R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-21-2009, 11:56 AM   #1
Tech Addict
 
WeatherB's Avatar
 
Join Date: Aug 2001
Location: Toronto. Ontario
Posts: 664
Trader Rating: 4 (100%+)
Default How to remove stubborn crankshafts?

Hi guys - I went to service my RB Hobby 9 last night and had a hell of a time removing the crankshaft from the engine. It seemed like it was stuck on the bearings. I even had a hard time removing it with a rubber mallet.

What is the best way to remove these stubborn crankshafts? I don't want to pound on it too hard and risk damaging something.

Never seen one so stuck before.
WeatherB is offline   Reply With Quote
Old 09-21-2009, 06:04 PM   #2
Tech Fanatic
 
SteveP's Avatar
 
Join Date: Mar 2002
Location: So Cal
Posts: 918
Default

I've had good success by using something harder than a rubber mallet. I thread a long hex screw into the tip of the crank to protect it and the threads of the crank, then I'll tap the tip of the crank on a piece of wood or even metal. I don't give it a hard swing because you can't be too hard on the crank. The more blunt impact tends to break the "stiction" or corrosion that's preventing easy removal.
SteveP is offline   Reply With Quote
Old 09-21-2009, 06:11 PM   #3
Tech Fanatic
 
Cory Kerber's Avatar
 
Join Date: May 2009
Location: Fresno, CA
Posts: 769
Trader Rating: 10 (100%+)
Default

Try heating up the engine block before removing it.
__________________
Losi 8ight-Novarossi N21R-Hitec Servos-AKA-M11 Spektrum
*TEAM TERRIBLES*
Cory Kerber is offline   Reply With Quote
Old 09-21-2009, 09:45 PM   #4
Tech Master
 
Join Date: Jul 2007
Location: Rossville Ga
Posts: 1,398
Trader Rating: 10 (100%+)
Default

Knock it out with a piece of wood. Just make sure to catch it it will not land on concrete.
bigde2001 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 06:53 AM.


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