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Indmar Assault 310 Carbureted Operator's Manual

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  • Page 1 Operator ’s Manual...
  • Page 2 PROPOSITION 65 WARNING The engine exhaust from this product contains chemicals known State of California to cause cancer, birth defects or other reproductive harm.

  • Page 3: Important Safety Information

    Indicates the presence of a hazard which result of your decision. CAN cause SEVERE injury, death or substan- tial property damage. Indmar Marine Engines...
  • Page 4 ENGINES COVERED The information in this manual applies to the following engine models: Indmar Assault 310 Carbureted MasterCraft LQ9 PFI Indmar Assault 325 PFI MasterCraft 8.1L PFI Indmar Assault 340 PFI Indmar 6.0 PFI Indmar 8.1L PFI Indmar 454 Carbureted...
  • Page 5 Dear Indmar Marine Engine Owner, Congratulations on selecting the finest marine inboard power available for your boat; Team Indmar welcomes you to our family of owners! Indmar proudly stands behind our products and is the first inboard manufacturer to offer a 3-year limited warranty.
  • Page 6 INDMAR MARINE ENGINES COMPANY MISSION To produce the world’s finest, most advanced and most dependable gasoline inboard marine engines at the best possible price, while respecting the needs of our employees, customers, vendors and the precious environment we share. Indmar Marine Engines...

  • Page 7: Table Of Contents

    Exhaust Hoses ........4-7 Selecting a Propeller ....... .4-8 Indmar Marine Engines...
  • Page 8 Appendix B – Engine Specifications ..... . B-1 Appendix C – Limited Warranty ......C-1 Indmar Marine Engines...

  • Page 9: Introduction

    They have current specifications, parts and the special equipment needed to service your Indmar engine and drive line. To find your nearest Indmar dealer, please call (901) 353-9930 or visit our website at www.indmar.com. To ensure that the proper information is available, note the six digit engine serial number.
  • Page 10 If the trade-in and resale is handled by an authorized This registration enables us to contact you, if it should Indmar dealer, the dealer must fill out the warranty regis- become necessary, to change or improve your product. tration transfer form and send it and other paperwork...
  • Page 11 Any alteration, change, improper maintenance or abnor- mal use by you which renders the engine or any of its components unreasonably dangerous will void all war- ranties and Indmar will not be liable for the resulting damages or injuries. Indmar Marine Engines...
  • Page 12 1-800-END-SMOG • www.arb.ca.gov need no additives for proper operation. expelled from the engine. INDM-A042 Your Indmar manufactured engine has a special environ- • Malibu LS1 engine 93 Octane mental label required by the California Air Resources •...
  • Page 13 Air Filter (Flame Arrestor) Additives – The only additive that is recommended 3. Ignition System by Indmar for use in your engine is Sta-Bil brand fuel Spark Plugs stabilizer. This additive helps preserve the fuel in your Electronic Ignition System tank and in the engine’s fuel system.
  • Page 14 All emission warranty parts are warrant- Current owner’s name, address, telephone, ed by Indmar for the entire warranty period of the engine, engine serial number and date of purchase unless the part is scheduled for replacement as required maintenance in the Operator’s Manual.
  • Page 15 • Flame Arrestor: Clean every 100 hours. Replace as necessary. • Spark Plugs: Replace every 300 hours or annually, whichever occurs first. • PCV Valve: Replace every 300 hours or annually, whichever occurs first. • Spark Plug Wires: Inspect annually. Replace as nec- essary. Indmar Marine Engines xiii...
  • Page 16 Emission Component Part Numbers Following are the Indmar Part numbers for the Emission Maintenance Components: Engine Oil Filter Spark Flame Plug Distributor Rotor Plugs Valve Arrestor Wires Indmar Assault 310 556262 505001 525006 Indmar Assault 325 521119 756002 556083 556084...
  • Page 17 Select emission control parts from model year 2003- YOUR WARRANTY RIGHTS AND OBLIGATIONS 2008 inboard engines are warranted for 2 years. The California Air Resources Board and Indmar Select emission control parts from model year 2009 and Products are pleased to explain the emission control sys- later are warranted for 3 years.
  • Page 18 As the inboard engine owner, you should be aware that Indmar Products may deny you warranty coverage if your inboard engine or part has failed due to abuse, neglect, improper maintenance or unapproved modifications.

