Thread: 911 engine knocking noise
View Single Post
Eagledriver Eagledriver is offline
Registered
 
Join Date: May 2003
Posts: 3,346
Sounds like a single valve clack. One valve extremely loose. Tenstoners make more of a machine gun sound.

-Andy
__________________
72 Carrera RS replica, Spec 911 racer
Old 02-24-2021, 06:44 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)