Camshaft - Basic Setting Procedure

9213porsche01

March 24, 1992



Model Group
968 1

Part Identifier Number
1505 9205


Subject: Camshaft Basic Setting


ATTENTION: Service Manager/Service Technician

Models Affected: 968


Concern: In some early production engines, it is possible that the camshaft chain drive gears are not indexed with casting tabs or paint dots.

Work Procedure: To be certain the camshafts are installed correctly in the timing chain (basic setting), proceed as follows:

Camshafts with casting tabs or paint dots

The timing chain of the 968 has two dark blue colored links on one side. During assembly, the paint markings or casting tabs of the camshafts must be lined up with the dark blue chain links. The number of links from the intake camshaft marking to the exhaust camshaft marking is seven (7). The casting tabs are located in front of the drive gears (driving direction).

Camshafts without casting tabs or paint dots





The cam lobes of cylinder # 1 intake and exhaust camshafts must face each other at an angle of 45~ (Figure 1). The dark blue chain links must be positioned at the upper center of the chain gears. If a camshaft is one tooth off, the fine valve timing adjustment value cannot be reached.

Checking camshaft timing is described in the 968 Workshop Manual, Volume 1, pages 15-4 through 15-6.

Warranty Information: Damage Code: 150 510 000 1

Labor Operation:

15050500 Check and Adjust Camshafts 240 Time Units