spun bearing fix???? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 06-16-2010, 03:56 AM
New Member
Join Date: Sep 2003
Posts: 29
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
spun bearing fix????

I have a 304 Australian v8 which has spun a bearing the crank will need replacing but the rod measures up ok so i will reuse it. What Iím wondering is if i can get away with just cleaning the engine without removing the lifters, cam heads etc... and then drop a new crank in or do i need to strip down to a bare block.
Whatís the normal practice for a spun bearing???

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 06-16-2010, 06:05 AM
DoubleVision's Avatar
Not Considered a Senior Member
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 43
Posts: 10,733
Wiki Edits: 0

Thanks: 19
Thanked 77 Times in 71 Posts
Stripping it all the way down and cleaning out the oil galley`s to make sure all the metal from the bearing is gone is what I would do. When the particles get in the oil they go everywhere the oil goes and they can take out parts with it. Since you have to tear it down all the way, you may as well rebuild it. Even if the rod checks out okay I would still have it resized and checked.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-16-2010, 07:50 AM
New Member
Join Date: Sep 2003
Posts: 29
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Yep thatís about what i thought i would have to do.
I was hoping there was an easier way, apart from the spun bearing the rest of the engine if fine, just changed the cam and went to solid lifters before it let go. I guess i will have to strip each lifter down and clean them out as well or is that going too far?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 06-16-2010, 08:45 AM
V8 Super Beetle's Avatar
VW makes it, Chevy shakes it..
Last photo:
Join Date: Jan 2008
Location: Houston, TX
Age: 36
Posts: 1,282
Wiki Edits: 0

Thanks: 8
Thanked 4 Times in 4 Posts
Might as well go all the way so it's done right. Really, how much more work is it to take out the cam, lifters and what not?
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 06-16-2010, 01:54 PM
ericnova72's Avatar
More for Less Racer
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 50
Posts: 13,239
Wiki Edits: 0

Thanks: 140
Thanked 1,753 Times in 1,487 Posts
There is no way that a spun bearing doesn't hurt the rod, no ifs, ands, or buts. It may look fine but you can bet it is oversize or out-of-round, or both, now. If you are lucky it is intact enough to resize.

You are asking to have it happen again if you don't have the rod resized.. I would have all the rods checked and resized, one has had a problem so now all are suspect. Could be another that is almost ready to fail now, and you put it back together only to have it fail.

Bearings don't just spin for no reason, have you determined the root cause of the problem?? Lack of oil , dirt or debris damage, rod out-of-round or without enough bearing crush, bolt stretch or fatigue, or ??.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

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

Posting Rules
You may post new threads
You may 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 On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cheap GM HVAC blower motor fix. M&M CUSTOM Electrical 8 05-17-2009 11:10 AM
355 spun bearing options V8 Super Beetle Engine 8 05-14-2009 02:47 PM
SBC Pilot Bearing Brian's56Chevy Transmission - Rearend 1 07-04-2007 08:23 AM
spun rod bearing astrops Engine 1 04-20-2004 09:27 AM
tiny little fish-scale-like flakes of bearing on bearing/journal bullheimer Engine 2 04-16-2004 01:12 PM

All times are GMT -6. The time now is 05:14 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.