West Coast Fiero Precision balanced Flywheel

Oil Cooler bypass:

Eliminates the unsightly and unsafe cutting and hose clamping of the oil lines when bypassing the oil cooler.
These lines can carry up to 80 lbs. pressure and can cause problems if not properly dealt with. It also enables you to install
extra sensors, if so desired.

Picture at left shows the bypass valve removed and the drill in the bypass channel after drilling.

Picture at left shows the drilling out of the bypass channel to increase the oil flow to the engine oil
galleries.

Note the angle of the drill as it enters the bypass channel. It should be aimed in a direction that
is the same as the bypass channel at the start of drilling. The drill will follow the irregular shape of
the bypass channel, making it larger and round.

View of the O-Ring installed into the inlet or outlet of the Oil cooler hose connectors just before
installation of the plugs.

View of the bypass plugs installed and tightened to approx. 12 inch/pounds (or about a half turn after
seating on the O-Ring.)

Picture of the Oil cooler line plugs with the accompanying O-Rings.

Picture of specially sharpened drill to drill the oil bypass channel. This sharpened drill will not
dig or pull into the part while you are drilling the channel out. Apply only gentle pressure
while drilling the channel. Do not apply force!

Picture shows the bypass plugs installed with optional oil-pressure and oil-temperature attachments
if so desired. These plugs may be drilled and tapped by installer to add these additional components.

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