Engine Valve Guide Wear on Porsche 911

Engine issues related to valve guide wear are common. Oil consumption, smoking at first startup, and valve train noise are all symptomatic of loose guides and worn valve stems. The valve train is complex and should be thoroughly inspected if a problem arises.

RepairPal Verified
Average mileage: (–)
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998
9 people reported this problem
0 people shared problem details
Related Items:
Valve cover leaks are common.
Over time, the engine can leak oil at various locations. Early-production vehicles require engi...
If the engine won't turn over or cuts out at seemingly random times, it may be a failing relay...
Abnormal noises from the intermediate shaft area may be signs of impending engine failure, don'...
I had my water expansion tank replaced, two weeks later the CEL lit and had the Porsche Dealers...

Related Content