R/C Tech Forums

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

Thread Tools Search this Thread
Old 06-30-2006, 07:51 AM   #1
Tech Rookie
Join Date: Jun 2006
Posts: 1
Default piston direction traxxas 2.5

OK dont mean to sound stupid but does anyone know which direction the notch in the piston skirt shoulf face...toward the clutch bell side or the exhaust side....thanks
reefkeeper is offline   Reply With Quote
Old 06-30-2006, 08:45 AM   #2
Tech Addict
SpeedBump57's Avatar
Join Date: Aug 2005
Posts: 660

I am not 100% in your case but the notch most always faces the clutch bell side. This is to make room for it to clear the crank. As well the back plate usually has a cut in it to make room for the piston.

Just as a tip make sure you have the piston at TDC before you put the backplate back on or you might crack the piston.
SpeedBump57 is offline   Reply With Quote
Old 06-30-2006, 06:34 PM   #3
Tech Elite
ProudSavageOwnr's Avatar
Join Date: Jan 2006
Location: Leboland Sydney NSW
Posts: 2,826
Send a message via MSN to ProudSavageOwnr Send a message via Yahoo to ProudSavageOwnr

the cutout in the piston is suppose to be lined up with the boost port.,,(the 2nd biggest port,not the exhaust port)
FG leopard comp w/Trevor Simpson 28.5 bzm crank
HIP Baja 5sct
AE tc5 3.5t speed monster,Futaba 4pks
Raptor G4 ,Raptor e550,Gaui x5,Mini titan v2,Precision aerobatics bandit 4s monster,Carbon z scimitar Jr 11x
ProudSavageOwnr is offline   Reply With Quote
Old 07-02-2006, 10:55 AM   #4
Registered User
Join Date: Jun 2004
Posts: 2,025
Trader Rating: 2 (100%+)

On the TRX 2.5 the piston can only go two ways, with the notch in the piston skirt to the front of the engine (clutch bell) or rear (exhaust) it goes toward the exhaust.

Check out the traxxas site for the PDF exploded view of the engine, it will give you a detailed set of instructions on how to service the engine and put it back together properly.
Desolas is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Traxxas Piston/Sleeve and Connecting Rod lincpimp R/C Items: For Sale/Trade 6 08-03-2008 05:09 PM
WTB 4SETS NEW PISTON/SLEEVE for TRAXXAS 3.3 wguapo R/C Items: Wanted to Buy 0 01-06-2008 09:30 PM
WTB 4SETS NEW PISTON/SLEEVE for TRAXXAS 3.3 wguapo R/C Items: Wanted to Buy 0 01-04-2008 06:22 PM
Traxxas 2.5 motor piston and sleeve Revoguy R/C Items: For Sale/Trade 2 05-02-2007 09:38 PM
Which Direction is the "normal" direction bvoltz Rookie Zone 8 07-26-2005 01:08 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 02:24 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