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Thank you for purchasing a Honda engine. This manual describes the operation and maintenance of the GD320 and GD410 diesel engines. All information in this publication is based on the latest product information available at the time of printing. Honda Motor Co., Ltd. reserves the right to make changes without notice and without incurring any obligation. at any time No part of this publication permission.
I CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 2 ENGINE SAFETY.. ................................................................ COMPONENT IDENTIFICATION.. ............................................ BATTERY CONNECTIONS (For electric starter). ......................... PRE-OPERATION CHECK.. ..................................................... STARTING THE ENGINE ........................................................ STOPPING THE ENGINE ........................................................
1. ENGINE SAFETY Honda engines are designed to give safe and dependable service if operated according to instructions. Read and understand this Owner’s Manual before operating the engine. Failure to do so could result in injury or equipment damage. To prevent fire hazards and to provide adequate ventilation, keep the engine at least 1 meter (3 feet) away from buildings and other equipment during operation. Do not place flammable objects close to the engine.
2.
DECOMPRESSION LEVER (Electric starter type only) I WATER DRAIN BOLT SERIAL NUMBER AND ENGINE TYPE - IENGINE OIL DRAIN PLUG
Starter Switch This switch (electric operates start type only) the electric starter. NOTE: l This switch will not stop the engine. l During operation, leave the starter switch at the “RUN” position. When the engine stops, move the starter switch to the “OFF” position. STARTER SWITCH Stop Lever (dual lever type only) When starting the engine, move this lever up to the “START” position. To stop the engine push the lever down to the “STOP” position.
Engine Speed Control Levy Dual lever type Position this lever for the desired engine speed. ENGINE SPEED CONTROL LEVER HIGH SPEED (WARM UP) H Single lever type This lever is used to “start” engine speed.
I Decompression lever (electric starter type only) The electric starter type engine is equipped with a manual decompression device that makes it easier to pull-start the engine. When the lever is moved up, it partially opens the exhaust valve and releases some compression from the cylinder. When the engine starts, the lever automatically returns to the closed position. I-NOTICE 1 St opping the engine with the decompression lever will damage the engine.
3. BATTERY CONNECTIONS Use a 12 volt battery with an ampere-hour Connect shown. the battery (For electric starter) rating of at least 28 AH. posive (+) cable to the starter solenoid Connect the battery negative (-1 cable to an engine mounting bolt, or other good engine ground connection. terminal, as bolt, frame Check the battery cable connections to be sure the cables are tightened and free of corrosion. Remove any corrosion with a wire brush and coat the terminals and cable ends with grease.
I 4. PRE-OPERATION 1. Engine CHECK oil Engine oil is a major factor affecting engine performance and service life. Be sure to check the engine on a level surface with the engine stopped. Use SAE low-30 engine oil certified to meet or exceed US automobile manufacturer’s requirements for API Service Classification CC or CD (Diesel oils intended for Service CC or CD will show this designation on the container). SAE 1 OW-30 is recommended for general, all temperature use.
2. Fuel Check the fuel level, and refill the tank if the level is low. 1 NOTICE ] us e d’resel fuel other fuel could damage only. Using gasoline,benzine, the engine. kerosene, or any Use ONLY clean high-quality fuel Recommended fuel specifications: ASTM D-975-l -D/2-D Use grade No. 2-D fuel at temperatures above 40°F (4OC) Use grade No. I-D fuel at temperatures below 40°F (4OC) Use grade No.
3. Air cleaner 1 NOTICE 1 N ever run the engine without the air cleaner. Rapid engine wear will result. 1. Check the air cleaner elements to be sure they .are clean and in good condition. Clean or replace the elements if necessary (p. 23). 2. Check the cyclone housing, and clean it if it is clogged or excessively dirty (p. 23). 3. Be sure to securely tighten the wing nuts after inspection.
5. Starting m With THE ENGINE the engine Exhaust halation of exhaust fined area. l STARTING contains poisonous carbon monoxide gas. Avoid ingases. Never run the engine in a closed garage or con- recoil starter 1. (Dual lever type) a. Move the stop lever up to the “START” position. STOP LEVER (Single lever type) b. Set the engine speed control ‘,o, “.
I 2. Pull the starter grip lightly grip to its original position. until resistance NOTE: If the engine is equipped pression lever. DECOMPRESSION is felt, and then return the with an electric starter, LEVER raise the decom- STARTER GRIP 3. Pull the starter grip briskly. (On electric start models the decompression lever will snap down automatically when the starter grip is pulled.1 NOTE: Repeat steps 2 and 3 if the engine does not start.
. When the engine is cold, set the control lever to the warm-up position (in the middle of HIGH SPEED and LOW SPEED) for about 3 minutes, in order to warm it up to the operating temperature, after starting. 4. Position the engine speed control lever for the desired engine speed.
l With electric starter 1. (Dual lever type) a. Move the stop lever up to the “START” (Single lever type) b. Set the engine speed control ” 0, ‘I. position.
