Nissan 370Z Forum  

!! Stripped Cat Bolt !!

Originally Posted by SPOHN I strongly suggest against a swivel. It makes it that much harder. If you take the intakes out you can use straight extensions to remove thus

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust


Reply
 
LinkBack Thread Tools Display Modes
Old 08-03-2011, 10:51 AM   #61 (permalink)
A True Z Fanatic
 
Synack's Avatar
 
Join Date: Apr 2011
Location: Houston
Age: 36
Posts: 1,012
Drives: Sideways
Rep Power: 16
Synack will become famous soon enough
Default

Quote:
Originally Posted by SPOHN View Post
I strongly suggest against a swivel. It makes it that much harder. If you take the intakes out you can use straight extensions to remove thus making it a hole lot easier. Plus you don't have to worry as much about the impact socket coming off.
So take out the intakes AND the strut bar in my case.
__________________
NO LONGER OWNS A 370
Turbo FR-S
Synack is offline   Reply With Quote
Old 08-03-2011, 12:30 PM   #62 (permalink)
A True Z Fanatic
 
SPOHN's Avatar
 
Join Date: Feb 2010
Location: Covington, GA
Age: 45
Posts: 14,844
Drives: Waiting on next Z
Rep Power: 221
SPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond repute
Default

Quote:
Originally Posted by Synack View Post
So take out the intakes AND the strut bar in my case.
Yes. That's what I did and it worked perfect for me. It's tighter on the drivers side but it will slide in there straight. If I remember right you will need a couple of extensions up to about 32". Plus I had a two foot breaker bar. Just be carefull when it gives. Don't want it to slam into the motor.
__________________
SPOHN is offline   Reply With Quote
Old 08-03-2011, 09:26 PM   #63 (permalink)
Track Member
 
Staples's Avatar
 
Join Date: Sep 2010
Location: Baltimore, MD
Posts: 546
Drives: '08 Infiniti G37s
Rep Power: 16
Staples is on a distinguished road
Default

Taking the stock air boxes out helped a good bit, but 4 out of 5 installs you'll have to break the head off the bolt to get the stock cats out. Try to use some sort of lubricant like PB Blaster or WD-40 and let it soak for a while. Make sure the car is cooled down, otherwise the bolts will still be expanded and you'll be setting yourself up for even more fail. If you're able to get the bolt a 1/4 of a turn, use more PB Blaster and try to hit the threads if possible and work your way back and forth.

If you have to snap the head of the bolt, so be it. It's not the end of the world and you can drill and re-tap. That's what had to be done on my car.
__________________
'08 Infiniti G37s - Forced Induction Fed
Staples is offline   Reply With Quote
Old 08-03-2011, 09:52 PM   #64 (permalink)
A True Z Fanatic
 
ZeeingAround's Avatar
 
Join Date: Dec 2010
Location: Michigan
Posts: 6,365
Drives: 3500 NVP 370Z-sold!
Rep Power: 86623
ZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond reputeZeeingAround has a reputation beyond repute
Default

Quote:
Originally Posted by SPOHN View Post
I strongly suggest against a swivel. It makes it that much harder. If you take the intakes out you can use straight extensions to remove thus making it a hole lot easier. Plus you don't have to worry as much about the impact socket coming off.
Mine was only a 30deg swivel and it was tight. I had no trouble at all with slipping on the driver's side. Passenger side was more of a pain. The O2 sensors came off easily with an adjustable wrench.
Forgot to mention that I was installing the stillen g3 at the same time, so the strut bar and intakes were out.
__________________
Get some roosters for eggs and Bulls for milk . Then you will see that gender matters. Especially at milking time.
ZeeingAround is offline   Reply With Quote
Old 08-04-2011, 12:30 AM   #65 (permalink)
Base Member
 
Join Date: Sep 2009
Location: daytona beach
Posts: 93
Drives: 09 nissan 370z 7AT
Rep Power: 16
halogodx is on a distinguished road
Default

So would you recommend against going to a shop and offering them $30-$40 just to remove the top 2 bolts ?
halogodx is offline   Reply With Quote
Old 08-04-2011, 01:53 AM   #66 (permalink)
Enthusiast Member
 
Motordyne's Avatar
 
Join Date: Nov 2008
Location: Los Angeles
Posts: 384
Drives: Z
Rep Power: 17
Motordyne is on a distinguished road
Default

I found that if you PB blast it on both sides when mildly hot and put a blunt point tip on a air chisel and vibro shock the flange around the outer circumference of the bolt, it will crack the rust in the frozen up bolt.

It can make the difference between snapping Vs unscrewing the bolt.
Motordyne is offline   Reply With Quote
Old 08-04-2011, 05:56 AM   #67 (permalink)
Base Member
 
Join Date: Sep 2009
Location: daytona beach
Posts: 93
Drives: 09 nissan 370z 7AT
Rep Power: 16
halogodx is on a distinguished road
Default

Quote:
Originally Posted by Motordyne View Post
I found that if you PB blast it on both sides when mildly hot and put a blunt point tip on a air chisel and vibro shock the flange around the outer circumference of the bolt, it will crack the rust in the frozen up bolt.

