Start the engine and recheck the maximum no-load speed. Readjust the push rod, if necessary. Low engine oil pressure Similar to . The mechanical governors are identified by a name plate attached to the governor housing. Turn down the inner adjusting screw on the injector rack control lever of the adjacent injector until the injector rack has moved into the full-fuel position and the inner adjusting screw is bottomed on the injector control tube. The speed control lever should return to the idle position. No load is about 150 over full load. Click. Turn the inner adjusting screw of the No 1L injector rack control lever down until a slight movement of the control tube is observed, or a step up in effort to turn the screwdriver is noted. Be sure all of the injector rack control levers are free on the injector control tube. Injector or governor improperly adjusted After the exhaust valve clearance has been adjusted, check the fuel injector timing. Turn the outer adjusting screw down until it bottoms lightly on the injector control tube. Loosen the booster spring retaining nut on the speed control lever. If the clearance is correct, the 0.24 inch gage should pass between the end of one valve stem and the rocker arm bridge. Manuals; . This engine is used in tractors, generators, boat engines and much more, and is sometimes called the GM 6V53 or the V6-53 Detroit Diesel. Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. With the engine stopped and at normal operating temperature, adjust the governor gap as follows. Check the gap and readjust if necessary. Please select from below to jump to a specific section. and the blower (Fig. The next revision to this manual will include the revised information. 5) Manually hold the rear injector control rack in the full-fuel position with lever on the injector control tube and proceed as follows. If the readjustment of the governor gap is required, the position of the injector racks must be rechecked. Detroit:53 Series - governor adjustment - marinediesels.com Many of our customers have mentioned that they will store their engine from time to time, such as a generator that had been unused during the summer. Detroit Diesel 353, 453, 6V53, 8V53 Engine Tune Up Do not use any more than four thick and one thin shim. . If required add shims to attain the necessary operating speed. View online or download Detroit diesel 53 Series Service Manual, Operator's Manual. 10) Use a new gasket and reinstall the valve rocker cover. . Move the speed control lever to the maximum speed position. Injectors generally go for $65-80 each and a spring loaded injector control tube will run you maybe $30. Detroit Diesel 6V53 Usefull Information At idle Ive depressed the injector. Detroit Diesel 2-Stroke Series 71, 53, 92 Engines Detroit:53 Series - surging at idle - boatdiesel.com Please use the navigational links to explore our website. The variable speed mechanical governor assembly is mounted at the rear of the 6V engine, between the flywheel housing and the blower. Move the stop lever to the run position and hold it in that position with light finger pressure. Make sure to wait and allow the engine to cool if it did not start within 30 seconds. Defective fresh water pump Move the spring retaining bolt in the slot of the speed control lever until the center of the bolt is on or slightly over the center (toward the idle speed position) of an imaginary line through the center of the bolt, lever shaft and eye bolt. Check for and eliminate any deflection which may occur at the bend in the fuel rod where it enters the cylinder head. PDF REPOR T RESUMES - ed Improperly working injector Engine overspeed will result if the injector racks cannot be positioned at no fuel with governor stop lever. NOTICE: Before proceeding with the governor and injector rack adjustments, disconnect any supplementary governing device. Place circuit breaker to off position. 4. 0:00 / 33:26 Detroit 3-53T Valves, Injectors, Rack DetroitGarage 4.6K subscribers Subscribe 325 18K views 1 year ago Full tune up on the 3-53T as well as running the rack. maintenance and overhaul procedures for all Series 53 engines Scroll down for pics ! After the governor and injector rack adjustments are completed, the supplementary governing device must be reconnected and adjusted. 2L injector rack control lever down until the No. If the engine is allowed to cool before setting any of the valves, the clearance, when running at full load, may become insufficient. For Vehicle use, between 180-197 degrees F at 2600 RPM. This setting will result in the minimum force required to operate the speed control lever. Detroit:71 Series: Luhrs 380 open with twin Detroit 485hp: RicM : 19 : 1 : 11-Jul-16 Reply: RicM : 07-Jul-16 : Oh yeah, Im with Ken on the sound. With any procedure, be sure to carefully mark where items are removed from, and this should only be done by a person who has had experience working with Diesel engines. All three of these tools can be found on ebay. The recommended torque of the adjusting screws is 24-36Lbs (3-4N*m). Governor Spring Assemblies. Detroit 53 Series - idle too high - boatdiesel.com Step Four: With all of the drain cocks closed, fill unit with soft water or soft water with anti-freeze, depending on whether you live in a colder area. On units having the governor on the opposite side of the control rack, be sure the control rack lever will not contact the rocker cover. To correct this condition with the Two Screw Assembly, back off the outer adjusting screw slightly and tighten the inner adjusting screw. 