cracked starter bolt hole on block - 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 07-21-2006, 10:41 PM
New Member
 

Last journal entry: as she sits now Sept 09
Last photo:
Join Date: Jun 2004
Location: Calgary, Canada
Posts: 29
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
cracked starter bolt hole on block

help....

I was just about to bolt in my starter in my recently built 383 sbc and discovered this little problem. This is the outboard hole that one of the starter bolts goes through. I can see a hairline going into the threaded area. Any ideas on how to fix this? Or am I screwed?
The motor has never been started, and I have a LOT of dollars into this block for machining and parts and really want to avoid pulling it or starting over again..

Neil
Attached Thumbnails
Click image for larger version

Name:	crack_sm3.jpg
Views:	125
Size:	92.1 KB
ID:	13539  

    Advertisement
__________________
shiny side up

Last edited by fezz-man; 07-21-2006 at 10:49 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-21-2006, 10:46 PM
cabowabo's Avatar
big Q
 
Last photo:
Join Date: Jun 2006
Location: CALIFORNIA NOR CAL
Age: 55
Posts: 219
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
pic

can you take a picture to see where the crack is it would help to see it so we can give you a idea how to fix it
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-21-2006, 10:50 PM
New Member
 

Last journal entry: as she sits now Sept 09
Last photo:
Join Date: Jun 2004
Location: Calgary, Canada
Posts: 29
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
just uploaded a pic....
__________________
shiny side up
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-21-2006, 10:59 PM
Member
 
Join Date: Aug 2003
Location: California
Posts: 903
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
fezz-man,

What I did on my engine when I found this same problem was to grind out the crack as far down as I could. Then I magnifluxed the crack so I could find the ends of the crack. I then drilled a small hole into the ends of the crack so it would not keep going. Then I use a wire feed welder with .035 stainless steel wire and a tri-mix gas. That is Co2, Argon, and Heilum. I also installed a stud in the hole so as not to plug the hole with weld-metal. I then welded the crack and then using a chipping hammer I beat the weld to relieve the stresses. I let it cool and then put the engine together. It has been running without any problems for just over four years now.

Good Luck
Scholman
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-22-2006, 09:08 AM
New Member
 

Last journal entry: as she sits now Sept 09
Last photo:
Join Date: Jun 2004
Location: Calgary, Canada
Posts: 29
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks Scholman,

I thought you can not weld cast iron. Is this really possible?

I was thinking of filling the hole with jb weld and inserting a stud. This of course would do nothing to fix the cracked piece. I am sure the cracked piece will break off when i apply any pressure to it and leave the threads useless.
__________________
shiny side up
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 07-22-2006, 09:42 AM
MI2600's Avatar
Member# 3287
 

Last journal entry: Vortec Heads
Last photo:
Join Date: Jul 2002
Location: N. Muskegon, MI
Posts: 2,632
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
A stud won't work with the trans/bellhousing in place. I suppose you could just remember to bolt the starter up before install.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 07-22-2006, 12:14 PM
BigDawgsEatFirst's Avatar
400SBC4Life
 
Last photo:
Join Date: Aug 2004
Location: Tac-Washington
Age: 40
Posts: 389
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
mine is cracked

I have been using mine cracked the same way as yours for three years.
I noticed the crack when a starter went bad.
Folks will say the block is trash
I said ok,and bolted the new starter on ,and have been crusing ever since.
you always have the option of fixing it.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 07-22-2006, 01:12 PM
BigDawgsEatFirst's Avatar
400SBC4Life
 
Last photo:
Join Date: Aug 2004
Location: Tac-Washington
Age: 40
Posts: 389
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
mine is cracked

I have been using mine cracked the same way as yours for three years.
I noticed the crack when a starter went bad.
Folks will say the block is trash
I said ok,and bolted the new starter on ,and have been crusing ever since.
you always have the option of fixing it.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
2 bolt vs 4 bolt main 350 small block CanadianCory Engine 9 10-30-2005 09:31 PM
Starter and Flywheels on a Canada block WakBordr7387 Engine 4 09-21-2004 08:45 PM
cracked block jtdchevy Engine 35 02-08-2004 11:53 PM
cracked block rocket Engine 2 10-09-2002 05:50 AM
4 Bolt Block HotRodS10 Engine 16 05-21-2002 06:27 PM


All times are GMT -6. The time now is 10:42 AM.


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.