Valve adjuster squashed |
|
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 adjuster squashed |
nditiz1 |
Jun 29 2020, 02:45 PM
Post
#1
|
Senior Member Group: Members Posts: 1,177 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region |
So doing a valve adjustment i found #3 intake to be very loose. I started to adjust and then found this. Why/how did this happen?
Also, why are my leakdown tests consistently 20% leaking through the case? Rings? I did it cold and the engine looks to be rebuilt from how clean the inside of the heads were. |
BillC |
Jun 29 2020, 03:05 PM
Post
#2
|
Senior Member Group: Members Posts: 533 Joined: 24-April 15 From: Silver Spring, MD Member No.: 18,667 Region Association: MidAtlantic Region |
My guess is that you got a defective adjuster screw that wasn't heat-treated properly. It's unusual for one of those to peen over like that, especially if there's no other damage in the valve train. Maybe it got beaten up when the valve lash opened up a bit.
If the leakdown is through the case, then it probably is the rings. Could be that they haven't seated properly, or maybe they're cracked. I have a borescope for checking the cylinders, if you'd like to drive down and borrow it -- you could check for scoring on the cylinder walls. |
Lo-Fi Version | Time is now: 17th April 2024 - 02:52 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 ... |