50
th
Anniversary
Ford Mustang Cobra Jet
Official Owners Manual
Techline 1-800-367-3788
Page 20
For rebuild and service see the complete engine Bill of Material (BOM) for the 5.2L
engine in the included supplemental document.
Compression and leak down tests should be performed periodically on the motor to
verify its health. These tests should be done with the engine warm.
•
Compression with the blower belt attached should be 140-150psi.
•
Leak down should be less than 15%.
If the engine does not pass these tests, further inspection is required. Contact Tech Line
or your engine builder with any questions.
6.2 Intercooler Drain, Flush, and Fill
Your 50
th
Anniversary Cobra Jet is equipped with an intercooling/charge air cooling
system that consists of three main components: a heat exchanger (within intake
manifold), an electric pump, and a water tank. This system cools the intake charge by
circulating fluid from the water tank to a heat exchanger installed downstream of the
supercharger.
The intercooler system is not equipped with a drain valve. In order to drain the system,
you must use a pump with a hose to pump the water out of the reservoir. It is
recommended to use a 12V bilge pump as shown in the figure below. You may use the
voltage outputs in the vehicle PDB in the engine bay to power the pump.
ATTENTION!
Your vehicle is shipped with a water/glycol mix in
both cooling systems
!