Race Car Tech Discuss anything related to road racing and auto X.

Wastegate bolt sheared off, help!

Old 06-03-08, 11:33 PM
  #1  
****** of disaster
10 Year Member
Thread Starter
iTrader: (1)
 
thetech's Avatar
 
Join Date: Aug 2001
Location: Santa Monica, CA
Posts: 1,115
Likes: 0
Received 0 Likes on 0 Posts
Wastegate bolt sheared off, help!

Ok, so this is a problem. I was removing my manifold today in an attempt to identify an exhaust leak. After getting it off, I'm unbolting the wastegate from the manifold when the head of one of the allen bolts literally snaps off. By the looks of it, the bolt is bent as well.

The remnants of the bolt are pretty securely wedged into the hole. I'm almost certain the hole will need to be redrilled and tapped, but that's getting ahead of myself at this point. I've tried vise-gripping it extremely tightly but no dice.

Any tips on what to do here? i figure racer-types are usually stuck in strange situations so hopefully someone can help me!

Pictures of failure:





thetech is offline  
Old 06-04-08, 01:42 PM
  #2  
Mr. Links
15 Year Member
iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,592
Likes: 0
Received 4 Likes on 4 Posts
Have you tried heating it, and then using some gloves with the vice grips?
Mahjik is offline  
Old 06-04-08, 01:59 PM
  #3  
Stay tuned...
15 Year Member
iTrader: (3)
 
AnthonyNYC's Avatar
 
Join Date: Jul 1997
Location: West Islip, Long Island NY
Posts: 2,917
Likes: 0
Received 0 Likes on 0 Posts
Soak with wd40. heat flange area, use vise grip.

If that does not work, try to screw 2 nuts onto that bolt and tighten them against each other, then try to remove.

If that is slipping weld a large nut on that bolt and turn it out with heat.

If that does not work, cut it and driill it out and use a nut, long bolt with lockwashers when reinstalling.

Anthony
AnthonyNYC is offline  
Old 06-04-08, 11:42 PM
  #4  
Warming the planet.
10 Year Member
 
Gadd's Avatar
 
Join Date: Dec 2004
Location: Chico, CA
Posts: 843
Likes: 0
Received 0 Likes on 0 Posts
Heat the housing with a torch with the vise grip on the bolt. The idea is to expand the housing with heat while keeping the bolt as cool as possible as you apply torque.

Paul
Gadd is offline  
Old 06-05-08, 04:42 PM
  #5  
****** of disaster
10 Year Member
Thread Starter
iTrader: (1)
 
thetech's Avatar
 
Join Date: Aug 2001
Location: Santa Monica, CA
Posts: 1,115
Likes: 0
Received 0 Likes on 0 Posts
Thanks guys, propane did the trick! Now just have to retap the thing...
thetech is offline  
Old 06-08-08, 08:01 PM
  #6  
RIP Mark
5 Year Member
iTrader: (2)
 
YaNi's Avatar
 
Join Date: May 2006
Location: Dublin, OH
Posts: 657
Likes: 0
Received 0 Likes on 0 Posts
High temp anti seize is your friend
YaNi is offline  
Old 06-12-08, 08:39 PM
  #7  
Haltech E6K
10 Year Member
 
Styk33's Avatar
 
Join Date: Feb 2001
Location: Northern California (USA)
Posts: 420
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by YaNi View Post
High temp anti seize is your friend
On all exhaust parts!
Styk33 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ian_D
Single Turbo RX-7's
25
10-14-15 12:31 PM
Shainiac
Single Turbo RX-7's
9
09-21-15 05:02 PM


Thread Tools
Search this Thread
Quick Reply: Wastegate bolt sheared off, help!


Contact 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: