(19) Fill the cooin g system with proper coolant , to
the proper level (Refer to 7 - COOLING/ENGINE /
COOLANT - STANDARD P ROCEDURE).
(20) Connect n egat ive batt ery cable.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS, OR FAN. DO
NOT WEAR LOOSE CLOTHES.
WARNING: (Refer to 14 - FUEL SYSTEM - WARN-
ING).
(21) Star t the en gin e and inspect for lea ks.
PI ST ON RI N GS
STANDARD PROCEDURE - PISTON RING FIT-
TING
(1) Carefully clean t he carbon from all ring
grooves. Oil drain openings in the oil ring groove and
pin boss must be clear. DO NOT r emove met al from
the grooves or lan ds. This will cha nge ring-to-groove
clear ances a nd will damage the rin g-to-land sea ting.
(2) Be sure the piston ring grooves are fr ee of
nicks and bu rrs.
(3) Measur e the ring side clearance with a feeler
gau ge fitted snugly between th e ring land and r ing
(Fig. 43). Rot ate t he ring in th e groove. It must move
freely around circum ference of the groove.
RI N G SI DE CLEARAN CE CH ART
ITEM SPECIFICATION
Top Compression Ring 0.012 - 0.016 mm
(0.0047 - 0.0063 in.)
Second Compression
Ring
0.05 - 0.09 mm
(0.0019 - 0.0035 in.)
Oil Control Ring 0.03 - 0.07 mm
(0.0011 - 0.0027 in.)
(4) Pla ce ring in the cylinder bore an d push down
with inverted pist on t o position near lower end of t he
ring travel. Measur e ring ga p with a feeler gauge fit-
ting snugly between ring ends (Fig. 44).
RI N G GAP M EASU REM EN T CH ART
ITEM SPECIFICATION
Top Compression Ring 0.229 - 0.610 mm
(0.0090 - 0.0240 in.)
Second Compression
Ring
0.483 - 0.965 mm
(0.0190 - 0.080 in.)
Oil Control Ring 0.254 - 1.500 mm
(0.010 - 0.060 in.)
(5) The oil cont rol rings are symmetrical, and can
be insta lled with either side up. It is not necessar y to
use a tool to in st all the upper a nd lower ra ils. In ser t
oil r ail spacer fir st , then side rails.
(6) Usin g a ring expan der, in st all compression
rings with man ufact ures design ation pointing toward
piston crown (F ig. 45).
Fig. 43 Measuring Piston Ring Side Clearance
1 - FEELER GAUGE
Fig. 44 Ring
1 - FEELER GAUGE
9 - 52 ENGINE VA
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