Go Back  Offshoreonly.com > Technical > General Q & A
Oh chit, I think my rods are cracked >

Oh chit, I think my rods are cracked

Notices

Oh chit, I think my rods are cracked

Thread Tools
 
Old 02-22-2003, 06:33 PM
  #1  
Registered
Thread Starter
 
formula31's Avatar
 
Join Date: Mar 2001
Location: ohio
Posts: 2,558
Likes: 0
Received 0 Likes on 0 Posts
Question Oh chit, I think my rods are cracked

Can someone who knows more than me look at these pics and confirm that this crack I have found on 4 stock rods are a bad thing. I suppose I need to change them all now, huh? Money is a real problem. Can I safely use stock gm truck rods for 450 hp?
Attached Thumbnails Oh chit, I think my rods are cracked-mvc-001s.jpg  
formula31 is offline  
Old 02-22-2003, 06:34 PM
  #2  
Registered
Thread Starter
 
formula31's Avatar
 
Join Date: Mar 2001
Location: ohio
Posts: 2,558
Likes: 0
Received 0 Likes on 0 Posts
Default

other view
Attached Thumbnails Oh chit, I think my rods are cracked-mvc-003s.jpg  
formula31 is offline  
Old 02-22-2003, 06:53 PM
  #3  
Gone Fishin'
Charter Member
 
Waterfoul's Avatar
 
Join Date: Nov 2000
Location: Grand Rapids/Holland/Grand Haven
Posts: 7,408
Likes: 0
Received 0 Likes on 0 Posts
Default

That doesn't look good.

I've got a set of stock rods laying around. I'll make you a deal on them.....collecting dust for me....someone might as well use them!!!
__________________
[b]M Go Blue.......Gator boots, gator luggage, gator purses... all at cut rate deals!!!!
Waterfoul is offline  
Old 02-22-2003, 06:55 PM
  #4  
Charter Member #1055/Moderator
Charter Member
iTrader: (1)
 
GO4BROKE's Avatar
 
Join Date: Feb 2001
Location: CNY
Posts: 4,585
Received 0 Likes on 0 Posts
Default

Thats junk, replace them all.
__________________
[img][/img]
GO4BROKE is offline  
Old 02-22-2003, 06:58 PM
  #5  
Registered
Thread Starter
 
formula31's Avatar
 
Join Date: Mar 2001
Location: ohio
Posts: 2,558
Likes: 0
Received 0 Likes on 0 Posts
Default

Man, Its amazing how that could have happened on a stock motor. I think the last guy who rebuilt this engine did something wrong to have had this happen. Mike. I could use them. . Email me at [email protected].
formula31 is offline  
Old 02-22-2003, 07:25 PM
  #6  
Registered
 
Back4More's Avatar
 
Join Date: Feb 2002
Location: Lake Michigan
Posts: 6,627
Likes: 0
Received 0 Likes on 0 Posts
Default

Good thing you caught that.
Back4More is offline  
Old 02-22-2003, 07:29 PM
  #7  
Registered
Thread Starter
 
formula31's Avatar
 
Join Date: Mar 2001
Location: ohio
Posts: 2,558
Likes: 0
Received 0 Likes on 0 Posts
Default

yea, I was getting ready to have new pistons hung on them and new bolts so hopefully the machine shop would have seen it. Never seen that before, 4 of the center rods have the identical crack. I just checked crank runout and its less than .001 so that wasnt the problem. All the bearings looked great ??
formula31 is offline  
Old 02-22-2003, 07:44 PM
  #8  
Gone Fishin'
Charter Member
 
Waterfoul's Avatar
 
Join Date: Nov 2000
Location: Grand Rapids/Holland/Grand Haven
Posts: 7,408
Likes: 0
Received 0 Likes on 0 Posts
Default

Could they have overtightened the rod bolts????
__________________
[b]M Go Blue.......Gator boots, gator luggage, gator purses... all at cut rate deals!!!!
Waterfoul is offline  
Old 02-22-2003, 07:48 PM
  #9  
Registered
Thread Starter
 
formula31's Avatar
 
Join Date: Mar 2001
Location: ohio
Posts: 2,558
Likes: 0
Received 0 Likes on 0 Posts
Default

They were very tight but I didnt check the torque to remove. The way the crack is, I think they were damaged by the bearings trying to spin on a previous blowup. Who knows. The engine was in very good shape and aparently rebuilt very well. I cant believe someone didnt see these cracks.
formula31 is offline  
Old 02-22-2003, 08:36 PM
  #10  
Registered
 
tripps's Avatar
 
Join Date: Mar 2001
Location: babylon,NY 11702-4116
Posts: 1,962
Received 24 Likes on 15 Posts
Default

I have a set of 7/16 bbchevy rods,nice shape,300.00 includes shipping tripps [email protected]
tripps is offline  


Quick Reply: Oh chit, I think my rods are cracked


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.