2. Turn the starter switch to the “‘START” position. Release the switch when the engine starts. It will return to the “RUN” position automatically. NOTE: Do not use the electric starter for more than 5 seconds at a time. If the engine fails to start, release the switch and wait 10 seconds before operating the starter again. RUN STARTER SWITCH @!@ position minutes, starting. 3.
I 6. STOPPING Stopping ( damage THE ENGINE the engine Attempting to stop the engine with the decompression the engine (electric start models only). 1. (Dual lever type) a. Move the stop lever down to the “STOP” lever will position. STOP LEVER ENGINE STOP ’ (Single lever type) b. Move the engine speed control ENGINE STOP 18. lever down to the STOP position.
2. (Electric start model) After the engine stops, move the starter switch to the “OFF” STARTER SWITCH position.
1 7. MAINTENANCE Periodic maintenance and adjustment are necessary to keep the engine in good operating condition. Perform the service and inspection scheduled in the following table. Shut off the engine before performing any maintenance. be run, make sure the area is well ventilated. m posure The exhaust contains poisonous carbon monoxide gas; can cause loss of consciousness and may lead to death. POTICE 1 Us e only genuine replacement engine.
1. Oil change Drain the oil while the engine is still warm to assure rapid and complete draining. 1. 2. 3. 4. Remove the oil filler cap and drain plug to drain the oil. Install the drain plug and tighten it securely. Refill with the recommended oil (see page IO) and check the oil level. Install the oil filler cap. ENGINE OIL CAPACITY: GD320 GD410 1.15 1.25 e (1.22 US qt) P (I .32 US qt) m Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods.
I 2. Engine oil filter service m damage. A clogged or restricted oil filter can cause serious engine The service intervals shown in the Maintenance Schedule on page 20 are the minimum. It may be necessary to service the oil filter more often than indicated. Severity of use, oil quality, climate, etc. all affect the oil filter service interval. (Cleaning) 1. Drain oil from the engine (see page 21). 2. Remove the oil filter from the engine by removing the two 6 mm bolts. 3.
3. Air cleaner 1. Remove the wing nut and the air cleaner cover. Remove the elements and separate them. Carefully check both elements for holes or tears and replace if damaged. 2. Foam element: Clean at every 100 hours of operation or every 6 months. NOTE: Service more frequently when used in dusty areas. Wash the foam element in a solution of household detergent and warm water, then rinse thoroughly, or wash in nonflammable or high flash point solvent. Allow the element to dry thoroughly.
I 4. Draining water from the fuel tank It is normal for water to collect in the bottom tant to drain this water regularly. L!!%!?. damage. Failure to drain water from the of the fuel tank. It is impor- fuel tank can lead to engine (Draining) 1. Loosen the water drain bolt about 2-3 turns to uncover the water drain hole. m To prevent fuel spillage, do not unscrew the drain bolt more than necessary to uncover the water drain hole provided in the bottom of the fuel tank. 2.
5. Spark arrester maintenance (Equipped type only) m The muffler becomes very hot during operation and remains hot for a while after the engine stops. Be careful not to touch the muffler while it is hot. Allow it to cool before proceeding. The spark efficiency. arrester must be serviced every 100 hours to maintain its 1. Remove the three 8 mm nuts and 8 mm bolt and remove the muffler. 2.
8. TRANSPORTING/STORAGE Before storing the unit for an extended period: 1. Be sure the storage area is free of excessive humidity and dust. 2. Drain fuel into an approved gasoline container by removing the drain bolt at the bottom of fuel tank. m Diesel fuel is extremely flammable and is explosive under certain conditions. Do not smoke or allow flames or sparks in the area. FUEL DRAIN BOLT 3. Change the engine oil (see page 21). 4. Close the valves to help prevent internal tions below.
9.
10. SPECIFICATIONS 1 Dimensions Description code 1 GD320 GD410 GPB GPA lQIWIVIQl P V Length Width mm in 405 (I 5.9) Height mm in 470 (I 8.5) Dry weight kg lb 405 (I 5.9) I I 490 (19.3) (104:.8) (I 15940, Engine Engine type 4-stroke, overhead valve, 1 cylinder diesel 317 cm3 (19.3 cu in) [76 x 70 mm (3.0 x 2.8 in)] 411 cm3 (25.1 cu in) [82 x 78 mm (3.2 x 3.1 in)1 Max. output 5.2 KW/3600 rpm (7 HP/3600 rpm) 6.7 KW/3600 rpm (9 HP/3600 rpm) Max. torque 15.7 N-m {I .
‘I 1. WARRANTY Owner SERVICE Satisfaction Your satisfaction and goodwill are important to your dealer and to us. All Honda warranty details are explained in the Distributor’s Limited Warranty. Warranty service is available at any dealership displaying the Honda Power Equipment Engines sign. To locate dealers in your area, look in the yellow pages of your telephone directory under Gasoline Engines, Garden & Lawn Equipment & Supplies, Lawn Mowers, etc.
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