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Pelican Technical Article:

Shroud Air Diverter

Time:

1 hour1 hr

Tab:

$80

Talent:

**

Tools:

10mm wrench

Applicable Models:

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

Parts Required:

Air duct

Hot Tip:

It is a tight fit by the A/C compressor

Performance Gain:

Proper cooling

Complementary Modification:

Oil Change

The 993 is the last in a long line of great air cooled Porsches and as such owners need to be aware of all of the functions that air plays in the design and function of the entire vehicle. While small things like a torn or ripped air diverter may not seem like a big deal it can be and should be addressed like any other issue on your vehicle.

The shroud air diverters are well known to dry out and crack or separate along the top as the rubber gets old. While this may not seem like a big deal; especially to those that live in a constant warm weather climate, Porsche designed the duct to send air to the blower system but also to send a certain volume of air over the motor and you do not want all of this air pouring out the top of the shroud. If your diverter is ripped, replace it right away.

While it is possible to replace the diverter without removing the blower assembly I recommend removing it as it just takes a few minutes and makes the entire procedure easier.

The shroud air diverter (red arrow) sits right on top of the shroud and while it is possible to replace the diverter without removing the blower assembly (yellow arrow) I recommend removing, it as it just takes a few minutes and makes the entire procedure easier.
Figure 1

The shroud air diverter (red arrow) sits right on top of the shroud and while it is possible to replace the diverter without removing the blower assembly (yellow arrow) I recommend removing, it as it just takes a few minutes and makes the entire procedure easier. Please see our article on blower assembly replacement for additional instruction.

There are three 10mm bolts that hold the diverter to the shroud.
Figure 2

There are three 10mm bolts that hold the diverter to the shroud. Two of the bolts are on the left side of the motor (red arrows) and one is on the right by the A/C compressor. Use a 10mm wrench and fully remove the two bolts on the left side.

The bolt on the right side is squeezed down by the compressor bracket (red arrow), if you have fully removed the two left side bolts you can just loosen the right side bolt and slip the diverter back and out.
Figure 3

The bolt on the right side is squeezed down by the compressor bracket (red arrow), if you have fully removed the two left side bolts you can just loosen the right side bolt and slip the diverter back and out.

With the left side bolts removed and the right side lose you can slightly rotate the diverter and lift it up and out (red arrow).
Figure 4

With the left side bolts removed and the right side lose you can slightly rotate the diverter and lift it up and out (red arrow).

Figure 5

While the diverter is out it is a good time to have a look inside the shroud for any potential problems like debris or oil leaks

Installation is the reverse of removal.
Figure 6

Installation is the reverse of removal. When installing the diverter make sure that the three clips (red arrows) clip inside the shroud.

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