Honda Prelude 1993 Service Manual page 243

9 .
H23Al engine:
Manual:
3.8 X (4'O US qt, 3.3 lmp qrl
Automatic: 3.7 t {3.9 US qt, 3.3 lmp qt}
H22Al engino:
Manuaf :
4.O f 9.2 US qt, 3'5 lmp qt)
Loosen the air bleed bolt in the thetmostat housing,
then fillthe radiator to the bottom of the tiller neck
with the coolant mixtu.e. Tighten the bleed bolt as
soon as coolant stans to run out in a steadv stream
without bubbles.
BLEED BOLT
60 N.m {6.0 kg-m, 43 lb-ft}
Applv liquid gasket to the
bolt threads when installing.
1O. With the radiator cap oft, start the engine and let it
run until warmed up (Radiator fan goes on at least
twice). Then, if necessary, add more coolant mix to
bring the level back up to the bottom ot the filler
neck.
11. Put the radiator cap on tightly, then run the engine
again and check tor leaks.
10 -6
Radiator
Engine Coolant nefill\ and Bleeding
CAUTlOttl: When pouting engino coolaisQgsuro to shut
th6 ralay box lid and not to lst coolanl spill on tho elec-
trical part6 or lh€ paint. lf any coolant spills, rinse it off
immodiat6ly.
1. Set the heater temperature lever or conttol dial to
maxamum heat.
2. Remove the engine splash shield.
3. When the radiator is cool, remove the radiator cap.
Loosen the drain plug, and drain the coolant.
4.
Remove the drain bolt trom the rear side of the
cylinder block to drain the block and heater,
5. Apply liquid gasket to the drain bolt threads, then
reinstall the bolt with a new washer and tighten it
securely.
6. Tighten the radiator drain plug securely.
7, Remove, drain and reinstallthe reservoir. Fillthe tank
haltway to the MAX mark with water, then up to the
MAX mark with anti-freeze.
8. Mix the recommended anti-freeze with an equal
amount ol water in a clean container.
N O T E :
a Use only genuine Honda anti-Jreeze/coolant.
a Fof best corrosion Drotection, the coolant concen-
tration must be maintained year-round at 50
minimum. Coolant concentrations less than 50%
may not provide sutficient protection against cor-
rosion or treezing.
a Coolant concentrations greater than 60% will im-
paif cooling efficiency and are not recommended.
CAUTION:
a Do not mix dilferent brands of anti-freoze/
coolants.
a Do not uso additional rust inhibitors or anti-rust
products; they may not be compatible with tho
g€nuine coolant.
Engine Coolant Refill Capacity: including reservoir
{0.6 t {0.6 US qt, 0.5 lmp qt}l and heatar {0.6 f (o.6
US qt, 0.5 lmp qt)|.
F22Al engine:
M a n u a l :
3 . 5 I ( 3 . 7 U S q t , 3 . 1 l m p q t )
Automatic: 3.4 f {3.6 US qt, 3.0 lmp qtl
DRAII{ BOLT