Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> vlave adjustment, any good how to advice for a valve adjustment
mt 914
post Aug 23 2008, 07:38 PM
Post #1


Newbie
*

Group: Members
Posts: 2
Joined: 17-August 08
From: montana
Member No.: 9,429
Region Association: None



I have been working on my 1974 1.8 L 914 foe 4 years and finally got it so it is road worthy. I need to adjust the valves but need a good teck article or other info to do it. any help would be great (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies(1 - 6)
toon1
post Aug 23 2008, 07:56 PM
Post #2


Senior Member
***

Group: Members
Posts: 1,849
Joined: 29-October 05
From: tracy,ca
Member No.: 5,022



look in the classics section on this site there is a the "capn's valve adjustment proceedure".

The one I use is to put the gearbox is 5th. jack up one side of the car, remove both valve covers. Spin the wheel that is in the air till you see a rocker depress all the way( it does not matter what rocker it is), adjust the valve lash and the opposite side of the rocker that is depressed.

I.E. if #1 ex. is depressed all the way, adjust the #3ex valve lash

Internally, the valves opposite each other share a common cam lobe. If one is fully depressed, the other is on the back of the cam.

It takes a bit longer thatn the capn's proceedure but it can still be done in about 20-25mins.

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
lotus_65
post Aug 23 2008, 08:01 PM
Post #3


Senior Member
***

Group: Members
Posts: 1,608
Joined: 21-March 05
From: minneapolis, mn
Member No.: 3,795
Region Association: Northstar Region



another resource:
http://www.pelicanparts.com/914/914world.htm
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type47
post Aug 23 2008, 10:04 PM
Post #4


Viermeister
****

Group: Members
Posts: 4,254
Joined: 7-August 03
From: Vienna, VA
Member No.: 994
Region Association: MidAtlantic Region



stubby screwdriver and a 14mm stubby wrench and small hands. the only place i remember a 14mm anything on a 914 is the jam nut on the valve adjust screws.

hah! the above guys missed:

(IMG:style_emoticons/default/welcome.png)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SGB
post Aug 23 2008, 10:06 PM
Post #5


just visiting
****

Group: Members
Posts: 4,086
Joined: 8-March 03
From: Huntsville, AL
Member No.: 404
Region Association: South East States



I bought a remote starter at harbor freight and use the procedure written at the end of the pelicanparts reference above. Which is ALSO just like toon says: "adjusting the valve known to be totally on the base of the cam". The pelican parts article just gives the numbers in a table (that I have tacked to the wall) like "when these two valves are rocking, you can adjust these two other valves", walking you all the way up and down through each set of valves- since you can adjust two at a time. The remote starter was $12, and I take the tires off so I can;t turn a wheel.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SGB
post Aug 23 2008, 10:09 PM
Post #6


just visiting
****

Group: Members
Posts: 4,086
Joined: 8-March 03
From: Huntsville, AL
Member No.: 404
Region Association: South East States



I have 13mm locknuts on mine. Maybe because they are swivil feet screws? So it is possible to be 13 or 14 mm aparently. The 911 valve adjust (swivil-feetz) screws are a pretty common upgrade
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dave_Darling
post Aug 24 2008, 01:23 AM
Post #7


914 Idiot
**********

Group: Members
Posts: 14,991
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



Early rocker arms use 13mm jam-nuts; later ones use 14mm ones. I think the change happens at the start of the 73 model year, but I could be wrong.

--DD
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 1st June 2024 - 01:47 PM