R.I.P OS SPEED XZ-B

Old 07-28-2013, 07:10 AM
  #1  
Tech Adept
Thread Starter
 
Harryaus's Avatar
 
Join Date: Apr 2013
Location: LRRCC sydney
Posts: 128
Default R.I.P OS SPEED XZ-B

I still cant believe this happened to me today at L.R.R.C.C today in my 8 T 2.0. Check this out an let me know if this has happened before http://www.youtube.com/watch?v=B5iOvmP6hEU
Harryaus is offline  
Old 07-28-2013, 08:22 AM
  #2  
Tech Master
iTrader: (25)
 
Join Date: Mar 2009
Location: Perth, West Australia.
Posts: 1,246
Trader Rating: 25 (100%+)
Default

What was the main bearing like?
smelly62 is offline  
Old 07-28-2013, 10:12 AM
  #3  
Tech Elite
iTrader: (53)
 
Join Date: Feb 2008
Location: Belleville, MI
Posts: 4,512
Trader Rating: 53 (100%+)
Default

55 liters on stock rear bearing?
nv529 is offline  
Old 07-28-2013, 10:32 AM
  #4  
Tech Elite
iTrader: (9)
 
RCmayor's Avatar
 
Join Date: May 2003
Location: Overland Park, KS
Posts: 2,745
Trader Rating: 9 (100%+)
Default

Ya thats what I thought, 14 gallons is pretty good. lol
RCmayor is offline  
Old 07-28-2013, 03:19 PM
  #5  
Tech Adept
Thread Starter
 
Harryaus's Avatar
 
Join Date: Apr 2013
Location: LRRCC sydney
Posts: 128
Default

I had changed both bearings a while ago, but the bearings I just pulled out are slightly damaged from small pieces metal. piston had plenty of pinch was still going hard.
Harryaus is offline  
Old 07-28-2013, 03:25 PM
  #6  
Tech Adept
Thread Starter
 
Harryaus's Avatar
 
Join Date: Apr 2013
Location: LRRCC sydney
Posts: 128
Default

One thing I will stand by is OS SPEED. I will never change brands, Ive used a few other brands in the past and most gave me headachs. Ive pushed this engine so hard, im surprised how it always performed. Now its time to get a spec II
Harryaus is offline  
Old 07-28-2013, 06:27 PM
  #7  
Tech Master
iTrader: (7)
 
Join Date: Dec 2008
Location: In a house
Posts: 1,115
Trader Rating: 7 (100%+)
Default

I have seen them crack the block. right where the motor mount bolts to. But I had only seen 2 do that. BUT 14 gallons I am impressed on an OS V-Spec.
bobbyc1127 is offline  
Old 07-28-2013, 07:29 PM
  #8  
TIX
Tech Master
iTrader: (17)
 
TIX's Avatar
 
Join Date: May 2008
Location: Melbourne Australia
Posts: 1,974
Trader Rating: 17 (100%+)
Default

Ive done that before. Its from the engine slapping the chassis. If its 14gal old then its most likely done plenty of slapping out on the chassis over time. Thats a very thin part of the block.
At FEMCA last year they had a log section that you'd slap the chassis on if you got it wrong. Cost me an RB C6USA Rody.
If your really worried about it happening again just put some washers between your mounts and the engine or buy the m2c engine spacers
TIX is offline  
Old 07-28-2013, 11:37 PM
  #9  
Tech Master
iTrader: (21)
 
Rsickles's Avatar
 
Join Date: Aug 2010
Location: Southeast USA
Posts: 1,337
Trader Rating: 21 (100%+)
Default

You said in the video 'the conrod went through the crankcase'.

What did the crankshaft/crankpin, backplate, and rear bearing look like?

If the rear bearing was fine and the crank/crank pin is fine, there's no way the rod would've been able to smash into the bottom of the case like that; I'd say TIX is probably right.
Rsickles is offline  
Old 07-29-2013, 01:06 AM
  #10  
Tech Fanatic
iTrader: (1)
 
juzza99's Avatar
 
Join Date: Sep 2007
Location: lrrcc track, sydney
Posts: 830
Trader Rating: 1 (100%+)
Default

Lol. Nice one harry. You did a good job on that mate.
juzza99 is offline  
Old 07-29-2013, 01:21 AM
  #11  
Tech Master
iTrader: (25)
 
Join Date: Dec 2009
Location: Quinby south Carolina
Posts: 1,694
Trader Rating: 25 (100%+)
Thumbs down

So the whole engine flexed or your crank pin broke shooting the bottom of the rod threw the case? I watched the video and it sounds like no parts failed? How that happens is a scary thing I am now going to fear when running my speeds
Matt Piva is offline  
Old 07-29-2013, 03:42 AM
  #12  
TIX
Tech Master
iTrader: (17)
 
TIX's Avatar
 
Join Date: May 2008
Location: Melbourne Australia
Posts: 1,974
Trader Rating: 17 (100%+)
Default

All engines flex. At 14 gallons it's an old engine. Lrrcc is a pretty hard track so it's not something that's all that surprising
TIX is offline  
Old 07-29-2013, 04:27 AM
  #13  
Tech Elite
iTrader: (24)
 
Join Date: Jan 2009
Posts: 2,147
Trader Rating: 24 (100%+)
Default

Originally Posted by Harryaus View Post
I still cant believe this happened to me today at L.R.R.C.C today in my 8 T 2.0. Check this out an let me know if this has happened before http://www.youtube.com/watch?v=B5iOvmP6hEU
That's a cute block hole. Great way to ruin a man's 10 seconds.
got_nitro is offline  
Old 07-29-2013, 06:35 AM
  #14  
Tech Adept
Thread Starter
 
Harryaus's Avatar
 
Join Date: Apr 2013
Location: LRRCC sydney
Posts: 128
Default

Yeah was getting old but still had plenty power for its age. I have a heavy throttle finger and that engine has copped a lot of slap's in its days. I did change bearings bout 8 months ago but not since then. Im surprised how well this engine performed over its with me always pushing it hard, highly recommend os xz-b
Harryaus is offline  
Old 07-29-2013, 07:12 AM
  #15  
Tech Adept
Thread Starter
 
Harryaus's Avatar
 
Join Date: Apr 2013
Location: LRRCC sydney
Posts: 128
Default

Originally Posted by juzza99 View Post
Lol. Nice one harry. You did a good job on that mate.
LOL only I could do that
Harryaus 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 © 2022 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.