R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 06-11-2008, 07:20 PM   #1
Tech Rookie
 
Join Date: Jun 2008
Posts: 2
Default TRX 3.3 Studder

Well, I have a REVO 3.3 with the stock engine, accept I run a trinity pipe and motor saver air filter. I am running werks 30% racing blend. All of last summer it ran pretty well at consistent temps of around 215-225 F and always had alot of power and ran strong. This summer I decided to pull it out and after barely starting it ran around my yard and after a few minutes hit 300 F! So i shut it off and just recently brought it back out again for another try. When I started it up and started running it around it will studder very badly at WOT. As in after a bout 10ft of WOT it will start to Run, Die, Run, Die kind of thing. I don't see any noticeable amounts of exhaust smoke, but I was thinking this was because I have a blown gasket where my tuned pipe's manifold connects at the exhaust port on the block. I have found dark oil/fuel on the block and on the a arm after just running it for not too long. I have tried alot of different mixtures with both the low and high speed needles and it doesn't like to run after too much adjustment, and when it does run it runs like stated previously. Anyone know whats wrong? This motor has 1.5 Gallons on it.
TeeWX98GST is offline   Reply With Quote
Old 06-11-2008, 09:05 PM   #2
Tech Regular
 
Join Date: May 2007
Location: San Antonio, Texas
Posts: 426
Default

Your high speed needle is set to lean. Turn it about 2 hours counter clockwise and try it again. If it still does it, give it another 1 hour. Should be good to go.
__________________
_____________________
Sponsored by:
Fusion Motorsports
Bad Dog Rc
www.baddogrc.com
www.speedtechrc.com
My rides

Jammin CRT.5 w/ OS .12 TZP 5
Team Losi 8ight-T w/ Ninja JX .21
stiffler297 is offline   Reply With Quote
Old 06-12-2008, 08:05 AM   #3
Tech Master
 
RC Dad's Avatar
 
Join Date: Jun 2007
Location: Bismarck
Posts: 1,355
Trader Rating: 26 (100%+)
Send a message via MSN to RC Dad
Default

Sounds like it's still lean, but assuming your tune didn't change itself during storage and it was running fine when you put it away:
fix that blown exhaust gasket and clean the air filter. It might be time for a fresh glow plug too, they seem to degrade quickly during storage after they've been used.
Sounds like the motor is working way harder than it needs to so check drivetrain bearings that may have rusted over the winter and clean or replace as needed.
__________________
GV2 Pro, XXX4G+, Blitz SCT, CRC GenXL
RC Dad is offline   Reply With Quote
Old 06-12-2008, 09:36 AM   #4
Tech Rookie
 
ranger4x4's Avatar
 
Join Date: Feb 2008
Location: thief river falls,mn
Posts: 8
Send a message via Yahoo to ranger4x4
Default

i would also suggest you check all your fuel lines to make sure there is no unwanted air getting sucked into the lines. and check to make sure your tank has a good seal on it as well.
__________________
the bigger the boom the better the bashin.
ranger4x4 is offline   Reply With Quote
Reply



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 03:00 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net