What's this tube on my OBX Header (Passenger side)? - ZR-1 Net Registry Forums

RussMcB · 09-07-2015

I bought a lightly used set of OBX headers and they are somewhat installed.

On the passenger side there is a tube and I'm not sure what it's for, and what I need to do with it. It's 3-4" long, about .75" diameter, attached to one of the primary tubes, pointing towards the front of the car.

I can post a pic if necessary.

I have removed the air pump, so if it's related to that, I guess I need to plug it. If so, any suggestions on how folks have plugged it (other than removing the header and welding a plug)?

Thanks.

efnfast · 09-07-2015

It's probably for the air pump. I believe a 3/4" NPT (pipe) plug will fit. - Steve

RussMcB · 09-07-2015

Thanks, Steve.

Here's a pic.

Demps · 09-07-2015

EGR takeoff for late models.
Ted

Karl · 09-07-2015

Quote:

Originally Posted by Demps

EGR takeoff for late models.
Ted

Yep mine is blocked off.

efnfast · 09-08-2015

Russ, is that just left open?
Doesn't look threaded. Not sure how you'll plug that.

RussMcB · 09-08-2015

Quote:

Originally Posted by efnfast

Russ, is that just left open?
Doesn't look threaded. Not sure how you'll plug that.

You're right, there are no threads. I could create threads but I'm probably going to remove the header and plug the hole via weld.

efnfast · 09-08-2015

Quote:

Originally Posted by RussMcB

You're right, there are no threads. I could create threads but I'm probably going to remove the header and plug the hole via weld.

That would certainly be the best option.

WVZR-1 · 09-08-2015

Quote:

Originally Posted by RussMcB

You're right, there are no threads. I could create threads but I'm probably going to remove the header and plug the hole via weld.

Why wouldn't you just "sweat" an appropriate cap over the tube or in the tube so as not to defeat it's purpose if resale ever became something you desired?

RussMcB · 09-08-2015

Quote:

Originally Posted by WVZR-1

Why wouldn't you just "sweat" an appropriate cap over the tube or in the tube so as not to defeat it's purpose if resale ever became something you desired?

I'm not too familiar with "sweating", but that's probably a good idea (to save the functionality). Thanks. I'll ponder how I might do that.

09-07-2015	#1
RussMcB Join Date: Jan 2015 Location: Marietta, GA USA Posts: 1,160	What's this tube on my OBX Header (Passenger side)? I bought a lightly used set of OBX headers and they are somewhat installed. On the passenger side there is a tube and I'm not sure what it's for, and what I need to do with it. It's 3-4" long, about .75" diameter, attached to one of the primary tubes, pointing towards the front of the car. I can post a pic if necessary. I have removed the air pump, so if it's related to that, I guess I need to plug it. If so, any suggestions on how folks have plugged it (other than removing the header and welding a plug)? Thanks. __________________ Russ McBride, [COLOR="Red"]Car Sold 8/2020[/COLOR] #1635, Marietta, GA USA, 1991 ZR-1, #766 (bought 1/1/2015) MS3-Pro, OBX, SW X-Pipe, Borla, Hurst, SLP, Goodyear F1 GS-D3, Kenwood. HOTB 2016Q3 [IMG]http://zr1.net/forum/picture.php?albumid=316&pictureid=2873[/IMG] [IMG]http://zr1.net/forum/picture.php?albumid=336&pictureid=2985[/IMG]

09-07-2015	#2
efnfast Join Date: Nov 2011 Location: Dunbarton NH Posts: 7,262	Re: What's this tube on my OBX Header (Passenger side)? It's probably for the air pump. I believe a 3/4" NPT (pipe) plug will fit. - Steve

09-07-2015	#3
RussMcB Join Date: Jan 2015 Location: Marietta, GA USA Posts: 1,160	Re: What's this tube on my OBX Header (Passenger side)? Thanks, Steve. Here's a pic.

09-07-2015	#4
Demps Join Date: Jan 2006 Location: Niceville Posts: 997	Re: What's this tube on my OBX Header (Passenger side)? EGR takeoff for late models. Ted

09-08-2015	#6
efnfast Join Date: Nov 2011 Location: Dunbarton NH Posts: 7,262	Re: What's this tube on my OBX Header (Passenger side)? Russ, is that just left open? Doesn't look threaded. Not sure how you'll plug that.