Aligning Timing-Case Cover Using A Dial Gauge

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Information

The timing-case cover must not project over the crankcase. The maximum offset is → Length: 0.1 mm .

Insert the dial gauge into the universal dial gauge bracket and position it so that the dial gauge has a preload of about 1 mm. → see Fig 1

Fig 1: Adjusting Preload
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Set dial gauge scale to 0. To do this, place the dial gauge bracket on a completely flat surface (e.g. crankcase flange) and turn the dial gauge scale until the pointer is at 0. → see Fig 2

Fig 2: Adjusting Dial Gauge Scale To Zero
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Measure offset. To do this, push with the bracket starting from the lower part of the crankcase towards the timing-case cover (the base of the dial gauge bracket is not located on the same component as the dial gauge probe) and measure the offset → see Fig 3. The timing-case cover must not be set back by more than 0.1 mm. It must not project out.

Fig 3: Measuring Timing-Case Cover Offset
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Align the timing-case covers by tapping lightly with a rubber hammer. → see Fig 4

Fig 4: Aligning Timing-Case Cover
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Once you have aligned the timing-case cover, tighten two fastening screws on the left and right of the timing-case cover base hand-tight. Then check the position of the timing-case cover again using the dial gauge. → see Fig 5

Fig 5: Measuring Timing-Case Cover Offset
Courtesy of PORSCHE CARS NORTH AMERICA, INC.