 911 Valve Adjusters for my Type-4 2.0L?, Good Idea or Bad Idea? |
|
|
|
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. |
|
|
| ericread |
 Jul 30 2009, 03:49 PM
Post
#1
|
|
The Viper Blue 914  Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California  |
Somewhere earlier I saw a comment that Jake had recommended using 911 Valve Adjusters in the Type-4 engine... Or maybe he had recommended against it. I can't remember.
Anybody out there have experience in this? My adjusters and adjuster nuts were pretty gnarled when I got my car a few years ago. Now with bi-monthly adjustments, I'm looking to replace them. Will the 911 adjusters fit the existing rocker arms? Do I need the same nuts? If I go ahead with this, should my properly adjusted valves run quieter? And is there any advantage to replacing the springs? As a result of some moderate leaky valve guides, my plans are to have the heads re-built this winter. Should I wait until the heads are rebuilt, or is there any reason I shouldn't go ahead with the adjusters, nuts and springs right now? Any thoughts? My thanks. Eric Read |
   |
 
|
  |
Replies
| mgphoto |
Apr 11 2011, 09:02 PM
Post
#2
|
|
"If there is a mistake it will find me" Group: Members Posts: 1,364 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
I have a few questions, one is about valve rotation. I thought the valve adjusters are supposed to be off center of the valve stem? This I believe was to rotate the valve slightly so the valve and seat would not collect carbon and repeated wear in the same places. With the 911 swivel adjusters what will make the valves rotate if the swivel adjuster can rotate instead?
Also is the valve lash the same with the 911 adjusters in place? Thanks in advance for your responses. Mike ps: Is .060 enough to remove from the underside of the rocker arm? See photo below.  |
|
|
|
Posts in this topic
ericread 911 Valve Adjusters for my Type-4 2.0L? Jul 30 2009, 03:49 PM
orange914 you'll need a set of 1.7 rockers and then you ... Jul 30 2009, 04:32 PM
dlestep
you'll need a set of 1.7 rockers and then you... Jul 30 2009, 07:58 PM
orange914
you'll need a set of 1.7 rockers and then yo... Aug 2 2009, 10:39 PM craig downs
you'll need a set of 1.7 rockers and then you... Aug 3 2009, 10:24 PM neil30076 OT - can't help on the adjusters, but i like t... Jul 30 2009, 04:47 PM ericread
OT - can't help on the adjusters, but i like ... Jul 30 2009, 06:00 PM Jake Raby Our SCCA FP race car is also Viper Blue
http://www... Jul 30 2009, 07:33 PM ericread
Our SCCA FP race car is also Viper Blue
http://ww... Aug 3 2009, 01:03 PM kconway Doesn't this potentially change the valvetrai... Aug 3 2009, 02:38 PM jhadler
Doesn't this potentially change the valvetra... Aug 3 2009, 02:46 PM Sleepin
[quote name='kconway' post='1198861' date='Aug 3 ... Aug 3 2009, 11:05 PM type11969
Doesn't this potentially change the valvetra... Aug 4 2009, 10:05 AM ericread
[quote name='kconway' post='1198861' date='Aug 3 ... Aug 4 2009, 02:05 PM type11969 It does not need to be precise, you can do it with... Aug 4 2009, 02:11 PM ericread
It does not need to be precise, you can do it wit... Aug 4 2009, 02:33 PM jhadler Okay, so if I'm reading the comments right, th... Aug 4 2009, 02:39 PM ericread
Okay, so if I'm reading the comments right, t... Aug 4 2009, 03:02 PM craig downs Umm you really need to redo the valve geometry. An... Aug 5 2009, 01:03 AM type11969 I disagree. If you grind the rockers down ~.06... Aug 5 2009, 07:48 AM Jake Raby I would say the geometry would need to be verified... Aug 5 2009, 07:52 AM type11969 When you say "work properly", what do yo... Aug 5 2009, 08:16 AM craig downs As Jake mentioned you need to check it. You are ma... Aug 5 2009, 07:34 PM type11969 I urge you to draw it out. If you don't have t... Aug 5 2009, 08:07 PM craig downs The goal of proper valve geometry is the aliment o... Aug 6 2009, 01:10 AM type11969 Okay, if you won't draw it out . . .
Crude d... Aug 6 2009, 09:19 AM cdadaa What is the desired "finish" measurement... Feb 14 2010, 01:35 PM bandjoey Way to go. Add these drawings to the save the tec... Feb 14 2010, 01:51 PM Chris Hamilton If you need something a bit stronger than the 911 ... Feb 15 2010, 03:10 PM bandjoey http://www.914world.com/bbs2/index.php?showtopic=1... Feb 15 2010, 03:47 PM underthetire I here the CB ones are ok. It's the empi and b... Feb 15 2010, 03:51 PM Cap'n Krusty
I here the CB ones are ok. It's the empi and ... Feb 15 2010, 04:03 PM Chris Hamilton
The Porsche ones are good. First class. The CB... Feb 15 2010, 05:19 PM ME733 .............I wonder If , when you compair the tw... Feb 15 2010, 04:01 PM bandjoey Sorry double post Feb 15 2010, 04:03 PM ME733 ............Keep Looking.......and compairing........ Feb 15 2010, 04:13 PM Cap'n Krusty In 37 years of working on 911s, I've never see... Feb 15 2010, 08:24 PM Chris Hamilton So are you talking about using these things in sto... Feb 15 2010, 09:33 PM Marty Yeoman
Any comments on using these as opposed to ... Mar 31 2011, 10:30 AM Marty Yeoman Bump Apr 1 2011, 05:14 PM nathansnathan Those are the same price as the adjusters Jake is... Apr 4 2011, 04:25 PM Jake Raby The difference is we aren't parts whores. We s... Apr 4 2011, 06:12 PM type11969 Clearance them enough so that the feet don't b... Apr 11 2011, 09:25 PM |
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 4th November 2024 - 03:02 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.