Go Back  CorvetteForum - Chevrolet Corvette Forum Discussion > C5 Corvettes, 1997 - 2004 > C5 Tech
Reload this Page >

Inserts came off the frame that hold the radiator cradle support.

C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Inserts came off the frame that hold the radiator cradle support.

 
Old 03-19-2017, 08:37 PM
  #1  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default Inserts came off the frame that hold the radiator cradle support.

You know how the cradle is held on my 4 bolts? It gets threaded into a insert that's in the frame. Well those came off and they cant be reused or tapped back in. Can I buy these and press them in? Thinking I may have to get bigger inserts

Last edited by Chicago1; 03-19-2017 at 08:50 PM.
Chicago1 is offline  
Old 03-19-2017, 08:41 PM
  #2  
onspeed
CF Senior Member
Support Corvetteforum!
 
Member Since: Aug 2011
Location: Odessa TX
Posts: 1,072
Recieved 13 Likes on 12 Posts
Default

Can either reapproximate the hole in the frame rail and weld in inserts like stock or you can weld a plate ontop of the old hole area and weld the insert onto the plate.
onspeed is offline  
The following users liked this post:
Chicago1 (03-20-2017)
Old 03-19-2017, 08:49 PM
  #3  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default

no welder car cant be moved at the moment. but found some threads they actually have a tool for this. I may just get a different insert if the hole is to big.
Chicago1 is offline  
Old 03-19-2017, 11:47 PM
  #4  
fmvette9
CF Senior Member
 
Member Since: Mar 2003
Location: Baltimore MD
Posts: 175
Recieved 23 Likes on 20 Posts
Default

From the factory, the nutsert is a size M6 with a hex shape. I used a drill bit to make the hole in the frame round, and put in a size M8 nutsert.
fmvette9 is offline  
The following users liked this post:
Chicago1 (03-20-2017)
Old 03-19-2017, 11:54 PM
  #5  
hatewhatownsyou
CF Senior Member
 
hatewhatownsyou's Avatar
 
Member Since: Nov 2009
Location: ohio
Posts: 480
Recieved 23 Likes on 19 Posts
Default

Those are called swage nuts, self clinching nuts or pemserts and yes you can buy them. I think they require access to both sides tho



You can try rivet nuts, they crimped in from one side. You will just have to check your hole size

Last edited by hatewhatownsyou; 03-20-2017 at 12:05 AM.
hatewhatownsyou is offline  
The following users liked this post:
Chicago1 (03-20-2017)
Old 03-20-2017, 12:31 AM
  #6  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default

Thanks gents I will try and find some tomorrow on break. Didnt know the name of them either so that helped ALOT!
Chicago1 is offline  
Old 03-20-2017, 10:02 AM
  #7  
Patches
CF Senior Member
Support Corvetteforum!
 
Patches's Avatar
 
Member Since: Sep 2001
Location: Lake Elsinore, CA
Posts: 23,102
Recieved 720 Likes on 485 Posts
Default

I have put a lot of nutserts/rivnuts in various areas of the frame and other areas of my C5. I bought a couple of boxes of different Standard sizes with installation tools. They are the cat's meow to install stuff when you only have access to one side of a mounting surface.
Attached Images   
Patches is offline  
The following 4 users liked this post by Patches:
Chicago1 (03-20-2017), Pounder (03-20-2017), Sam Handwich (03-22-2017), SG Lou (04-10-2017)
Old 03-20-2017, 10:42 AM
  #8  
Pounder
CF Senior Member
Support Corvetteforum!
 
Pounder's Avatar
 
Member Since: Jun 2014
Location: Shawnee Oklahoma
Posts: 9,778
Recieved 1,439 Likes on 1,220 Posts
Default

Originally Posted by Patches View Post
I have put a lot of nutserts/rivnuts in various areas of the frame and other areas of my C5. I bought a couple of boxes of different Standard sizes with installation tools. They are the cat's meow to install stuff when you only have access to one side of a mounting surface.
I use that also, very useful !!!
Pounder is offline  
Old 03-20-2017, 02:08 PM
  #9  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default

Originally Posted by Patches View Post
I have put a lot of nutserts/rivnuts in various areas of the frame and other areas of my C5. I bought a couple of boxes of different Standard sizes with installation tools. They are the cat's meow to install stuff when you only have access to one side of a mounting surface.
I'm gonna have to order one of those!!!

I did fix it I went to ace and got whatever these things are called pictured below. I had to drill the factory insert holes slighter larger and inserted these. I guess they bind down or something so you can tighten whatever you need to. I did a couple laying down pull ups and that cradle support is solid!!!




Chicago1 is offline  
Old 03-28-2017, 11:33 AM
  #10  
vipmiller803
CF Member
 
Member Since: Feb 2016
Location: Sterling Heights MI
Posts: 77
Recieved 7 Likes on 7 Posts
Default

I had that problem before.

