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

OS. 18TM leaking FB

Old 09-15-2007, 11:18 PM
  #1  
Thread Starter
 
Join Date: Jul 2006
Location: niagara falls
Posts: 200
Likes: 0
Received 0 Likes on 0 Posts
Default OS. 18TM leaking FB

i have a OS .18tm on my revo, i consider this engine new it only has half a gallon through it. i have been noticing that there is fuel under the engine on the front, below the flywheel, when i took the engine off there was fuel on the engine mount.

what do I do, its got to be a front bearing leak? nothing else is leaking on my engine
Old 09-17-2007, 10:08 AM
  #2  
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. 18TM leaking FB

It is normal for some fuel to come out through the front bearing. You should notice a "stripe" under the flywheel on the chassis, and above, on the inside of the body. This fuel is what lubricates the front bearing. If the inside of the car is becoming loaded with raw fuel, and you are sure it's from the front bearing, then the cranshaft to crankcase fit is worn out. The bearing does not provide the seal. The seal is made by a close fit of the crank to the case between the carb and front bearing.

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 Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Manage Preferences 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.