R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 11-22-2005, 12:26 AM   #1
Tech Rookie
 
Join Date: Nov 2005
Posts: 2
Unhappy How to dissemble STS .28

Dear all
I have just bought a STS .28 engine for my monster truck. I would like to dissemble the engine for cleansing or porting works. Upon removal of the cylinder from the engine block, I found that there was no cir clip at the end of the piston pin facing to exhaust port. I have also tried to slide and remove the con rod from crankshaft. But unsuccessful ....how to dissemble the STS .28? Thanks you very much
hkyung is offline   Reply With Quote
Old 11-22-2005, 03:00 AM   #2
Tech Master
 
Join Date: Jan 2003
Location: NSW Australia
Posts: 1,296
Default

Maybe because the clip is not on the exhaust side, its is on the boost port side as per manual ?
http://www.stsrc.com.tw/download/21%...ual%20v3.1.pdf
au_Nightmare is offline   Reply With Quote
Old 11-22-2005, 05:24 AM   #3
M7H
Tech Elite
 
M7H's Avatar
 
Join Date: Dec 2004
Location: The Netherlands
Posts: 2,196
Default

Quote:
Originally Posted by au_Nightmare
Maybe because the clip is not on the exhaust side, its is on the boost port side as per manual ?
http://www.stsrc.com.tw/download/21%...ual%20v3.1.pdf
Yep, some engines don't have a clip on the exhaust side.
To prevent the piston pin to come out, the piston pin hole in the piston is a bit smaller there......
But for balans reasons, most engines do have clips on both sides.

Some years ago, I've had an OS engine with no circlips at all!
The liner was rotated about 45 degrees, so the piston clip moved just between the liner ports......
__________________
Serpent
M7H is offline   Reply With Quote
Old 11-22-2005, 10:33 AM   #4
Nitro Tech
 
dino.tw's Avatar
 
Join Date: Oct 2002
Location: I can drive!
Posts: 1,459
Default

All sts engine only use one wrist pin clip facing to boost port. The exhaust port is very hot so we cancel the clip. Wanna remove the conrod you can use zip-tie to fix the rod and pull it out. But it is danger if the piston fall. I would like to suggest you to disassemble the engine after the break-in process. When you break-in engine the engine will clean itself. You can use some fuel to rinse the engine that is enough. Don't need to disassemble it fully. Just remember don't over-rev when break-in.
dino.tw 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 09:12 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