Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Engines and Mufflers


Engines and Mufflers Having problems or need advice on Engines or Mufflers?


Reply
 
Thread Tools Display Modes
Old 12-13-2011, 09:05 AM   #1
craig1980
Registered Users
 

Join Date: Nov 2011
Location: Lafayette, indiana
Default os 50 hyper question

I got a used OS50 to put in a new heli. Guy told me everything is good. Is there anything I should do before I put it in. I wanted to check the bearings but have no one around to help me and have never torn an engine down. Would you take it apart and check things over or just stick it in and see how it sounds and acts? Anything I should be looking for? Any advice on what I should or could do would be great. Thanks
craig1980 is offline        Reply With Quote
Old 12-13-2011, 04:33 PM   #2
LAMAR COOLEY
Registered Users
 
Posts: 385
 
My HF Map location
Join Date: Oct 2006
Location: Houma, Louisiana
Default inspecting a used engine

craig 1980
Maybe this will get you started. The first thing I might do is a preliminary check of the carb. With a piece of tubing connected to the fuel inlet . Blow through the tube and move the carb barrel.noticing the airflow "feel" from closed to open. This will only verify that the carb in not clogged at the delivery. Moving on. You might want to remove the head, piston and sleeve and inspect for scaring and or marring of the piston, sleeve and ring. Remove the back plate and check for excessive wear on the back plate. Take a look at the back bearing. Maybe you can determine it's condition. Check the connecting rod for excessive play on the crankshaft connecting rod pin. This should give you a pretty good idea of the engine's condition..
I hope this is of some small help.
Regards
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Here, when wanted
There, when needed
Everywhere, when looked for
LAMAR COOLEY is offline        Reply With Quote
Old 12-17-2011, 03:21 PM   #3
RC-Bearings
 

Join Date: Aug 2004
Location: Castle Rock, CO
Default

If you are comfortable with partial engine disassembly, remove the head, sleeve and piston. Now you can turn the crank without any other resistance. It should be completely smooth with NO resistance or gritty feel. If you have either of these, then a complete tear down is called for.
RC-Bearings is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Engines and Mufflers


Engines and Mufflers Having problems or need advice on Engines or Mufflers?

Thread Tools
Display Modes

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

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com