ring and piston installation - 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 02-20-2004, 09:25 AM
Registered User
 
Join Date: Feb 2004
Location: Seattle
Posts: 12
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
ring and piston installation

I've searched through old posts and I haven't seen the question I have specifically addressed.

I'm putting new cast iron rings into a chevy sb. I have always read and heard that I should oil the rings and cylinder walls when installing the pistons. Recently, a machinist told me that this was "old school" and that it was better to install dry pistons into unoiled cylinders. He said that this would seat the rings "almost immediately". I am somewhat apprehensive to do this, as it is so different from everything I've ever heard. I was wondering if any of you had any thoughts on the matter.

Thanks.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-20-2004, 09:37 AM
brainsboy's Avatar
brains
 
Last photo:
Join Date: Jan 2004
Location: tampa
Age: 42
Posts: 988
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I always did no oil installs with chrome moly rings since they are poop-heads for not seating well. I dont think your gonna have to worry about seating with cast rings.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-20-2004, 11:00 AM
engineczar's Avatar
Hotrodders.com Moderator
 
Last photo:
Join Date: Sep 2002
Location: In Flowbench nirvana
Age: 51
Posts: 1,592
Wiki Edits: 0

Thanks: 3
Thanked 33 Times in 30 Posts
Make sure you oil the wrist pins, I put some light oil on the piston skirts. For the bores, after I've cleaned them well I wipe them down with a light film of 40w. I also don't oil the rings. I've never had a ring welding issue and get great leakdown numbers. I close friend who ran NHRA pro stock back in the 80's uses tranny fluid instead of 40w but I haven't tried that yet.
__________________
BSE Racing Engines
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-20-2004, 11:33 AM
King of my Man-cave.
 
Last photo:
Join Date: Nov 2003
Location: Michigan
Age: 55
Posts: 2,836
Wiki Edits: 0

Thanks: 2
Thanked 4 Times in 2 Posts
Some thoughts:

A) The only reason to use cast rings is if the engine runs on propane or natural gas. For almost any other reason, moly rings are by far the best choice and are just a little more expensive.

B) If there are problems seating moly rings, the fault lies not with the rings but with bore finish, fuel mixture, etc.

C) A small amount of oil is necessary to insure initial lubrication of the rings on start-up. What kind of lubrication is more of a personal choice, but engine oil or the lubes specific for this use are recommended. While there's no need to dunk the piston in a can of oil, a few squirts of oil from a CLEAN oil can on the skirts, bores, and rings will work just fine.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-20-2004, 12:04 PM
Registered User
 
Join Date: Feb 2004
Location: Seattle
Posts: 12
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks all for the good advice.
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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



All times are GMT -6. The time now is 07:13 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.