Go Back  R/C Tech Forums > General Forums > Nitro Off-Road
Hey engine gurus - salvage or chuck it? >

Hey engine gurus - salvage or chuck it?

Hey engine gurus - salvage or chuck it?

Old 12-17-2009, 09:03 AM
  #1  
Tech Master
Thread Starter
iTrader: (8)
 
t0adman's Avatar
 
Join Date: Apr 2008
Location: Seattle, WA
Posts: 1,251
Trader Rating: 8 (100%+)
Default Hey engine gurus - salvage or chuck it?

Last season I blew a relatively new V-Spec after about 2 gallons of fuel. I finally tore the thing apart today and found some potentially problematic issues. Turns out the pin on the crankshaft that connects to the con rod sheered off and chunks of metal went flying around in a running engine. Miraculously the sleeve and piston are pristine. The engine case didn't fare so well. Check out the following images and let me know if you think it's worth trying to salvage this engine. I figure it will be $70 for a new crankshaft and $60 for new bearings. Maybe I just use this baby for parts, specifically the newer carb. Whatcha think? I'm having trouble getting excited about the V-Spec when something like this happens after barely any use. Sheesh!


t0adman is offline  
Old 12-17-2009, 09:06 AM
  #2  
Tech Master
iTrader: (8)
 
Akhor's Avatar
 
Join Date: Feb 2008
Location: Alberta,Canada
Posts: 1,386
Trader Rating: 8 (100%+)
Default

Sounds like your at least $130 in repairs.. I would rather put that cash towards a new motor without issues...
Akhor is offline  
Old 12-17-2009, 10:13 AM
  #3  
Tech Elite
iTrader: (1)
 
DOMIT's Avatar
 
Join Date: Oct 2007
Location: Fort Worth, Texas, USA, North America, Earth, Solar System, Milky Way Galaxy, Universe
Posts: 4,034
Trader Rating: 1 (100%+)
Default

By the time you buy a crank, bearings, case, and rod (the rod probably got damaged even if you can't tell) you could just about buy a new VSPEC... and you could certainly buy something like one of the new Alphas.

Scrap it.
DOMIT is offline  
Old 12-17-2009, 11:23 AM
  #4  
Tech Elite
iTrader: (25)
 
Racecrafter's Avatar
 
Join Date: Apr 2007
Location: RC Mecca
Posts: 4,140
Trader Rating: 25 (96%+)
Default

I personally don't trust cases after a catastrophic failure like that.

IMO it's a parts donor now I'm afraid.

Save your money and headaches and buy a freshy...
Racecrafter is offline  
Old 12-17-2009, 08:08 PM
  #5  
Tech Master
iTrader: (10)
 
Join Date: Jul 2007
Location: Rossville Ga
Posts: 1,398
Trader Rating: 10 (100%+)
Default

Chunk it
bigde2001 is offline  
Old 12-17-2009, 08:41 PM
  #6  
Tech Master
iTrader: (67)
 
cary's Avatar
 
Join Date: Mar 2009
Location: NorCal
Posts: 1,914
Trader Rating: 67 (100%+)
Default

Originally Posted by bigde2001 View Post
Chunk it
+1 I would not trust it
cary is offline  
Old 12-17-2009, 08:46 PM
  #7  
Tech Master
iTrader: (33)
 
MTclassPro's Avatar
 
Join Date: Nov 2009
Location: Wlsn, NC
Posts: 1,298
Trader Rating: 33 (95%+)
Thumbs down

Thats funny, I had a similar problem on mine to. Stick to GRP or Ninja

^^^^
+2
MTclassPro is offline  
Old 12-18-2009, 03:47 AM
  #8  
Tech Addict
iTrader: (36)
 
awdcameolsx's Avatar
 
Join Date: Apr 2009
Posts: 591
Trader Rating: 36 (100%+)
Default

I personaly would chuck the motor and buy a used ninja or speed. The cranks on those motors (speed and ninja) are way stronger. Just use a new rod and your piston and sleeve. Keep the carb obviously those are arguably the best out there and fit on a ton of other motors.
awdcameolsx 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.