Piston damage, Is this piston toast? |
|
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. |
|
Piston damage, Is this piston toast? |
Phoenix914 |
Jan 4 2021, 12:25 PM
Post
#1
|
Member Group: Members Posts: 389 Joined: 6-December 06 From: Oviedo, FL Member No.: 7,322 Region Association: South East States |
Happy New Year!
I just cleaned up the pistons for my rebuild and found some pitting on one of them after all the carbon was removed. This piston was at #1 cylinder. Is it unusable? I'm certain they are NPR 96mm pistons from a late-80's rebuild. I already bought new rings! Any opinions would be appreciated. |
Superhawk996 |
Jan 4 2021, 01:29 PM
Post
#2
|
914 Guru Group: Members Posts: 5,906 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Its gone.
That piston appears to be victim of detonation. May have been running too high of compression ratio. Time to move on. Carefully check compression ratio on the rebuild. |
Lo-Fi Version | Time is now: 12th June 2024 - 02:51 AM |
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 ... |