Crank needs polishing? - 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
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 12-31-2012, 03:29 PM
Registered User
 
Join Date: Dec 2012
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Crank needs polishing?

I'm trying to determine when a crank should be polished or re-ground. Can you use standard mics to do a simple measurement and accept all the area under the mic anvil(s) as being the same or what? It's hard to use a test indicator while the crank is still in the engine so what is suggested, please.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 12-31-2012, 05:19 PM
Registered User
 
Join Date: Dec 2012
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Forgot to identify crank condition. Engine was running well and dropped a seat. Cylinders were marginal so I pulled the rods to see almost the same pattern on the bearings as what someone posted a pic calling it a "Ohio" crank. My wear if wear at all in the bearings shows those lines but you can take a piece of writing paper and lightly rub the lines out to a slight dull buff appearance. Crank looks good but isn't new, not going into a racer, mics good but you can see light phantom lines in the surface. The phantom lines are polished with no obvious damage. The "ohio" look on the bearing faces concerned me the most.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 12-31-2012, 11:22 PM
4 Jaw Chuck's Avatar
Hotrodders.com Moderator
 
Last photo:
Join Date: Mar 2002
Location: Manitoba, Canada
Age: 49
Posts: 6,179
Wiki Edits: 0

Thanks: 121
Thanked 450 Times in 325 Posts
If you can't catch a fingernail on it, don't worry about it.
__________________
“She may not look like much, but she's got it where it counts, kid. I've made a lot of special modifications myself.”

— Han Solo
Reply With Quote Quick reply to this message
 
  #4 (permalink)  
Old 01-01-2013, 06:51 AM
Banned
 
Last photo:
Join Date: Nov 2012
Posts: 2,482
Wiki Edits: 0

Thanks: 173
Thanked 363 Times in 332 Posts
Quote:
Originally Posted by 4 Jaw Chuck View Post
If you can't catch a fingernail on it, don't worry about it.
this^^^^^^^^ for most builds..
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in

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
BBC crank casting numbers... which is the better crank Rush Hour Racing Engine 2 02-24-2011 10:55 PM
ground 400 crank or new 383 crank? backyard71nova Engine 10 09-12-2007 06:13 PM
use 265 crank for 302/use 262 crank for 312 denny1977 Engine 2 01-22-2006 01:02 PM
Scat 9000 crank VS stock 400 crank? MOORESPEED Engine 5 03-03-2005 10:54 AM
4ma crank vs stock clevo crank carnell Engine 1 08-17-2003 05:56 AM


All times are GMT -6. The time now is 12:26 AM.


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.