Header Install
Burning Brakes
Joined: Oct 2001
Posts: 945
Likes: 24
From: NORTHRIDGE CALIFORNIA
IMHO, with cap screws and limited access you will not be
able to tighten some of the screws. Tube bends get in the way.
Some you can't get at straight on and since you can't see
them anyway, why make it harder on yourself?
Hex bolts allow socket access straight on or wrench access
from the side. I bought new (shorter)bolts from Fastenal- I can look
them up if you want.
Maybe your headers allow fit/use of a 90 degree hex wrench.
Still, the fun part is removing the heat shielding.
If you must:
http://www.zr1products.com/images/He...lation_Kit.jpg
I did not need oxygen sensor extentions or dip stick tube mods and assembled all the stuff myself.
able to tighten some of the screws. Tube bends get in the way.
Some you can't get at straight on and since you can't see
them anyway, why make it harder on yourself?
Hex bolts allow socket access straight on or wrench access
from the side. I bought new (shorter)bolts from Fastenal- I can look
them up if you want.
Maybe your headers allow fit/use of a 90 degree hex wrench.
Still, the fun part is removing the heat shielding.
If you must:
http://www.zr1products.com/images/He...lation_Kit.jpg
I did not need oxygen sensor extentions or dip stick tube mods and assembled all the stuff myself.
Last edited by 95ZR1; Mar 3, 2008 at 01:52 PM.
Thread Starter
Pro
Joined: May 2006
Posts: 633
Likes: 2
From: Nampa ID
IMHO, with cap screws and limited access you will not be able to tighten some of the the screws. Tube bends get in the way. Some you can't get at straight on and since you can't see them anyway, why make it harder on yourself? Hex bolts allow socket access straight on or wrench access from the side. I bought new (shorter)bolts from Fastenal- I can look them up if you want.
I think I will go with the bolts. If you have the part numbers of the bolts you purchased handy I'd appreciate that. You can PM me if you wish.
Thanks
Thread Starter
Pro
Joined: May 2006
Posts: 633
Likes: 2
From: Nampa ID
Semper Fi Brother
USMC 72-76 Det MAG-16
OV-10 Bronco Engine Mech
Burning Brakes
Joined: Oct 2001
Posts: 945
Likes: 24
From: NORTHRIDGE CALIFORNIA
M8x25 DIN151 Plain Hexagon Flange Lock Bolts
Wholesale Price: $1.09
Availability: In-Stock Item
Package Quantity: 1 (EA)
Qty: I got 30 - 16 a side and I reused 2 old bolts
Fastenal Part No. (Sku): 0161882
Manufacturer: Fastenal Approved Vendor
UNSPSC Code: 31161600
Category: Fasteners
Bolts
Flange Bolts
Also, Nick's header install write up is helpful on:
http://www.pnwzr1.net/PNWZR1.htm
And I love and identify with the commercial (valvoline I think) about how happiness is working under your car on cardboard over concrete. That's me!
Last edited by 95ZR1; Jan 23, 2008 at 02:02 AM.
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Thread Starter
Pro
Joined: May 2006
Posts: 633
Likes: 2
From: Nampa ID
I am in the middle of the header install on the '91. I can't get to the wire harness except to plug something in. There just isn't any room down there. So I need to extend the O2 sensor harness on the right side about a 1 1/2'. I can probably get the weatherpack connectors from NAPA, but advice on the wire size,type and any other information (especially the no-no's) on this would be appreciated.
Thanks
Thanks
Racer
Joined: Oct 2007
Posts: 311
Likes: 0
From: mammoth lakes ca
if you are putting in new o2 sensors you can use the old ends from the old sensors . in the chiltons manual explains how to remove the pins. i used 12 gauge wire. i extended them8in. to get to the right connector i rmoved the right brace that the motor mount was connected to . the motor will NOT drop as its held elsewhere . hope this helps on the heat shields get a box of bandaids i used most of the box . hands felt like sushi
Thread Starter
Pro
Joined: May 2006
Posts: 633
Likes: 2
From: Nampa ID
if you are putting in new o2 sensors you can use the old ends from the old sensors . in the chiltons manual explains how to remove the pins. i used 12 gauge wire. i extended them8in. to get to the right connector i rmoved the right brace that the motor mount was connected to . the motor will NOT drop as its held elsewhere . hope this helps on the heat shields get a box of bandaids i used most of the box . hands felt like sushi
Thanks
Burning Brakes
Joined: Oct 2001
Posts: 945
Likes: 24
From: NORTHRIDGE CALIFORNIA
FYI I also heard NOT to tightly seal and wrap either the existing O2 sensor wires or your extentions. There is some sort of air sampler tubing as a baseline you don't want to seal off or block.
Thread Starter
Pro
Joined: May 2006
Posts: 633
Likes: 2
From: Nampa ID
Thanks a lot Ted. I found the connectors at NAPA and am waiting on a call from Marc Haibeck to verify anything else before I make these. I'll post more later tonight on what I find out.
Thread Starter
Pro
Joined: May 2006
Posts: 633
Likes: 2
From: Nampa ID
I talked with Marc and there is no problem with extending the harnesses this way. He also mentioned that you can splice the wires, BUT, you can only use the butt connectors with no tape or soldering. If you do it that way you would more than likely end up with moisture problems.
Last edited by HammerZR1; Jun 18, 2012 at 07:46 PM.
Safety Car
Joined: Nov 2005
Posts: 3,835
Likes: 5
From: Grand Junction Colorado
www.fastenal.com Happened to be a store close to me.
M8x25 DIN151 Plain Hexagon Flange Lock Bolts
Wholesale Price: $1.09
Availability: In-Stock Item
Package Quantity: 1 (EA)
Qty: I got 30 - 16 a side and I reused 2 old bolts
Fastenal Part No. (Sku): 0161882
Manufacturer: Fastenal Approved Vendor
UNSPSC Code: 31161600
Category: Fasteners
Bolts
Flange Bolts
Also, Nick's header install write up is helpful on:
http://www.pnwzr1.net/PNWZR1.htm
And I love and identify with the commercial (valvoline I think) about how happiness is working under your car on cardboard over concrete. That's me!
M8x25 DIN151 Plain Hexagon Flange Lock Bolts
Wholesale Price: $1.09
Availability: In-Stock Item
Package Quantity: 1 (EA)
Qty: I got 30 - 16 a side and I reused 2 old bolts
Fastenal Part No. (Sku): 0161882
Manufacturer: Fastenal Approved Vendor
UNSPSC Code: 31161600
Category: Fasteners
Bolts
Flange Bolts
Also, Nick's header install write up is helpful on:
http://www.pnwzr1.net/PNWZR1.htm
And I love and identify with the commercial (valvoline I think) about how happiness is working under your car on cardboard over concrete. That's me!
Drifting
Joined: Jan 2002
Posts: 1,403
Likes: 3
From: Columbia Maryland
I talked with Marc and there is no problem with extending the harnesses this way. He also mentioned that you can splice the wires, BUT, you can only use the butt connectors with no tape or soldering. If you do it that way you would more than likely end up with misture problems.
Burning Brakes
Joined: Jun 2001
Posts: 1,150
Likes: 1
From: Auburn WA
John,
How soon we forget? See my write-up at www.pnwzr1.net.
I used the factory GM weatherpack connectors, sourced a a local GM warehouse. They worked great, look professional, are totally sealed up and will be problem free.
Good luck.
How soon we forget? See my write-up at www.pnwzr1.net.
I used the factory GM weatherpack connectors, sourced a a local GM warehouse. They worked great, look professional, are totally sealed up and will be problem free.
Good luck.