  • Page 19: Chapter 1: First Time Operation And Break-In

    If you have questions about any of these water from the block. procedures, see your Indmar dealer for assistance. Exhaust – The drain hose must be connected. Transmission – The transmission oil cooler has one drain plug.
  • Page 20 Blocked or 3. Make sure your battery is fully charged and the cables restricted water flow may damage the engine. are clean and tight. 4. Check engine oil for correct level. Refer to Chapter 6, Maintenance. Indmar Marine Engines...
  • Page 21 To prime: • Turn the ignition key ON for 5 seconds. • Turn the ignition key OFF for 5 seconds. • Repeat above eight to ten times Figure 1.4 – Raised Engine Cover Indmar Marine Engines...
  • Page 22 NOTICE Break-In Taking care now to break-in your new Indmar engine is The above procedure is only necessary for VERY important. When broken in properly, your engine the first time the engine is started or in the will last longer, run better and require fewer repairs over event the fuel tank is run dry.
  • Page 23 Your Indmar dealer is best equipped to check the engine immediately after break-in. After the break-in procedure is over, your boat may be operated at any speed.
  • Page 24 Indmar Marine Engines...
  • Page 25 Operating a boat is a safe and enjoyable experience. Indmar marine engines use gasoline for fuel. The area WARNING under the engine and around the gasoline tank and sup- ply lines is not open to outside air.
  • Page 26 DO keep your boat’s engine well-maintained and regularly check to make sure carbon monoxide detectors in the cabin are working properly. DO always wear a properly fitted life jacket while in or around water. Indmar Marine Engines...
  • Page 27 WARNING INDM-A007 Figure 2.1 – Pre-Start Check Points Your Indmar Marine Engine is cooled by 1. Verify boat hull and/or garboard drain plug are in pumping water from the body of water that place. the engine is being operated in through the 2.
  • Page 28 9. Check alternator belt for wear and proper tension. 10. Verify that exhaust hoses are in good condition and clamped tight. 11. Ensure that the propeller shaft coupler bolts are tight. 12. Verify engine mounts are tight. Indmar Marine Engines...
  • Page 29 Check wiring for signs of wear and abrasion. 14. Verify throttle/shift control is functional and properly adjusted. 15. Verify steering controls are functional and properly adjusted. 16. Verify battery connections are clean and securely fastened. INDM-A010 Figure 2.4 – Battery Connections Indmar Marine Engines...
  • Page 30 Indmar Marine Engines...

  • Page 31: Chapter 3: Engine Starting Procedures

    1. Run the blower for 4 minutes to remove explosive sion resulting in death or serious injury to gasoline and battery fumes from the engine compart- you and your passengers. ment. Indmar Marine Engines...
  • Page 32 (less than NOTICE 1100 RPM). Let engine warm up to normal operating temperature before accelerating. On carbureted engines it will be necessary to feather the throttle until the engine warms up. Indmar Marine Engines...

  • Page 33: If Engine Does Not Start

    1. Check throttle lever (1, Figure 3-4) to make sure it is pulled out (or Neutral lockout button, 2, activated) so that boat is still in NEUTRAL. 2. Wait for 30 seconds to allow starter motor to cool. Indmar Marine Engines...

  • Page 34: Engine Restart

    10 seconds to clear extra wiring and protection system. Before adding electrical gasoline from the engine. When engine starts, imme- equipment, consult your Indmar dealer. diately return throttle handle to IDLE position. 4. If it does not start, wait two minutes and try the sequence again.

  • Page 35: Chapter 4: Normal Operation

    Do not allow excessive amounts of water to remain in the bilge. Component damage due to water is not covered by the warranty. °F 2. Follow the starting procedures outlined in Chapter 3, Engine Starting Procedures. INDM-A015 Figure 4.1 – Typical Temperature Gauge Indmar Marine Engines...

  • Page 36: Operating The Controls

    Your engine has a safety feature that allows the engine to crank only in the neutral position. If during the starting process your engine will not turn over, make sure that the shift / throttle control is in the NEUTRAL position and try again. Indmar Marine Engines...

  • Page 37: Unusual Vibration

    Avoid using the throttle when in reverse. This to your engine, drive line, or transmission caused by can force water backwards into the exhaust vibration is not covered by your warranty. system and into the engine cylinders with major damage. Indmar Marine Engines...

  • Page 38: Fuel System

    FUEL SYSTEM Before disconnecting the battery, make sure the battery switch (if equipped), ignition key and all accessories are The Indmar fuel system uses high quality marine grade in the OFF position. components. These components will tolerate small amounts of water without sustaining damage. Your...

  • Page 39: Check Engine Light (Efi Engines Only)

    INDM-A018 and sea strainer (if equipped) and hoses for blockage or Figure 4.5 – Typical Check Engine Light problems. Indmar Marine Engines...

