Porsche 996 TT, Repair Manual

Page: 649 / 2099

Fasten special tooldial gauge holder VW 387 onto the underneath of the camshaft housing (cylinder bank
1−3). Flanges with thread M 8 have been provided or this procedure.
3. Align tracer pin with push rod, set the dial gauge with pre−tension
to 0.
4. Connect special tool pressure gauge 9103/2 . Connect hand pump and pressure gauge together with
branch pieces. Hang pressure gauge on stabilizer.
5. Remove vacuum hoses from the control box:
Push a small screwdriver between connection nipple and vacuum hose. •
Widen vacuum hose a little and spray in e.g. silicone spray at the same time. •
Pull off vacuum hose.
•
6. Connect connecting piece (shop−made) and Tecalan line (shop−made) onto the control box and connect
with the pressure gauge.
7. Produce overpressure of 0.5 bar with special tool tester 9160/1 . Read off pressure on special tool pressure
gauge 9103/2 . Have a second person read off the stroke of the push rod on the dial gauge at the same
time.
Prescribed stroke: 4 ± 0.5 mm.
Adjusting
1. Remove safety bracket.
2. Twist adjusting nut
accordingly.
Turning clockwise − stroke smaller.
Turning counter−clockwise − stroke larger.
3. Fit safety bracket again.
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Check and adjust (cylinder bank 4 − 6)
einordnung
Test 586