It can make the difference between snapping Vs unscrewing the bolt.
. Even if you snap the bolt, all you would have to do to fix is go to a hardware store and buy a new one right?
halogodx is offline   Reply With Quote
Old 08-04-2011, 06:46 AM   #68 (permalink)
A True Z Fanatic
 
CBRich's Avatar
 
Join Date: Apr 2009
Location: SC
Posts: 2,464
Drives: 370Z
Rep Power: 544
CBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond repute
Default

Are most of you guys who are destroying these bolts from up North where they salt the roads? Mine took a lot of torque but was nowhere near being damaged.
CBRich is offline   Reply With Quote
Old 08-04-2011, 11:08 PM   #69 (permalink)
Base Member
 
Join Date: Sep 2009
Location: daytona beach
Posts: 93
Drives: 09 nissan 370z 7AT
Rep Power: 16
halogodx is on a distinguished road
Default

Quote:
Originally Posted by CBRich View Post
Are most of you guys who are destroying these bolts from up North where they salt the roads? Mine took a lot of torque but was nowhere near being damaged.
I think it depends on how long you've had your car, the longer you've had it the worse the install is probably going to be due to rust accumulation.
halogodx is offline   Reply With Quote
Old 08-04-2011, 11:19 PM   #70 (permalink)
Enthusiast Member
 
Join Date: Mar 2011
Location: Bronx, NY
Posts: 372
Drives: '08 SFP IS-F
Rep Power: 14
FastPaced will become famous soon enough
Default

My car has 34k miles and has been owned and driven in NY through all seasons and I took mines off by torching it and having someone turning it counter-clockwise at the same time. Took some time and strength but it worked. I did this with an extension as well so I was able to keep my G3's in there
FastPaced is offline   Reply With Quote
Old 08-23-2011, 01:53 PM   #71 (permalink)
Track Member
 
'10Anamoly's Avatar
 
Join Date: May 2010
Location: GA
Posts: 882
Drives: 2010 370Z BS M6
Rep Power: 16
'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light
Default

Quick question.. isnt one of the bolts permanently in the factory header? Aka welded to it on the top so its not removable? or is that the one that has a star fitting on the top which can be removed from the engine bay with an extension?

Mine is a bit stripped out so if it gets loose I want to remove that factory bolt, dremel out the hole a wee bit and use some heavy duty replacements.
__________________
2013 Ford Mustang GT

374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd
'10Anamoly is offline   Reply With Quote
Old 08-23-2011, 02:57 PM   #72 (permalink)
A True Z Fanatic
 
SPOHN's Avatar
 
Join Date: Feb 2010
Location: Covington, GA
Age: 45
Posts: 14,844
Drives: Waiting on next Z
Rep Power: 221
SPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond reputeSPOHN has a reputation beyond repute
Default

None of it is welded and is removable. There shouldn't be any star shaped headed bolt down there.
__________________
SPOHN is offline   Reply With Quote
Old 08-23-2011, 03:35 PM   #73 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

I think the stud you are thinking about was in the cat, not the header. Once you convert to after-market it is just 3 straight bolts.
__________________
Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms
ChrisSlicks is offline   Reply With Quote
Old 08-23-2011, 04:22 PM   #74 (permalink)
A True Z Fanatic
 
Join Date: Jun 2011
Location: Maryland
Posts: 1,393
Drives: 11 370 6mt pw w/sp
Rep Power: 16
Methodical4u is a jewel in the roughMethodical4u is a jewel in the roughMethodical4u is a jewel in the roughMethodical4u is a jewel in the rough
Default

Quote:
Originally Posted by RockStarKick View Post
Getting nervous,,,, my HFC's will be here in a couple days.. Gonna use PB blaster the night before and just pray... LOL..
hit it a few times over the course of the next few days.
Methodical4u is offline   Reply With Quote
Old 08-23-2011, 04:39 PM   #75 (permalink)
Track Member
 
'10Anamoly's Avatar
 
Join Date: May 2010
Location: GA
Posts: 882
Drives: 2010 370Z BS M6
Rep Power: 16
'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light'10Anamoly is a glorious beacon of light
Default

Pretty sure one of those is a stud that is in the header, maybe they left it from the OEM cat when they removed it?
__________________
2013 Ford Mustang GT

374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd
'10Anamoly is offline   Reply With Quote
Reply

Bookmarks


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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
+ Toe Bolt Question + batman_4 Brakes & Suspension 24 05-30-2011 12:51 PM
Exhaust Stripped bolt Removal omgZ Intake/Exhaust 5 03-24-2011 10:52 PM
Bolt on gains Zsteve Engine & Drivetrain 2 07-23-2010 07:50 PM
Why is it always the LAST *@#$& BOLT!?! Dembflyr DIY Section (Do-It-Yourself) 13 04-23-2010 10:04 PM
Lug bolt covers 1013mm Wheels & Tires 4 02-05-2010 10:07 PM


All times are GMT -5. The time now is 08:36 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2