant keep it running, i can get it to idle, but when i punch it to full throttle it dies, and if i slowly give it up to full throttle and let off quick it will die

the gas has been sitting for about a year so consider that also

i was told that the one way bearing was bad but would that effect keeping it running?

i was also told that since the car is few years old, the engine is just worn

so where shuld i start to get this ting running good, been messing with it for few days
eeae6000 is offline  
Old 10-24-2010, 06:01 PM
  #2  
Tech Elite
iTrader: (55)
 
jpalessi's Avatar
 
Join Date: Feb 2008
Location: SoCal
Posts: 4,747
Trader Rating: 55 (100%+)
Default

Originally Posted by eeae6000 View Post
i got a traxxas t maxx, im fairly new to the nitro game

im having problems keeping it running, its got a brand new glow plug and i believe im running 30% nitro

ive messed with the idle, air/fuel settings and cant keep it running, i can get it to idle, but when i punch it to full throttle it dies, and if i slowly give it up to full throttle and let off quick it will die

the gas has been sitting for about a year so consider that also

i was told that the one way bearing was bad but would that effect keeping it running?

i was also told that since the car is few years old, the engine is just worn

so where shuld i start to get this ting running good, been messing with it for few days
first i would make sure you have the correct long body plugs made for traxxas engines, having a short body WILL cause problems. second i would deff get some fresh fuel. providing the fuel is good and you do have the right plugs i would say your too lean on top, hi idle, and rich bottom. cutting out or "running on" are strong signs of a lean hsn. short body plugs drastically lower the compression in engines that require long body plugs and will have you leaning you trx to the moon trying to make power and will eventually end in failure.
jpalessi is offline  
Old 10-24-2010, 06:04 PM
  #3  
Tech Apprentice
 
gt fast's Avatar
 
Join Date: Sep 2010
Posts: 58
Default

dude, throw that fuel away. second get long plug like above said. major damage can come from using short plug. also, set both high speed needles and low speed needles all the way in, then back each one out anywhere from 2-3 full turns. it should stay running. if it stays running then play with it from there, most likly the gas, plug and lean top will couse your problem. simple fix but could couse damae if not fixed very soon.
gt fast is offline  
Old 10-24-2010, 06:11 PM
  #4  
Tech Rookie
Thread Starter
 
Join Date: Apr 2005
Posts: 4
Default

how do i know if its a long body plug?

what gas do you recommend me running?
eeae6000 is offline  
Old 10-24-2010, 06:32 PM
  #5  
Tech Elite
iTrader: (55)
 
jpalessi's Avatar
 
Join Date: Feb 2008
Location: SoCal
Posts: 4,747
Trader Rating: 55 (100%+)
Default

Originally Posted by eeae6000 View Post
how do i know if its a long body plug?

what gas do you recommend me running?
you should either be buying traxxas long plugs or OS LC3 long reach plugs made for the traxxas engines. i recommend ebmods fuel.
jpalessi is offline  
Old 10-24-2010, 07:15 PM
  #6  
Tech Rookie
Thread Starter
 
Join Date: Apr 2005
Posts: 4
Default

i mean what % and thank you
eeae6000 is offline  
Old 10-24-2010, 07:42 PM
  #7  
Tech Elite
iTrader: (55)
 
jpalessi's Avatar
 
Join Date: Feb 2008
Location: SoCal
Posts: 4,747
Trader Rating: 55 (100%+)
Default

Originally Posted by eeae6000 View Post
i mean what % and thank you
im pretty sure they come shimmed for 30% but i would double check on traxxas website, their forum is actually really good for their stuff.
jpalessi is offline  
Old 10-25-2010, 09:37 AM
  #8  
Tech Elite
 
Join Date: Mar 2009
Location: Aurora, Colorado
Posts: 4,011
Default

I think you just jumped the gun with the needles..

Reset back to factory settings, read the tuning bible here and start again.
token is offline  
Old 10-25-2010, 10:07 AM
  #9  
Tech Fanatic
iTrader: (20)
 
Join Date: Oct 2010
Location: Corona, CA
Posts: 789
Trader Rating: 20 (100%+)
Default

The factory settings for the engine is as follows (from fully closed/tightened):

HSN - 4 turns out
LSN - 1 1/2 to 1 3/4 turns out
Idle Gap - 0.7 - 1 mm

Don't worry about newer fuel. As long as it was sealed you shouldn't have any problems. Hope this helps!
quixoticboi is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.