Oil Injection Hose Installation - Mercury Optimax 115 Service Manual

Oil Injection Hose Installation

Install the correct inside diameter and length of hose between oil pump and fittings on the
engine (see chart below). Cylinders #1, #3, #5 only have a BLUE stripe/band.
Fasten hoses on both ends with sta-straps.
c
Cyl
a
#5
Cyl
Cyl
#1
#3
Cyl
#2
Cyl
#4
Cyl
#6
a -
b -
Cyl. #1 0.078 in. (1.98 mm) I.D. Check Valve
with 3.125 in. (79.4 mm) length Hose
Cyl. #3 0.078 in. (1.98 mm) I.D. Check Valve
with 3.125 in. (79.4 mm) length Hose
Cyl. #5 0.078 in. (1.98 mm) I.D. Check Valve
with 3.125 in. (79.4 mm) length Hose
Cyl. #2 0.063 in. (1.60 mm) I.D. Check Valve
with 1.250 in. (31.7 mm) length Hose
Cyl. #4 0.063 in. (1.60 mm) I.D. Check Valve
with 1.250 in. (31.7 mm) length Hose
Cyl. #6 0.063 in. (1.60 mm) I.D. Check Valve
with 1.250 in. (31.7 mm) length Hose
Note All check valve I.D. measurements
given are
90-855347R1 JANUARY 1999
e
Cyl #1
d
3
Cyl #3
d
d
2
Cyl #5
1
b
Air Compressor
Oil Pump
0.002 in. (0.050 mm)
a
4
Cyl #2
d
Cyl #4
d
Cyl #6
d
c - Fasten Hose Ends with Sta-Straps
d - Check Valves
e - Check Valve (oil return)
Oil Hose Sizes
Hose Inside Diameter
.01 (0.25mm)
1 0.125 (3.2 mm)
2 0.125 (3.2 mm)
3 0.125 (3.2 mm)
4 0.092 (2.3 mm)
5 0.092 (2.3 mm)
6 0.092 (2.3 mm)
7 0.092 (2.3 mm)
OIL INJECTION
5
6
7
Length 0.20
(5.1 mm)
16 in. (406 mm)
20 in. (508 mm)
16 in. (406 mm)
28 in. (711 mm)
24 in. (610 mm)
24 in. (610 mm)
24 in. (610 mm)
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