A.I.R Pump tube, elimination |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
A.I.R Pump tube, elimination |
JOEPROPER |
Feb 14 2018, 01:35 PM
Post
#1
|
The answer is "no" unless you ask... Group: Members Posts: 1,184 Joined: 21-November 15 From: White Plains New York Member No.: 19,387 Region Association: North East States |
So, I'm getting my '75 2.0L back together and want to eliminate the A.I.R system. What are guys doing to eliminate the tubes in the cylinder heads? Install and cap them off or install something to block off the passage in place of the tube?
|
jcd914 |
Feb 14 2018, 01:45 PM
Post
#2
|
Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
Easiest way is just to leave them in (or reinstall) and cap them.
You can plug the holes but it requires 10x1.0 bolts that are just the right length. Jim |
914werke |
Feb 14 2018, 03:19 PM
Post
#3
|
"I got blisters on me fingers" Group: Members Posts: 9,894 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
(IMG:style_emoticons/default/agree.gif)
Another problem is that if you've never had them appart, after 30+ yrs they are likely coked in place and you risk further work if they don't come out clean. |
bdstone914 |
Feb 14 2018, 03:21 PM
Post
#4
|
bdstone914 Group: Members Posts: 4,496 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
Easiest way is just to leave them in (or reinstall) and cap them. You can plug the holes but it requires 10x1.0 bolts that are just the right length. Jim I do not agree with leaving them in and capping them. When the smog antlers are not there holding the tubes they can back off. Had this happen more than once. The long tube on a shaking engine will loosen the threads. remove them and plug them. I think a 1/8 NPT tap works. Use red Loctite. Stock is a 10mm fine thread. Had a friend who blew out a tube and walked to the Home Depot to get a bolt to plug it. Bruce |
johnhora |
Feb 14 2018, 03:30 PM
Post
#5
|
Senior Member Group: Members Posts: 864 Joined: 7-January 03 From: Derby City KY Member No.: 107 Region Association: None |
actually you can use this rear brake part...
http://www.pmbperformance.com/catalog/item...563/9748923.htm also you can get them for 911 heads...same issue...two different styles |
JOEPROPER |
Feb 14 2018, 03:55 PM
Post
#6
|
The answer is "no" unless you ask... Group: Members Posts: 1,184 Joined: 21-November 15 From: White Plains New York Member No.: 19,387 Region Association: North East States |
All good information. Thanks for the help! Looks like I have some unexpected work ahead of me as Rich called it, one broken tube in the cylinder head. Will need to drill and try to extract. (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/headbang.gif)
|
DRPHIL914 |
Feb 15 2018, 08:31 AM
Post
#7
|
Dr. Phil Group: Members Posts: 5,752 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
not long after I bought my 75 I had a sudden rattle and loud noise- not knowing what it was it stopped, got a trailer and towed it down to the local shop- it didn't take too long for Bob to diagnose my problem- This AIR system was removed and one the bolts used to cap it had backed out- lodged somewhere against the tin making that rattling noise - before that I didn't know anything about a smog system- that's been atleast 5 years plus now- pretty sure they reinstalled that thing with loctite
|
Krieger |
Feb 15 2018, 09:51 AM
Post
#8
|
Advanced Member Group: Members Posts: 4,685 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None |
IIRC they are the same as the 911 plugs. Call Engine Builders supply in Reno.
|
Mueller |
Feb 15 2018, 10:01 AM
Post
#9
|
914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
Safety wire or make a locking tab to prevent them from backing out. I too had one back out while driving, made a bracket with a bent tab to stop it from turning.
|
JOEPROPER |
Feb 20 2018, 05:03 PM
Post
#10
|
The answer is "no" unless you ask... Group: Members Posts: 1,184 Joined: 21-November 15 From: White Plains New York Member No.: 19,387 Region Association: North East States |
I drilled and installed a Helicoil in the port. Was not as bad as thought it would be. Opened the hole a bit to fit the tap and the insert, red loctite and done. Now waiting for the PMB delivery so I can install the plugs described above.
Thanks for all the help! |
Lo-Fi Version | Time is now: 28th March 2024 - 03:09 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |