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 )

> Why did my rockers break? 6 cylinder
David Stowers
post May 16 2022, 09:32 AM
Post #1


Member
**

Group: Members
Posts: 99
Joined: 28-June 12
From: UK
Member No.: 14,613
Region Association: None



Hi all,
All 3 exhaust rockers broke on one side (4,5,6) when I started my engine for the first rime after cam and rocker re grind.
What’s the likely cause here folks?
Thank you
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
David Stowers   Why did my rockers break? 6 cylinder   May 16 2022, 09:32 AM
Superhawk996   Lots of possibilities. None of them good. I...   May 16 2022, 09:38 AM
David Stowers   Lots of possibilities. None of them good. I...   May 16 2022, 09:42 AM
nditiz1   At what point did they break? Did the cam timing ...   May 16 2022, 10:02 AM
brant   I've been told in the past that some year of T...   May 16 2022, 10:52 AM
porschetub   I've been told in the past that some year of ...   May 16 2022, 07:03 PM
rgalla9146   :agree: all of the above. Consider yourself a...   May 16 2022, 04:02 PM
mb911   Ugh what a sick feeling. My guess is wrong cam tim...   May 16 2022, 04:31 PM
euro911   :agree:   May 16 2022, 05:04 PM
fixer34   Assuming the pistons hit the exhaust valves while ...   May 16 2022, 05:44 PM
r_towle   The valve hit the piston. Either valve timing or c...   May 16 2022, 06:07 PM
sixnotfour   Bad News, you bumped cast pistons....   May 16 2022, 09:07 PM
mepstein   cam timed 180 degrees out? It happens.   May 16 2022, 09:19 PM
sixnotfour   cam timed 180 degrees out? It happens. :beer2:   May 16 2022, 09:44 PM
Retroracer   Like @FIxer34 suggested, missing or sheared cam ...   May 17 2022, 07:18 AM
burton73   Cam timing on my 6 This is not so easy and you ...   May 17 2022, 10:43 AM
sixnotfour   Many shops have the tools ,but have done 180 out a...   May 17 2022, 08:15 PM
Luke M   Have you checked the valve to piston clearance ? T...   May 18 2022, 08:13 AM
ClayPerrine   I have lots of experience with setting the cam tim...   May 18 2022, 11:04 AM
Jake Raby   I have lots of experience with setting the cam ti...   May 18 2022, 08:01 PM


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: 25th May 2024 - 03:16 AM