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 )

> Determining proper valve clearance, on a custom build
3liter914-6
post Oct 4 2007, 10:29 PM
Post #1


Master of Clueless Posts
**

Group: Benefactors
Posts: 310
Joined: 12-October 03
From: State College, PA
Member No.: 1,238
Region Association: MidAtlantic Region



Almost 2 years ago, my brother purchased a 2270 for his 914. I installed it, but really haven't had a chance to run it until this week. On startup, there's a little ticking noise that sounds like a loose valve to me, so I wanted to make sure I have the clearances set correctly. It's been so long since I set them that I don't remember what spec I used, but thinking about it now, I'm not sure what spec to use.

It's a 2270cc engine built by a member of this board that I don't think visits/posts much anymore.

Here are the specs I was able to piece together from old posts here and elsewhere:
QUOTE

2270, 78.4x96, T1 rods - Scat I-beams. Reduced base-circle 163/86B webcam. 9.1:1
1.7L rockers, 911 valve adjusters, with about 60-thou taken off for clearance.
1.8L head with (48x38) valves


So, what spec do I use to adjust the valves? It's a 1.8L head, so do I use that? or...? I guess the question is, what determines what valve clearance you use on a non-stock engine.

Thanks for any information!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
Aaron Cox
post Oct 4 2007, 11:36 PM
Post #2


Professional Lawn Dart
***************

Group: Retired Admin
Posts: 24,541
Joined: 1-February 03
From: Corona, CA
Member No.: 219
Region Association: Southern California



(IMG:style_emoticons/default/agree.gif) what she ^^ said.

Im with alice.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
3liter914-6
post Oct 5 2007, 11:25 AM
Post #3


Master of Clueless Posts
**

Group: Benefactors
Posts: 310
Joined: 12-October 03
From: State College, PA
Member No.: 1,238
Region Association: MidAtlantic Region



Thanks for the quick responses guys. Knowing that it came down to the pushrods, I was find a post describing which ones he used (Aircooled.net's HD aluminum). They say to set them at .006, so I've got the feeler gauges, and I'm headed out there. I'll do a sanity check to make sure they're the rods I expect, but I should be good.

Thanks again.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


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: 10th May 2025 - 04:52 AM