For future reference, you can actually buy those nut inserts. They do not require access from both sides or any puller tool as mentioned above.

The frame is actually not drilled a circular hole there, but rather a 6 point hole. All you do is insert nut and bolt with nothing attached. Tighten bolt to get the nut to crush in. Remove the bolt and go about your business. The frame holes can sometimes elongate though, so it isn't a fool proof plan unless you can get the frame to straighten out just the right way.

Something similar to this:
https://www.volvette.com/5CL010F.html

Part numbers and fuller story in post #16 of:
https://www.corvetteforum.com/forums...-question.html

Last edited by vipmiller803; 03-28-2017 at 11:43 AM.
vipmiller803 is offline  
The following users liked this post:
Chicago1 (03-28-2017)
Old 03-28-2017, 01:13 PM
  #11  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default

Dang that's great to know. Thanks!!
Chicago1 is offline  
Old 04-10-2017, 01:11 PM
  #12  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default

Well my method/part didnt work. I took it out and hit a few spots and it ripped out again. Grrrrr.
Chicago1 is offline  
Old 04-12-2017, 09:02 AM
  #13  
Patches
CF Senior Member
Support Corvetteforum!
 
Patches's Avatar
 
Member Since: Sep 2001
Location: Lake Elsinore, CA
Posts: 23,102
Recieved 720 Likes on 485 Posts
Default

Shant, I have an extra tool and inserts I can throw in the mail if you get desperate.
Patches is offline  
Old 04-12-2017, 09:13 AM
  #14  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default

Thanks Ed, I will let you know I think I may just tact weld it. We shall see because I think the hole may be to big for the stock inserts.

Last edited by Chicago1; 04-12-2017 at 09:13 AM.
Chicago1 is offline  
Old 04-12-2017, 04:44 PM
  #15  
fmvette9
CF Senior Member
 
Member Since: Mar 2003
Location: Baltimore MD
Posts: 175
Recieved 23 Likes on 20 Posts
Default

It's simple to repair. You need a size M8 nutsert also called riv-nut, as pictured in Patches reply above, available from Fastenal or McMaster Carr. The factory size is an M6, but you need to go up a size since the frame hole is enlarged. You should use the suggested drill bit size for the M8 to make the frame hole nice and round. You can construct a very simple but effective tool to install the nutsert with a M8 bolt, couple of nuts, lock washer, and a washer.

Google "how to install nutsert" and you will find directions on constructing the tool.

Last edited by fmvette9; 04-12-2017 at 04:46 PM.
fmvette9 is offline  
Old 04-12-2017, 05:37 PM
  #16  
Chicago1
CF Senior Member
Thread Starter
 
Chicago1's Avatar
 
Member Since: Mar 2008
Location: Rio Rancho NM
Posts: 11,870
Recieved 160 Likes on 122 Posts
Default

Thanks we have a Fastenal here in town. Ill head over there tommorow Never welded so sounded interesting to me to do...lol probably not a good idea..
Chicago1 is offline  
Old 04-12-2017, 07:13 PM
  #17  
fmvette9
CF Senior Member
 
Member Since: Mar 2003
Location: Baltimore MD
Posts: 175
Recieved 23 Likes on 20 Posts
Default

I will attempt to describe the install tool so you can buy the parts while you are at the store. From the factory, there is a hex hole which prevents the nutsert from rotating when it is installed. You will be buying a round one, since the hex shape is destroyed, and using a drill bit to make the correct round hole for the M8 nutsert.

Take a long M8 bolt and screw a nut to the bottom, followed by a flat washer, M8 or M10 nut with the threads drilled out so it freewheels on the bolt, a star washer, and then screw on the nutsert. Put the head of the bolt in a vise, and holding the nutsert tighten the lower nut. This compresses the star washer between the freewheeling nut and flange of the nutsert, locking them together. By holding the freewheeling nut with a wrench, the nutsert will not rotate when installing (serving the purpose of the hex hole). Insert the nutsert in the frame, and hold the freewheeling nut and the bolt constant, turn the bottom nut. This will pull the bolt straight down, expanding the base of the nutsert against the inside of the frame. It does take three hands, but works wonderful.

Buy two nutserts, so you can compress one nutsert outside of the car to understand how it works. Sounds complicated, but once you see how it works, very simple.

When this happened to me, I partially expanded a factory M6 outside of the car enough so I could fully expand it in the frame even though the hole had enlarged. 7 years later the M6 nutsert metal fatigued the frame and fell out. The hole in the frame was so big, I had to go to an M12 nutsert. If I had used an M8 the first time it happened, it would have not fatigued the frame.

Last edited by fmvette9; 04-12-2017 at 07:25 PM.
fmvette9 is offline  
 


Thread Tools
Search this Thread
Quick Reply: Inserts came off the frame that hold the radiator cradle support.


Sponsored Ads
Vendor Directory

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

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: