Stuck rear knuckle bolt - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 03-30-2015, 03:52 PM   #1
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Aug 2011
Location: South Jersey
Posts: 1,523
Total Cats: 30
Default Stuck rear knuckle bolt

Any ideas to getting these out? 8lb sledge and PB blaster haven't worked so far. Really trying to avoid using heat because I dont have new bushings on hand or replacement bolts.... If I remove the control arm does that make anything easier or maybe I could just bring both pieces together to the machine shop... I'm just trying to get them out to have new bearings pressed in

F New Jersey and their massive amounts of road salt!

Attached Thumbnails
Stuck rear knuckle bolt-20150330_144640_zpsvfukoigu.jpg  
BTMiata is offline   Reply With Quote
Old 03-30-2015, 04:32 PM   #2
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Aug 2011
Location: South Jersey
Posts: 1,523
Total Cats: 30
Default

Nevermind...
BTMiata is offline   Reply With Quote
Old 03-30-2015, 06:09 PM   #3
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Aug 2011
Location: South Jersey
Posts: 1,523
Total Cats: 30
Default

So Finally got it after a few hours of going back and forth working on it and then coming back into the office to help customers (I get paid for this?)

What ultimately worked for me was A LOT of PB Blaster, Heated it up with the Oxy/Ace torch, more PB Blaster, and a 10LB Sledge hitting it in beast mode.

Needless to say everything will be going back in with a ton of Anti-Seize

Attached Thumbnails
Stuck rear knuckle bolt-20150330_170025_zpsydixjxnu.jpg  
BTMiata is offline   Reply With Quote
Old 03-30-2015, 06:56 PM   #4
Senior Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Sweden
Posts: 1,391
Total Cats: 58
Default

This is a bent one after "some" persuasion:

They can be a bit stubborn, even if not rusty.
Attached Thumbnails
Stuck rear knuckle bolt-masserad_bult.jpg  
NiklasFalk is offline   Reply With Quote
Old 03-30-2015, 07:50 PM   #5
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

I got mine out by cutting it with the sawsal through the bushings and then using the press, a torch, and wax to get the rest of the bolt out of the spindle.
Leafy is offline   Reply With Quote
Old 03-30-2015, 07:54 PM   #6
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Aug 2011
Location: South Jersey
Posts: 1,523
Total Cats: 30
Default

Damn I guess I got seriously lucky here then...I have 2 bearings and I was planning on getting both of them replaced but now I'm thinking that might not be such a good idea...
BTMiata is offline   Reply With Quote
Old 03-30-2015, 07:57 PM   #7
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

Meh, if the bolt's stuck and you need to do the bearing just pull the spindle and the lower arm together and do the bearing that way.
Leafy is offline   Reply With Quote
Old 03-30-2015, 07:58 PM   #8
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Aug 2011
Location: South Jersey
Posts: 1,523
Total Cats: 30
Default

Quote:
Originally Posted by Leafy View Post
Meh, if the bolt's stuck and you need to do the bearing just pull the spindle and the lower arm together and do the bearing that way.
But then I'd need an alignment right?
BTMiata is offline   Reply With Quote
Old 03-30-2015, 07:59 PM   #9
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

You dont paint marker your cams?
Leafy is offline   Reply With Quote
Old 03-30-2015, 08:16 PM   #10
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Aug 2011
Location: South Jersey
Posts: 1,523
Total Cats: 30
Default

Quote:
Originally Posted by Leafy View Post
You dont paint marker your cams?
I haven't yet, no... I suppose I could though if I end up having to take the arm off
BTMiata is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
WTB Bellhousing Bolts patsmx5 WTB 1 10-01-2015 10:43 AM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM


Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:17 PM.