  • Page 40: Check Transmission Light

    RPM is not harmful, even if the light is lit, provided that the V-Drive oil level is sufficient. If the oil level is normal and the light stays lit above 2000 RPM, take the boat to your Indmar dealer for service. ENGINE COOLING INDM-A019 Figure 4.6 –...

  • Page 41: Exhaust Hoses

    The engine exhaust from this product con- tains chemicals known to the State of CAUTION California to cause cancer, birth defects or other reproductive harm. Running the engine during the RPM reduc- tion phase may cause severe damage to your engine. Indmar Marine Engines...

  • Page 42: Selecting A Propeller

    (propping) with the proper diameter and pitch. The Install a lower pitched propeller to increase WOT RPMs. propeller which was supplied with your boat was chosen by the boat builder for best all-around performance under average conditions. Indmar Marine Engines...
  • Page 43 Humidity, barometric pressure and temperature have a noticeable effect on Indmar suggests that if you do require a different pro- the density of air since heat and humidity thin the air. peller, consult the dealer you bought the boat from. The...
  • Page 44 4-10 Indmar Marine Engines...

  • Page 45: Chapter 5: Fuel

    • Gasoline spills on your skin should be washed immediately with soap and water. If gasoline spills on clothing, change cloth- INDM-A021 ing immediately. Figure 5.1 – Filling Fuel Tank * Avoid spilling gasoline. Clean spills with dry cloth and dispose properly. Indmar Marine Engines...

  • Page 46: Using Oxygenated Fuels Or Fuels With Alcohol

    If your boat has not been used for more than 30 days with fuel in the tank (even stabilized fuel), the engine may run poorly until the “old” fuel is used up. Indmar will not pay for repairs to carburetors or fuel injection compo- nents that are inoperable or damaged from old and/or poor quality fuel.

  • Page 47: Fuels In Other Countries

    10% ethanol. If you operate your Indmar engine outside the USA or Canada, unleaded fuels may be difficult to obtain. Leaded fuels are not recommended as engine compo- CAUTION nents will last longer using unleaded fuel.
  • Page 48 Indmar Marine Engines...

  • Page 49: Chapter 6: Maintenance

    Your Indmar dealer is your best source for engine repair installed and tightened. If not, any electrical or ignition and maintenance. Indmar certified technicians attend...
  • Page 50 Boats that are operated in these severe conditions will be required to have more frequent oil and filter changes (every 25 hours instead of every 50 hours). Indmar Marine Engines...
  • Page 51 Raw Water Pump Impeller Inspect Replace Breather Hose* Clean PCV Valve* Replace Starter Bendix* Grease Heat Exchanger Inspect/Clean Zinc Anodes Inspect * Services best accomplished by your Indmar dealer. Severe use applications (see special note on previous page) Indmar Marine Engines...

  • Page 52: Engine Oil

    2 minutes after you turn off the engine to allow the oil to drain into the oil pan, giving you a more accurate reading. INDM-A025 Figure 6.3 – Engine Oil Fill INDM-A003 Figure 6.2 – Dipstick Indmar Marine Engines...
  • Page 53 To maximize engine life, change the oil filter at every oil change. Indmar uses and recommends Pennzoil Marine 15W40 in all 5.7L, 6.0L and 6.2L engines and Pennzoil Marine 40W in all 7.4L, 8.1L and 8.2L engines. This oil meets the API Service CI-4, CH-4, CG-4, CF-4, and CF/SL.
  • Page 54 Oil Additives CAUTION Do not use oil additives. Indmar engines do not need oil Engine oil is hot. Be careful not to burn yourself. additives. Use of recommended oil, along with regular oil and oil filter changes, will protect your engine adequately.

  • Page 55: Engine Flame Arrestor

    Use only gen- engine. Because an inboard engine is completely uine Indmar replacement parts to ensure proper fit and enclosed, an uncontained backfire can be extremely protection against fire and explosion.
  • Page 56 Closed cooled engines are shipped from the engine temperature, and various connecting hoses. The Indmar factory filled with a 50/50 mix of raw water pump pulls outside water through the intake, Sierra brand antifreeze and water. This mix- circulates the water through the engine and then ture provides freeze protection down to –26°...
  • Page 57 Your warran- a result of inadequate maintenance on an engine used in ty will not cover engine damage due to over- salt water will not be covered under the Indmar Limited heating or any other cause associated with Warranty.

