Valve guide position 1.7 liter heads, Cylinder head work |
|
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. |
|
Valve guide position 1.7 liter heads, Cylinder head work |
pgollender |
May 19 2017, 08:30 AM
Post
#1
|
Member Group: Members Posts: 193 Joined: 5-July 11 From: Sacramento Member No.: 13,281 Region Association: Northern California |
After hot tanking I noticed different lengths on my exhaust valve guides. Between the four exhaust guides ( two heads) the length of the top of the guide out of the head varied by 2 mm. Is this a problem or just sloppy work from P.O. ? Does it matter ? |
pgollender |
May 21 2017, 08:38 AM
Post
#2
|
Member Group: Members Posts: 193 Joined: 5-July 11 From: Sacramento Member No.: 13,281 Region Association: Northern California |
[/quote]
Guides may appear "tight" to you, but as soon as the head is warm they are loose. Sitting down flush like that is not normal. [/quote] Thanks Mark, I didn't know that about the guides. Understanding the problem helps me to evaluate the work expected from the machine shop or in the future when buying the next set of heads what to look out for. Or in case of failure, the etiology of the problem. |
Lo-Fi Version | Time is now: 1st June 2024 - 06:29 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 ... |