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 03-01-2010   #11
LGAFF
 
LGAFF's Avatar
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
Default Re: Header Bolt Battle

I did BP blaster with no success......MAPP Gas torch also. Time to cut to SOB off....plenty of thread to play with
__________________
LGAFF
90 #966-150K miles-sold
92 #234-sold
1987 Callaway TT #17
1991 ZR-1 #1359
LGAFF is offline   Reply With Quote
Old 03-01-2010   #12
flyin ryan
 
flyin ryan's Avatar
 
Join Date: Aug 2006
Location: Edmonton, Alberta or Phoenix, Arizona
Posts: 2,741
Default Re: Header Bolt Battle

Lucky you've got lots of thread...Still a PIA though
__________________
There are no limit's mans ingenuity, just as mans ingenuity will never conquer the forces & behavior of this planet...Smokey Y.
flyin ryan is offline   Reply With Quote
Old 03-01-2010   #13
-=Jeff=-
 
-=Jeff=-'s Avatar
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,170
Default Re: Header Bolt Battle

which bolt on the header? is it easy to get to?
__________________
1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978
-=Jeff=- is online now   Reply With Quote
Old 03-01-2010   #14
LGAFF
 
LGAFF's Avatar
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
Default Re: Header Bolt Battle

Yes, its D/S and right in the center, decent access from the side of the car.
__________________
LGAFF
90 #966-150K miles-sold
92 #234-sold
1987 Callaway TT #17
1991 ZR-1 #1359
LGAFF is offline   Reply With Quote
Old 03-01-2010   #15
Jim Nolan
 
Join Date: Jan 2007
Location: Florida
Posts: 241
Default Re: Header Bolt Battle

This is probably too late in your case but one trick I learned from My Military days is try to tighten first before trying to loosen. The theory here is that the best flats on the bolt are on the tighten side and all you need to do is break the bolt loose which is what you are trying to do prior to loosing it. I have also seen a brass drift used to tap on the top of the bolt head to break the siezure. Not hard but a firm tap.

Good luck!
Jim Nolan is offline   Reply With Quote
Old 03-01-2010   #16
Pete
 
Pete's Avatar
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
Default Re: Header Bolt Battle

Quote:
Originally Posted by LGAFF View Post
Yes, its D/S and right in the center, decent access from the side of the car.
Lee, is this your 1990 Z?
If it's the screw next to the center stud, worst case just don't cut it flush for now and don't put a screw there.

I only do criss/cross pattern on my headers 2 screws on each header tube one the center stud tubes i don't even put screws the stud does just fine on the inner side and just put one screw on the outside of the center tubes.
I can explain a little beter on the phone

Pete
__________________
'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
Pete is offline   Reply With Quote
Old 03-01-2010   #17
-=Jeff=-
 
-=Jeff=-'s Avatar
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,170
Default Re: Header Bolt Battle

Some thing like this Pete???

O= bolt, X= no Bolt (_ used for alignment)


O____X__X____O___O____X__X____O

X____O__O____X_O_X____O__O____X


but think might be better:


X____O__X____O___O____X__O____X

O____X__O____X_O_X____O__X____O
__________________
1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978

Last edited by -=Jeff=-; 03-01-2010 at 01:24 PM.
-=Jeff=- is online now   Reply With Quote
Old 03-01-2010   #18
Pete
 
Pete's Avatar
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
Default Re: Header Bolt Battle

Quote:
Originally Posted by -=Jeff=- View Post
Some thing like this Pete???

O= bolt, X= no Bolt, S= Center Stud (_ used for alignment)



O____O__O____O____O____O__O____O

O____X__O____X_S__X____O__X_____O


This is my headers no issues

Pete
__________________
'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
Pete is offline   Reply With Quote
Old 03-01-2010   #19
Pete
 
Pete's Avatar
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
Default Re: Header Bolt Battle

O= bolt, X= no Bolt, S= Center Stud (_ used for alignment)

O____X_O____X___X____O_X_____O

X____O_X____X_S_X____X_O_____X


I have also used this way with no issues.
This is the way i was trying to explain to Lee.

The reason i do it like my previous post is visaul all top screws are in and people stop telling me i'm missing screws,
my reply "my wife thinks the same" LOL
Pete
__________________
'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage

Last edited by Pete; 03-01-2010 at 02:01 PM.
Pete is offline   Reply With Quote
Old 03-01-2010   #20
Dynomite
 
Dynomite's Avatar
 
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,807
Default Re: Header Bolt Battle

Quote:
Originally Posted by -=Jeff=- View Post
which bolt on the header? is it easy to get to?
So....this is a bolt installed in a header, not the original exhaust manifold.

Then this bolt must be only about 3/8 inch showing after you grind off the head (maybe a bit more with the gasket).

Pete's idea of just grind it off sounds like something I would do

After I applied a little heat and vice grips but not too much heat

I did not fill every header fastener position with a bolt either

Last edited by Dynomite; 03-01-2010 at 07:12 PM.
Dynomite 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 11:20 PM.


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