  • Page 58: Internal (Cooling System) Care

    Rinsing the in brackish or salt water. See your Indmar dealer to install engine with fresh water between applications of the a closed cooling system if you have this engine and will operate it in brackish or salt water.
  • Page 59 Full FWC systems utilizing those or three years on boats used exclusively in salt water. manifolds use anti-freeze in the complete manifold/riser assembly and will not have the riser corrosion issues associated with the two piece manifold/riser assemblies. Indmar Marine Engines 6-11...
  • Page 60 The rod will assist in cleaning out bits of grass, INDM-B007 zinc, shells, and Figure 6.7 – Sacrificial similar materials which are just lodged in the tubes. Anode INDM-A036 Figure 6.8 – Raw Water Pump Impeller 6-12 Indmar Marine Engines...

  • Page 61: Ignition Timing

    BTDC. (Figure 6.10) ing. On carbureted models, the ignition timing is care- 6. Disconnect timing shunt TIMING fully adjusted at the Indmar factory. Unless the distrib- from 12 volts and remove NOTCH utor hold down clamp is loosened and the distributor plug from distributor.

  • Page 62: Carburetor Adjustments

    High water levels can also allow Indmar suggests that you contact your dealer for assis- water intrusion into the transmission causing tance. Unauthorized removal of the carburetor sealing severe damage.
  • Page 63 ZF Hurth in-line transmission for shifting. Be aware that the Walters V-Drive uses motor oil for lubrication, while the ZF Hurth transmission uses Automatic Transmission Fluid. The Walters V-Drive also has a low oil pressure Indmar Marine Engines 6-15...
  • Page 64 4. If level is below “ADD” mark, add the proper fluid until it reaches the full mark. Add fluid through same tube as you removed the transmission dipstick. INDM-A031 Figure 6.13 – Walters V-Drive Dipstick Location 6-16 Indmar Marine Engines...

  • Page 65: Electrical System

    ELECTRICAL SYSTEM All Indmar engines are equipped with a 35 A circuit breaker (1, Figure 6-14) to protect the engine electrical system and components from overload. If the engine will...

  • Page 66: Wiring

    If the breaker trips again, there is a problem with the WIRING electrical system. Take your boat immediately to your Indmar dealer for repair. If during maintenance or inspection, it becomes neces- sary to move or reposition any of the engine’s wiring or...

  • Page 67: Chapter 7: Storage And Winter Lay-Up

    Damage that is the result of improper warranty! storage is not covered under terms of Indmar’s limited warranty. To properly winterize your engine, you MUST be able to bring the engine up to operating temperature. To accom-...

  • Page 68: General Preparation

    Sierra Brand Anti Freeze (As required for Fresh operated without the flame arrestor secured, Water Cooled Engines Only) extreme care must be taken to ensure that the engine compartment is well ventilated and that no fuel leaks are present. Indmar Marine Engines...
  • Page 69 7. Drain seawater section of the cooling system. All Engines: 1. Drain water from exhaust manifolds except on salt water series engines. Uncouple the hose quick disconnect and drain the manifolds. Indmar recommends that you leave the drain plugs out, or the hose uncoupled, until spring. INDM-A038 2.
  • Page 70 5. On Walters V-Drive equipped units, remove the two small square headed drain plugs from the front and rear of the upper housing. Look for the words “Water Drain” on the housing. Indmar Marine Engines...
  • Page 71 Placing the drain plugs, impeller, etc. in a plastic bag and attaching the bag to the steering wheel of the boat is a good reminder to reinsert the plugs when you recommission the boat in the spring. Indmar Marine Engines...
  • Page 72 Figure 7.6 – Anti Knock Sensor NOTICE Some 5.7 Liter engines have a knock sensor located in the drain location. The knock sen- sor and knock sensor stud must be carefully removed to drain that side of the block. Indmar Marine Engines...
  • Page 73 1. Change the transmission fluid and clean the filter exchanger and drain the raw water from the exchang- screen following the instructions in the Transmission er. One of the drain plugs in the heat exchanger is a Owner’s Manual. Indmar Marine Engines...

  • Page 74: Reactivating Engine After Extended Storage

    1. Charge and reinstall the battery in the boat. Make 5.7L engines, and replace if worn, damaged or cor- sure terminals are clean and tight. roded. 12. If the fuel tank was drained, fill tank with fresh fuel that does not contain alcohol. Indmar Marine Engines...
  • Page 75 If no leaks are found, the boat is ready for operation. 3 " . 0 0 INDM-A037 Figure 7.9 – Prop Shaft Flange Alignment Indmar Marine Engines...
  • Page 76 7-10 Indmar Marine Engines...

