Mercury Optimax 115 Service Manual page 517

SPECIFICATIONS
TIMING
AIR
COMPRESSOR
Page 1A-4
Model 115/135/150/175 DFI
Full Throttle RPM Range
(115/135)
(150/175
Idle RPM (In Forward Gear)
Maximum Timing: @ Wide OPEN
Idle Timing
Throttle Position Sensor
@ Idle
@ W.O.T.
Firing Order
Type
Compressor Output
Cylinder Block Displacement
Cylinder Bore
Diameter (Standard)
Taper/Out-of-Round/
Wear Maximum
Bore Type
Stroke Length
Piston Type
Piston Diameter
Piston Ring End Gap
Top Ring
Middle Ring
Bottom Ring
Reeds
Stand Open
5000 - 5500
5250 - 5750
550 25
Not Adjustable Controlled by ECM
Not Adjustable Controlled by ECM
3.20 - 4.90 VDC
0.10 - 1.50 VDC
1-2-3-4-5-6
Reciprocating Piston
(1 to 1 ratio with engine RPM)
@ Idle – 80 psi
@ W.O.T. – 110 psi
7.07 cu. in. (116 cc)
2.5591 in. (65.0 mm)
0.001 in. (0.025 mm)
Cast Iron
1.374 in. (34.9 mm)
Aluminum
2.5578 .0004 in.
(64.97 0.010 mm)
Dimension
"A" at
Right
Angle
(90 ) to
Piston Pin
0.0059 – 0.0098 in.
(0.15 – 0.25 mm)
0.0059 – 0.0098 in.
(0.15 – 0.25 mm)
0.0039 – 0.014 in.
(0.10 – 0.35 mm)
0.010 in. (0.25 mm)
90-859494R1 JUNE 2000
0.500 in.