 Valve adjustment question, Valve clearance doesn't seem right |
|
|
|
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. |
|
|
| tag |
 May 23 2009, 10:15 AM
Post
#1
|
|
Member  Group: Members Posts: 67 Joined: 5-December 08 From: Point, Texas Member No.: 9,815 Region Association: None  |
Hey guys,
I was adjusting my valves and noticed one of them was way off (see pic). (IMG:style_emoticons/default/WTF.gif) I screwed in the adjustment screw to take up the slack for this picture so you could see how much it took to tighten the valve. When i purchased this car it seemed to be running fine especially after a tune-up just a little noisy, this is the first time I've tried to adjust the valves and i figured this would be a good time as any sense I was already removing the tin to clean out the debris. Please break it to me gently (IMG:style_emoticons/default/icon8.gif) do I have major problem? See picture of the intake on No. 1  |
   |
 
|
  |
Replies
| cwpeden |
May 23 2009, 12:05 PM
Post
#2
|
|
Great White North, huh? Group: Members Posts: 916 Joined: 20-August 06 From: Victoria BC Member No.: 6,693 Region Association: Canada |
To me it looks as if the other three arent in far enough. All of mine look like your oddball. (73 2.0)
Check the nuts that hold the rocker shaft. That one looks to be out a bit. |
|
|
|
| tag |
May 23 2009, 12:12 PM
Post
#3
|
|
Member Group: Members Posts: 67 Joined: 5-December 08 From: Point, Texas Member No.: 9,815 Region Association: None |
QUOTE(cwpeden @ May 23 2009, 10:05 AM)  To me it looks as if the other three arent in far enough. All of mine look like your oddball. (73 2.0) Check the nuts that hold the rocker shaft. That one looks to be out a bit. Okay I'm checking now. If their hydraulic do have to pull back on the rocker to see how much play you have? |
|
|
|
| Cap'n Krusty |
May 23 2009, 12:39 PM
Post
#4
|
|
Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
QUOTE(tag @ May 23 2009, 11:12 AM) QUOTE(cwpeden @ May 23 2009, 10:05 AM) To me it looks as if the other three arent in far enough. All of mine look like your oddball. (73 2.0) Check the nuts that hold the rocker shaft. That one looks to be out a bit. Okay I'm checking now. If their hydraulic do have to pull back on the rocker to see how much play you have? No. The adjusters would be preloaded. The adjustment you describe is NOT normal. However, how bad it is can vary. Might wanna remove the rocker stands and check the spring heights, but I don't think that's your problem. Generally, if the seat is moving around, it'll be pounded into the head, moving the valve outward. Not always, but it's a good clue. If it ran OK and didn't make a horrendous clacking sound, the seat has a good chance of being OK. You can tell if you have hydraulic lifters by getting a small and very bright flashlight and looking down the PR tube at the lifters. Hyd lifters have a squarish wire clip, visible on 3 sides of the inner tip of the pushrod. Report back. The Cap'n |
|
|
|
| tag |
May 23 2009, 01:08 PM
Post
#5
|
|
Member Group: Members Posts: 67 Joined: 5-December 08 From: Point, Texas Member No.: 9,815 Region Association: None |
QUOTE(Cap'n Krusty @ May 23 2009, 10:39 AM) QUOTE(tag @ May 23 2009, 11:12 AM) QUOTE(cwpeden @ May 23 2009, 10:05 AM) To me it looks as if the other three arent in far enough. All of mine look like your oddball. (73 2.0) Check the nuts that hold the rocker shaft. That one looks to be out a bit. Okay I'm checking now. If their hydraulic do have to pull back on the rocker to see how much play you have? No. The adjusters would be preloaded. The adjustment you describe is NOT normal. However, how bad it is can vary. Might wanna remove the rocker stands and check the spring heights, but I don't think that's your problem. Generally, if the seat is moving around, it'll be pounded into the head, moving the valve outward. Not always, but it's a good clue. If it ran OK and didn't make a horrendous clacking sound, the seat has a good chance of being OK. You can tell if you have hydraulic lifters by getting a small and very bright flashlight and looking down the PR tube at the lifters. Hyd lifters have a squarish wire clip, visible on 3 sides of the inner tip of the pushrod. Report back. The Cap'n Hey Cap'n, Your saying the rocker is preloaded (spring), that is what I'm talking about, I pull back the rocker and screw in the adjuster nut to .008 and .006. I went through your "how to" three times and every time i had to adjust the adjusters in alittle more. See pics  |
|
|
|
Posts in this topic
tag Valve adjustment question May 23 2009, 10:15 AM
jaxdream Looks ok to me , just got to ajust for the clearan... May 23 2009, 10:24 AM
tag
Looks ok to me , just got to ajust for the cleara... May 23 2009, 10:38 AM Dave_Darling It looks to me as if the whole valve/spring/retain... May 23 2009, 10:46 AM tag
It looks to me as if the whole valve/spring/retai... May 23 2009, 10:56 AM Cap'n Krusty The nuts after 1973 are often 14mm. Did you use T... May 23 2009, 10:47 AM tag
The nuts after 1973 are often 14mm. Did you use ... May 23 2009, 11:14 AM underthetire
The nuts after 1973 are often 14mm. Did you use... May 23 2009, 11:58 AM tag
[quote name='Cap'n Krusty' post='1172227' dat... May 23 2009, 01:09 PM cwpeden Ok, optical illusion. May 23 2009, 01:18 PM Cap'n Krusty We have a problem here. You've jumped to a co... May 23 2009, 01:37 PM tag
We have a problem here. You've jumped to a c... May 23 2009, 02:37 PM Cap'n Krusty Hard for me to tell from your (pretty good!) p... May 23 2009, 06:01 PM tag
Hard for me to tell from your (pretty good!) ... May 23 2009, 06:40 PM tag
[quote name='Cap'n Krusty' post='1172294' dat... May 23 2009, 08:55 PM roadster fan Hard to tell in the top pic, but the bottom one lo... May 23 2009, 06:20 PM McMark Yup. Hydraulics. The ratwell site has a good wri... May 23 2009, 09:05 PM jcd914 There is s trick to adjusting hydraulic lifters th... May 23 2009, 09:49 PM Cap'n Krusty Isn't that what I said? The Cap'n May 24 2009, 12:29 AM tag Thanks Cap'n, Jim and McMark, I'll re-adju... May 24 2009, 06:57 AM tag Well I've got it all back together, now it run... May 25 2009, 03:59 PM Cupomeat This does not sound like a valve adjustment issue.... May 26 2009, 02:01 PM tag
This does not sound like a valve adjustment issue... May 26 2009, 06:35 PM Cap'n Krusty Is the MPS hose plugged into the intake manifold? ... May 26 2009, 06:50 PM tag
Is the MPS hose plugged into the intake manifold?... May 26 2009, 07:13 PM tag
Is the MPS hose plugged into the intake manifold?... May 26 2009, 07:14 PM orange914
Is the MPS hose plugged into the intake manifold?... May 26 2009, 07:39 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 2nd June 2024 - 06:52 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.