  • Page 77: Chapter 8: Troubleshooting

    6. Lack of fuel at carburetor (Carbureted Engines Only) diagnosis charts to help pinpoint problems. In most 7. Battery cables loose or corroded cases, you will need the assistance of your Indmar deal- 8. Loose electrical grounds at engine er to correct the cause of the problem.
  • Page 78 6. Seized engine — turn crank pulley with socket and 4. Engine in need of tune-up ratchet 5. Engine needs to be adjusted for high altitude operations 6. Engine needs to be adjusted for temperature extremes 7. Carburetor out of adjustment (Carbureted Engines Only) Indmar Marine Engines...

  • Page 79: Appendix A - Maintenance Components And Fluids

    15W-40 Pennzoil Marine, API Service SL/SJ/CI-4, CH-4, CG-4 Walters V-Drive SAE 30 Pennzoil Motor Oil Engine Fuel (for storage) STA-BIL fuel stabilizer Engine Cables (for corrosion protection) Pennzoil Marine Z-M Corrosion Protectant and Lubricant Starter Bendix Pennzoil Premium Plus Multipurpose Grease Indmar Marine Engines...
  • Page 80 Alternator Belt All Indmar 5.7 Liter – Indmar 725018 All Malibu MasterCraft 5.7L and 6.2L – Indmar 725034 LS1/LQ9/6.0 serpentine – Indmar 725028 8.1 Liter – Indmar 725030 Thermostat All Raw water cooled – Indmar 985009 All Closed cooled except LS1/LQ9/6.0 – Indmar 986034 LS1/LQ9 –...

  • Page 81: Appendix B - Engine Specifications

    AC 41-985 AC 41-983 Spark Plug Gap 0.030 in. 0.060 in. (1.5 mm) 0.050 in. (1.3 mm) (0.76 mm) Base Timing at 1000 RPM (Note 3) 10˚ Before Top Non Adjustable Dead Center Thermostat 160° F (71° C) Indmar Marine Engines...
  • Page 82 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 at the “Full Cold” mark on the coolant recovery bottle when coolant is cold. Indmar Marine Engines...
  • Page 83 Firing Order 1-8-4-3-6-5-7-2 Spark Plug Type MR43LTS or 41-932 (Platinum Tip) Spark Plug Gap 0.045 in. (1.1 mm) .060 (Platinum) Base Timing at 1000 RPM (Note 3) 10˚ Before Top Dead Center Thermostat 160° F (71° C) Indmar Marine Engines...
  • Page 84 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 at the “Full Cold” mark on the coolant recovery bottle when coolant is cold. Indmar Marine Engines...
  • Page 85 Limited Product Warranty. If a Product or defective part thereof is, upon examination by Indmar, determined by Indmar to be defective, Indmar shall repair, or at its sole option, provide either a new or rebuilt replacement of equivalent quality.
  • Page 86 (h) Transportation charges and travel time incurred by Indmar to fulfill any of its obligations pursuant to this Limited Product Warranty. (i) Service or work to the Product as requested by the Customer that is as determined solely by Indmar to be beyond the scope of this Limited Product Warranty.
  • Page 87 5. Inspection and Testing of Product. Certain parts of the Product may be tested upon receipt by Indmar. Such parts found to be free of defects will be returned to the dealer and no credit will be issued. Indmar reserves the right to retrieve run time/run condi- tion data from a Product’s Electric Control Module prior to granting any warranty coverage on the Product under this Limited Product...
  • Page 88 Indmar’s prior receipt of the Indmar Warranty Registration Card or the successful online registration of the Product. In the case of a leased boat, a copy of the lease contract showing the length of the lease must be delivered to Indmar. In the case of a warranty trans- fer to a subsequent owner or lessor, the new owner/lessor’s information along with a check for $200.00 made payable to “Indmar...
  • Page 89 (b) When the Product is serviced by any individual or entity not authorized or approved by Indmar; or (c) When damage to the Product results from cases not arising from defects in material and/or workmanship and Indmar in its sole discretion determines the same.
  • Page 90 Indmar Marine Engines...
  • Page 91 Date of Purchase: ______________________ Owner Name: _____________________________________________ Address: __________________________________________________ City: ________________________________ State/Province: ___________________________ Zip/Postal Code: ____________ Country: ____________________ Engine Serial Number: _____________________________ Transmission Serial Number: _______________________ 10-20 Hour Service Every 100 Hour Service Every 300 Hour/Annual Service Date:___________ Hours:____________ Date:___________ Hours:____________ Date:___________ Hours:____________ By:_______________________________ By:_______________________________...
  • Page 92 J.D. Power and Associates Ranks Indmar Inboards Highest In Customer Satisfaction Inboard Gas Engines (Ski/Wake). 5400 Old Millington Road Millington, TN 38053 w w w. i n d m a r. c o m Ken Cook Co. Part No. OME0502-06...

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