Go Back  R/C Tech Forums > General Forums > Nitro Off-Road
motor sutting for 2 years with fuel and no after run oil... >

motor sutting for 2 years with fuel and no after run oil...

motor sutting for 2 years with fuel and no after run oil...

Old 06-17-2014, 04:05 PM
  #1  
Tech Addict
Thread Starter
iTrader: (4)
 
Join Date: Sep 2009
Posts: 560
Trader Rating: 4 (100%+)
Default motor sitting for 2 years with fuel and no after run oil...

What do I need to do before I start it up again??

Last edited by wantboost; 06-17-2014 at 08:50 PM.
wantboost is offline  
Old 06-17-2014, 04:20 PM
  #2  
Tech Elite
iTrader: (11)
 
1evo RRR Driver's Avatar
 
Join Date: Dec 2008
Posts: 2,512
Trader Rating: 11 (100%+)
Default

Depends on where it was sitting! But is prob toast!! Or what's going to happen is you'll start it and it will run, prob ok, but it prob won't last more than a gallon or 2......i could be wrong .....goodluck
1evo RRR Driver is offline  
Old 06-17-2014, 04:28 PM
  #3  
Tech Adept
 
alexzone007's Avatar
 
Join Date: Jan 2009
Location: miami
Posts: 224
Default

i put wd40 inside and leave it there for a few minutes and then i use my air compressor to remove excessive and new spark plug depends of the engine my engines are o.s good quality the start like new
alexzone007 is offline  
Old 06-17-2014, 05:36 PM
  #4  
Tech Addict
iTrader: (7)
 
Sean Dickinson's Avatar
 
Join Date: Apr 2008
Location: Peoria, AZ
Posts: 680
Trader Rating: 7 (100%+)
Default

Putting WD40 in there is a horrible idea! Just put some caster oil (an oil that the engine can burn) in the glow plug hole and spin the engine back and forth until it feels smooth again. Should fire right up, but you'll need to put a new glow plug in it as soon as the engine cleans itself out with the fuel.
Sean Dickinson is offline  
Old 06-17-2014, 05:38 PM
  #5  
Tech Addict
Thread Starter
iTrader: (4)
 
Join Date: Sep 2009
Posts: 560
Trader Rating: 4 (100%+)
Default

What's castor oil
wantboost is offline  
Old 06-17-2014, 05:49 PM
  #6  
Tech Master
iTrader: (1)
 
xrayracer1's Avatar
 
Join Date: Feb 2013
Location: Under your bed.
Posts: 1,192
Trader Rating: 1 (100%+)
Default

Originally Posted by wantboost View Post
What's castor oil
Castor oil is a natural oil that is used in some brands in model engine fuel. It has a high flash point so it doesn't burn as easy as synthetic oil does. Most hobby shops keep castor on the shelf as a lot of guy (mostly model airplane flyers) like to mix their own fuel.
xrayracer1 is offline  
Old 06-17-2014, 10:12 PM
  #7  
Tech Initiate
iTrader: (3)
 
ahawk65's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 34
Trader Rating: 3 (100%+)
Default

Originally Posted by wantboost View Post
What's castor oil
You can find it at places like Autozone. Too few posts to share a link, but search TowerHobbies "Castor Oil" and you'll see an example.
ahawk65 is offline  
Old 06-18-2014, 01:27 AM
  #8  
Tech Adept
 
Join Date: May 2014
Location: Northeast
Posts: 105
Default

If the engine is stuck it's because the fuel evaporated and the sticky oil tacked everything together. If you flood the engine with fuel again it will loosen everything back up. I had a force .28 sit for 4 years. The piston was stuck and the pull start pin was stuck in it's hole. I heated the pin with a small torch and it built pressure behind it (like a piston) and forced it out to sheer I could clean it up. The fuel freed the stuck piston and it rolled right over.

It's not uncommon for an engine even properly stored with after run oil to lock up after a few years. I have a few aircraft engines that are locked up solid, carb barrel and all. They are next on my list of engines to get going, but will take a little bit more tinkering.
Tug Driver is offline  
Old 06-18-2014, 03:55 AM
  #9  
Tech Elite
iTrader: (5)
 
Hoese37's Avatar
 
Join Date: Apr 2007
Location: Hutchinson, MN
Posts: 3,819
Trader Rating: 5 (100%+)
Default

Using WD40 to free an engine is perfectly fine. It can even be used as an after run oil. Just flush the bearings out with it or some new fuel. You could even let it soak for an hour or two. Just remember to coat everything on some sort of light oil before you fire it up again for the first time.
Hoese37 is offline  
Old 06-18-2014, 09:20 AM
  #10  
Tech Master
iTrader: (4)
 
wittyname's Avatar
 
Join Date: Aug 2012
Location: Hampton Roads
Posts: 1,896
Trader Rating: 4 (100%+)
Default

I actually run a rb ws7 that sat for 6 years (maybe more) . All I did was take off the back plate , and the glow plug and run a can of "mass air cleaner" from the auto parts store through it till it freed up. Then , I used mobile 1 0-20 to lube things on start up . Runs great ...
wittyname is offline  
Old 06-18-2014, 11:45 AM
  #11  
Tech Elite
 
morgoth's Avatar
 
Join Date: May 2010
Location: Belgium
Posts: 2,827
Default

Originally Posted by Hoese37 View Post
Using WD40 to free an engine is perfectly fine. It can even be used as an after run oil. Just flush the bearings out with it or some new fuel. You could even let it soak for an hour or two. Just remember to coat everything on some sort of light oil before you fire it up again for the first time.
Except if the crank is filled with silicone. The WD40 breaks down the silicone insert.
morgoth is offline  
Old 06-18-2014, 01:53 PM
  #12  
Tech Master
iTrader: (42)
 
Join Date: May 2009
Posts: 1,121
Trader Rating: 42 (98%+)
Default

You can just use the fuel your going to use and let it sit in the engine. Take the plug out and fill up the engine thro the carb and let it sit. After about 30mins you can lightly turn the crank to help work the dried up oil loose. Let it continue to sit for another 30mins then flush with new fuel a few times and good to go.

The only other thing is you might have oil build up in the needles so you could take the carb off and soak it in fuel too
RockStar_199 is offline  
Old 06-25-2014, 12:06 AM
  #13  
Tech Adept
 
Join Date: Jan 2011
Posts: 108
Default

ive had this happen several times. what i do is remove the head, bsckplate, and carb and let soak in nitro submerged for a day. Reassemble, seal, and voila. hope it works and runs!
stadiumangt is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.