ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 08-29-2021   #1
Vettemann98
 
Vettemann98's Avatar
 
Join Date: Jul 2017
Location: Fort Wayne IN
Posts: 44
Default Broken upper mounting bolt rear shocks

Sheared off head of one of the two upper mounting bolts trying to remove to inspect rear actuator function. Any suggestions on how to remove bolt? Easy out kit? Other?

Many thanks, Scott


Sent from my iPhone using ZR-1 Net Registry
__________________
Vettemann98 is offline   Reply With Quote
Old 09-05-2021   #2
Vettemann98
 
Vettemann98's Avatar
 
Join Date: Jul 2017
Location: Fort Wayne IN
Posts: 44
Default Re: Broken upper mounting bolt rear shocks

Well I actually got it out using an extractor kit and drilling. Was able to back it out enough to grab it with vise grip pliers and slowly back it out. All afternoon process.
Image1630877064.301597.jpg


Sent from my iPhone using ZR-1 Net Registry
__________________
Vettemann98 is offline   Reply With Quote
Old 09-05-2021   #3
Vettemann98
 
Vettemann98's Avatar
 
Join Date: Jul 2017
Location: Fort Wayne IN
Posts: 44
Default Re: Broken upper mounting bolt rear shocks

IMG_2552.JPG


Sent from my iPhone using ZR-1 Net Registry
__________________
Vettemann98 is offline   Reply With Quote
Old 09-06-2021   #4
WARP TEN
 
WARP TEN's Avatar
 
Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,038
Default Re: Broken upper mounting bolt rear shocks

Good work! All afternoon but a satisfying result I am sure. --Bob
__________________
2016 Long Beach Red Z06 #10281 "POPS Z"
1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts
--Sold but still running strong
1993 Quasar Blue #161 "HIL KING"
--Sold but still running strong, now with more than 120,000 miles
1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd
--Sold a long time ago
ZR-1 Net Registry Founding Member #95
NCM Lifetime Member
Favorite Quote--Attributed to Mickey Thompson:
"Too Much Horsepower is Almost Enough"
WARP TEN is offline   Reply With Quote
Old 09-06-2021   #5
Vettemann98
 
Vettemann98's Avatar
 
Join Date: Jul 2017
Location: Fort Wayne IN
Posts: 44
Default Re: Broken upper mounting bolt rear shocks

Yes what a relief!


Sent from my iPhone using ZR-1 Net Registry
__________________
Vettemann98 is offline   Reply With Quote
Old 09-06-2021   #6
HAWAIIZR-1
 
HAWAIIZR-1's Avatar
 
Join Date: May 2010
Location: Japan
Posts: 3,549
Default Broken upper mounting bolt rear shocks

Quote:
Originally Posted by Vettemann98 View Post
Yes what a relief!


Sent from my iPhone using ZR-1 Net Registry


What are your plans to get a nut up there to put the bolt back? I will be doing coilovers soon and hoping no issues. Glad to see you got it out okay.


Sent from my iPhone using ZR-1 Net Registry
__________________
Craig
"ZR-1 NO KA 'OI"
"ZR-1 ICHIBAN"
1995 #228 Black/Black with Dunn Heads
ZR-1 owner since September 2003
ZR-1 Net Registry Founding Member #0074
NCM Lifetime Member #2048


Last edited by HAWAIIZR-1; 09-06-2021 at 04:33 PM.
HAWAIIZR-1 is offline   Reply With Quote
Old 09-06-2021   #7
Vettemann98
 
Vettemann98's Avatar
 
Join Date: Jul 2017
Location: Fort Wayne IN
Posts: 44
Default Re: Broken upper mounting bolt rear shocks

Fortunately I was able to drill into the bolt after many attempts and it spun out enough for me to grab each side and turn it counterclockwise to back it completely out w/o damaging the welded nut above the hole. I then replaced with M8 nut per M. Haibeck suggestion and it screwed right in no issues. As your indicating there is zero access to that nut as it?s completely enclosed by a rectangular metal frame. M Haibeck states he often drills a small hole next to where the bolt is at on that frame to spray rust buster prior to removing upper mounting bolt to prevent what happened to me. Apparently he has a way to weld a nut in that space but it is a prolonged time consuming event as he related to me.


Sent from my iPhone using ZR-1 Net Registry
__________________
Vettemann98 is offline   Reply With Quote
Old 09-06-2021   #8
Vettemann98
 
Vettemann98's Avatar
 
Join Date: Jul 2017
Location: Fort Wayne IN
Posts: 44
Default Re: Broken upper mounting bolt rear shocks

BTW Im pretty sure it was you who had a post about wheel stud guides to assist with putting wheels back on ZR-1. THANK YOU. Its one of the best tools that I have to get those freakin heavy wheels back on without damaging the rotor assembly and most importantly my back.


Sent from my iPhone using ZR-1 Net Registry
__________________
Vettemann98 is offline   Reply With Quote
Old 09-06-2021   #9
HAWAIIZR-1
 
HAWAIIZR-1's Avatar
 
Join Date: May 2010
Location: Japan
Posts: 3,549
Default Re: Broken upper mounting bolt rear shocks

Quote:
Originally Posted by Vettemann98 View Post
Fortunately I was able to drill into the bolt after many attempts and it spun out enough for me to grab each side and turn it counterclockwise to back it completely out w/o damaging the welded nut above the hole. I then replaced with M8 nut per M. Haibeck suggestion and it screwed right in no issues. As your indicating there is zero access to that nut as it?s completely enclosed by a rectangular metal frame. M Haibeck states he often drills a small hole next to where the bolt is at on that frame to spray rust buster prior to removing upper mounting bolt to prevent what happened to me. Apparently he has a way to weld a nut in that space but it is a prolonged time consuming event as he related to me.


Sent from my iPhone using ZR-1 Net Registry


Good news. Thanks for sharing. I thought the welded nut was done. What a relief for you. I can imagine how difficult it would be to get a nut welded in there. Good job on this.


Sent from my iPhone using ZR-1 Net Registry
__________________
Craig
"ZR-1 NO KA 'OI"
"ZR-1 ICHIBAN"
1995 #228 Black/Black with Dunn Heads
ZR-1 owner since September 2003
ZR-1 Net Registry Founding Member #0074
NCM Lifetime Member #2048

HAWAIIZR-1 is offline   Reply With Quote
Old 09-06-2021   #10
HAWAIIZR-1
 
HAWAIIZR-1's Avatar
 
Join Date: May 2010
Location: Japan
Posts: 3,549
Default Re: Broken upper mounting bolt rear shocks

Quote:
Originally Posted by Vettemann98 View Post
BTW Im pretty sure it was you who had a post about wheel stud guides to assist with putting wheels back on ZR-1. THANK YOU. Its one of the best tools that I have to get those freakin heavy wheels back on without damaging the rotor assembly and most importantly my back.


Sent from my iPhone using ZR-1 Net Registry


Roadster (and then some?..Tom)on there was the one that told me about the slick stud extension thing a ma bob. You?re welcome. Best thing since sliced bread for sure. I?m glad it helped you too.


Sent from my iPhone using ZR-1 Net Registry
__________________
Craig
"ZR-1 NO KA 'OI"
"ZR-1 ICHIBAN"
1995 #228 Black/Black with Dunn Heads
ZR-1 owner since September 2003
ZR-1 Net Registry Founding Member #0074
NCM Lifetime Member #2048

HAWAIIZR-1 is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 04:24 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020