PCM HO303 MPI Owner's Operation And Maintenance Manual page 42

ENGINE MAINTENANCE - 11
3. Remove the cap from the degas bottle.
Open the heat exchanger bleed valve and
keep fi lling until solid liquid is achieved
from the drain hose.
Note: Make sure the drain hose is uncoiled
and fl owing freely.
Note: A plug may have to be removed from
the end of the drain hose.
4. Add 50/50 mixture of Dexcool, or
equivalent, to the degas bottle.Keep
adding to the bottle until solid liquid
comes out the drain hose, making sure all
air is purged.
Note: Keeping the bottle fi lled to the top,
or raising the bottle above the bracket, will
accelerate the fi lling process.
5. Once solid liquid is achieved, close the
bleed valve.
6. Open up the heater ball valve near the
thermostat housing.
Note: A plug may have to be removed if no
heater hose was previously connected here.
7. Once solid liquid is achieved, close the
ball valve.
8. Using a 7/32" allen head, remove the
port side exhaust manifold bleeder plug.
Keep adding to the bottle until solid liquid
comes out the top of the manifold, making
sure all air is purged.
9. Once solid liquid is achieved, install and
tighten bleeder plug.
10. Repeat steps 7 and 8 for starboard
manifold.
38
Heater Ball
Valve
Port Side
Manifold
Bleeder
L510010-11
Heat Exchanger Bleed Valve
(uncoil hose prior to bleeding)
Starboard
Side Manifold
Bleeder