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Oil Level Sensor Calibration
 
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Pelican Technical Article:

Oil Level Sensor Calibration

Tools:

Floor jack, Jack stand, 8mm and 10mm sockets, drive ratchet, Phillips screwdriver

Applicable Models:

Porsche 993 Carrera (1995-98)
Porsche 993 Carrera 4 (1995-98)
Porsche 993 Carrera 4S (1996-98)
Porsche 993 Carrera S (1998)
Porsche 993 Targa (1996-98)
Porsche 993 Turbo (1996-97)

Parts Required:

Oil level sensor gasket,

Hot Tip:

Combine this project with your next oil change

Performance Gain:

Confidence in the accuracy of your oil level gauge reading, better understanding of all three gauges related to the engine oil

The oil level gauge is in the same instrument as the fuel level gauge.
Figure 1

The oil level gauge is in the same instrument as the fuel level gauge.

This sticker on the engine bay sill tells how to check the oil, and the difference between the two marks on the dipstick--the same range the oil level gauge measures.
Figure 2

This sticker on the engine bay sill tells how to check the oil, and the difference between the two marks on the dipstick--the same range the oil level gauge measures.

Remove the two screws shown by the yellow arrows to begin removal of the right rear fender liner.
Figure 3

Remove the two screws shown by the yellow arrows to begin removal of the right rear fender liner.

Remove this 10mm nut (yellow arrow).
Figure 4

Remove this 10mm nut (yellow arrow).

Remove these two screws and another 10mm nut (yellow arrows), now the front half of the fender liner is free to be removed.
Figure 5

Remove these two screws and another 10mm nut (yellow arrows), now the front half of the fender liner is free to be removed.

Clean around the sensor, then remove the six 8mm nuts (yellow arrow, one shown).
Figure 6

Clean around the sensor, then remove the six 8mm nuts (yellow arrow, one shown). Now the sensor can be withdrawn, rotating it 90 degrees clockwise so the float can clear the opening in the oil tank.

Bend the float arm (yellow arrow) to adjust the gauge reading, at the point shown by the yellow arrow.
Figure 7

Bend the float arm (yellow arrow) to adjust the gauge reading, at the point shown by the yellow arrow. Be careful not to damage the delicate sensor mechanism.

This instrument contains both the oil temperature and oil pressure gauges.
Figure 8

This instrument contains both the oil temperature and oil pressure gauges.

These two white tic marks (marks are black (yellow arrows) at the lower end of the temperature gauge show the Warm-up Zone, from zero or ambient temperature to 120F.
Figure 9

These two white tic marks (marks are black (yellow arrows) at the lower end of the temperature gauge show the "Warm-up Zone", from zero or ambient temperature to 120F. Keep the engine RPM below 4500 in this zone.

The lower mark (yellow arrow) shows 200F and the upper arrow (red arrow) shows 250F.
Figure 10

The lower mark (yellow arrow) shows 200F and the upper arrow (red arrow) shows 250F.

The beginning of this red band is 300F (yellow arrow).
Figure 11

The beginning of this red band is 300F (yellow arrow). If the reading reaches that point, shut it off and investigate to find the cause--it could be low oil level, low oil pressure, or a broken fan belt.

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Page last updated: Sun 4/23/2017 02:45:39 AM