Notices
O.S. Engines Support Ask Bill Baxter your questions about O.S. Engines.

OS 30VG Compression ?

Old 04-20-2007, 12:33 PM
  #1  
Shark413
Senior Member
Thread Starter
 
Join Date: Nov 2006
Location: Los Angeles, CA
Posts: 428
Likes: 0
Received 0 Likes on 0 Posts
Default OS 30VG Compression ?

I recently bought a new OS 30VG and I noticed that even when new I could turn the motor over by hand using the flywheel (with some difficulty). After a about 1/2 gallon thru I can easily turn the motor over by hand, there is still some resistance when turning it over and the engine runs fine. Is this a characteristic of the ABL type engine? I also have a OS .21 VZB V-Spec which is an ABC engine and even after a gallon of fuel thru it I cannot turn the engine over by hand. I am currently using Trinity Monster 30% nitro with 12% oil.
Old 04-20-2007, 06:11 PM
  #2  
l3asher
Senior Member
 
Join Date: Nov 2006
Location: Lafayette, LA
Posts: 417
Likes: 0
Received 0 Likes on 0 Posts
Default RE: OS 30VG Compression ?


ORIGINAL: Shark413

I recently bought a new OS 30VG and I noticed that even when new I could turn the motor over by hand using the flywheel (with some difficulty). After a about 1/2 gallon thru I can easily turn the motor over by hand, there is still some resistance when turning it over and the engine runs fine. Is this a characteristic of the ABL type engine? I also have a OS .21 VZB V-Spec which is an ABC engine and even after a gallon of fuel thru it I cannot turn the engine over by hand. I am currently using Trinity Monster 30% nitro with 12% oil.

Me too, I just got mine back from warranty and they sent me a brand new engine. I did notice that I can turn it over by hand pretty easily.
Old 04-21-2007, 06:08 PM
  #3  
Shark413
Senior Member
Thread Starter
 
Join Date: Nov 2006
Location: Los Angeles, CA
Posts: 428
Likes: 0
Received 0 Likes on 0 Posts
Default RE: OS 30VG Compression ?

So is that normal (to be able to turn over a new engine by hand)?
Old 05-01-2007, 01:18 PM
  #4  
Bax
My Feedback: (11)
 
Join Date: Apr 2002
Location: Monticello, IL
Posts: 19,483
Likes: 0
Received 6 Likes on 5 Posts
Default RE: OS 30VG Compression ?

Different engines have different specs. The .30 VG is more of a "sport" engine than racing, so will be a bit looser in the piston/cylinder fit.

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.