Cylinder wall pitting question - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old Aug 13th, 08, 11:26 AM Thread Starter
 
Join Date: Dec 2005
Posts: 2
Cylinder wall pitting question

Hello,

I recently purchase a short block 383 engine and while degreeing the cam I noticed the #5 cylinder wall has a few pits and two fairly large craters that didn't clean up when it was machined .030 over. I attached two pictures of the area.In the largest crater I was able to pick out rust particles with a small probe. I am concerned the crater depth is too close to the water jacket? I don't know how thick is the wall is in that area? Before I continue with assembly I would like to know if it is OK for me to continue. I am concerned it might have a coolant leak or that the rings will not seal in the piston. I am waiting a reply from the machine shop but I would like to be informed before hand.
Thanks in advance.
camaro1969ss is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old Aug 13th, 08, 12:24 PM
Tech Team
Terry
 
Join Date: Aug 2008
Location: Cherry Valley CA
Posts: 43
Re: Cylinder wall pitting question

The pits are likely caused by bubbles or voids in original casting that get exposed when bored. I wouldn't worry too much about water jacket thickness. But I would not use this block. The pits will cause excess wear on rings, collect carbon, create hotspots. Start over with better block.
camarrowman is offline  
post #3 of 3 (permalink) Old Aug 13th, 08, 02:00 PM
Senior Tech
Ed
 
BigBlock1969RS's Avatar
 
Join Date: Jun 2007
Location: Los Angeles, CA
Posts: 2,083
Re: Cylinder wall pitting question

Ditto on ring damage. You could have the block sonic tested and see how thick the walls are. If they are thick enough you could go like 040 or 060 over which might fix the pitting or reveal even more.

Probably since it is a small block it would be cheaper to find another block.

Ed

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BigBlock1969RS is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user 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.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome