Malibu Boats Sunsetter/Wakesetter LXi Specifications download pdf (Page 57)

4-3

Engine/Drive Train

Engine

For information on engine service, maintenance, and break-in period, please refer to your

engine owner’s manual. The Required Maintenance Schedule included in this manual covers

the minimum maintenance required for Indmar engine packages. The Maintenance

Worksheet included in this manual outlines safety checks, lubrication, and general service

that should be performed at regular intervals. It is recommended that any engine replacement

parts used for maintenance or repair be supplied by an authorized Malibu dealer.

Engine Specifications

Malibu Malibu Malibu LS1

Carbureted Monsoon Hammerhead Corvette 8.l MPI

Vortec 310 HP 340 HP 380 HP 375 HP Vortec

Number of Cylinders V-8

Displacement 5.7L 350 CID 496 CID (8.1L)

Bore/Stroke 4.0012 x 3.480 in 3.898 x 3.622 in 4.25 x 4.37 in.

(101.63 x 88.39 mm) (99 x 92 mm) (108 x 111 mm)

Compression Ratio 9.4:1 10.1:1 9.1:1

Compression Pressure (1) Minimum 100 PSI (690 kPa)

Idle RPM in Neutral (2) 650 ± 50 RPM

Operating Range at Wide 4400-4800 RPM 4600-5200 RPM 5200-5600 RPM 5000-5400 RPM

Open Throttle

Oil Pressure at Idle 4PSI (41kPa) 5PSI (34kPa)

Minimum - Hot Minimum

Oil Pressure at 2000 RPM 18 PSI (124 kPa) 10 PSI (69 kPa)

Minimum Hot Minimum

Oil Filter Pennzoil PZ3, AC-PF25 NAPA Gold 1042 AC-PF454

Fuel Pump Pressure 8 PSI Max 40 PSI Minimum at 50 PSI Minimum at

(55.2 kPa) Keyup (275.8 kPa) Keyup (344.7 kPa)

Electrical System 12 Volt DC Negative (-) Ground

Minimum Battery Requirements 650 cca/700 mca/120Ah

Firing Order 1-8-4-3-6-5-7-2 1-8-7-2-6-5-4-3

Spark Plug Type MR43LTS AC 41-931 Nippon Denso

TJ14R-P15

Spark Plug Gap .030 in (.76 mm) .045 in (1.1 mm) .050 in (1.3 mm)

Base Timing at 1000 RPM (3) 10 Degrees Before Top Dead Center Non Adjustable

Thermostat 160 Degrees F (71 C)

Fluid Capacities

Crankcase (With Filter) (4) 5.5 Quarts (5.25 L) With Filter 8 Qts (7.6 L)

Closed Cooling System (5) 12-14 Quarts 14-16 Qts

(11.4-13.3 L) (13.2-15.1 L)

In-Line Transmission (4) 2.12 Quarts (2.0 L)

Walters V-Drive Transmission (4) 2 Pints (.95 L) Not Used

Hurth V-Drive Transmission (4) Not Used 4.4 Qts (4.16L)

Notes

1) Minimum recorded compression in any one cylinder should not be less than 70% of the highest recorded cylinder.

2) Measured using an accurate shop tachometer at normal operating temperature. Idle RPM on EFI models is not adjustable.

3) Timing must be set using special procedures indicated in the appropriate service manual. Timing cannot be set using

conventional methods. Special tool(s) required.

4) Always use dipstick to determine exact quantity of oil required. Do not fill above “FULL” mark.

5) Do not over fill. Correct level is 3/4" below filler neck when coolant is warm.

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Malibu Boats Sunsetter/Wakesetter LXi Specifications Page 57

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