6. Detroit Diesel GM Bedford 500; Detroit Diesel 50 Series; Detroit Diesel Series 60 DDEC VI; Detroit Diesel Series 60 EGR; The rack should tilt downward and when the pressure of the screwdriver is released, control should spring back upward. 2L injector rack. Adjust the variable speed spring eyebolt until of the threads project from the outer locknut. Step One: While the engine is cold, place the governor speed control lever in the idle position, and secure the stop lever in the stop position, if your engine has one. Ill add a couple things: . Detroit:53 Series - idle adjustment - boatdiesel.com Lack of air intake or restricted air intake, Faulty intercooler or aftercooler (for turbo engines only), Defective raw water pump (marine engines only), Clogged radiator or heat exchanger (marine engine only), Defective intercooler or aftercooler (for turbo engine only). If a stop lever is provided,secure it in the stop position. A change in the variable speed spring tension will change the engine idle speed and maximum no-load speed which must be readjusted. .08 yes, .010 no. Detroit Diesel 53 Series Fuel Injectors We stock new and remanufactured fuel injectors and injector assemblies for Detroit Diesel 253, 353, 453, 6V53, and 8V53 natural and turbocharged engines. Depending on the use, the temperature of the coolant should be within these ranges : Industrial use, between 170-187 degrees F at 2500 RPM. Place a .027" feeler gage, J 9708, between the end. This will place the No 3L injector rack in the full-fuel position. Fuel Injector Timing Do not overspeed the engine. The setting is too tight if, when moving the stop lever from the stop to the run position, the injector rack becomes tight before the stop lever reaches the end of its travel. Rebuilt Detroit Marine Pump New Detroit Marine Pump Marine Toilets, Alarms, Sirens, and more. 3R injector rack control levers are adjusted, do not try to alter their settings. Detroit Diesel 53 Series Service Manual (84 pages), Fixture for Holding Drive While Installing or Removing Slotted Nut, Hydrostarter Component Serial Number Locations, Purge Hydraulic Remote Control System, Hand Pump and Starter of Air, Check Accumulator Precharge Pressure Prior to Initial Engine Start, Hydrostarter Motor Details and Relative Location of Parts, Installing Hydrostarter Shaft Seal in Valve Plate, Location of Starter Shaft Compression Spring Shim, Direct Engine-Driven Charging Pump Details and Relative Location of Parts, Engine-Driven Hydrostarter Charging Pump Pressure Relief Piston Assembly, Installing Pressure Relief Piston, Back-Up Ring, Seal Ring and Washer in Pump Body with Installer J 7192, Installing Direct Engine-Driven Pump Shaft Oil Seal in Bearing Retainer, Belt-Driven Charging Pump Details and Relative Location of Parts, Installing Belt-Driven Pump Shaft Oil Seal in Bearing Retainer, Proper Installation of Teflon Back-Up Ring, Charging Accumulator with Charging Kit J 6714-02, Fuel System Priming Pump and Relative Location of Parts, Hydraulic Remote Control System for Hydrostarter, Hydraulic Starter Remote Control Master Cylinder Details and Relative Location of Parts, Preparation for Starting Engine First Time, Alternating Current Power Generator Set Operating Instructions, Alternating Current Power Generator Set:preparation for Startting, Alternating Current Power Generator Set: Starting, Alternating Current Power Generator Set:running, Alternating Current Power Generator Set:preparing Generator for Load, Alternating Current Power Generator Set:paralleling, Alternating Current Power Generator Set: Stopping, Operating Instructions for Series 2-53 Power Generator Units in Railroad Refrigeration Cars, Break-In Oils and Additives Marketed for Fuels and Lubricants, Limiting Speed Mechanical Governor and Injector Rack Control Adjustment, Limiting Speed Mechanical Governor and Injector Rack Control Adjustment(V-Type Engine), Limiting Speed Mechanical Governor Adjustment(Variable Low-Speed), Limiting Speed Mechanical Governor(Fast Idle Cylinder), Detroit Diesel 53 Series Operator's Manual (39 pages). So, since I need. Securely lock the adjusting screw locknut, Overtightening the injector rack control tube lever adjusting screws during installation or adjustment can result in damage to the injector control tube. However, if a hot engine adjustment is desired, use the following procedures. While every precaution has been taken in preparation of this blog post, the author assumes no responsibility for errors and omissions. General Information and Specs This engine has a displacement of 5.22 liters and is a 2 cycle, 6 cylinder engine with 4 main bearings. With the engine running at normal operating temperature, loosen the locknut and turn the idle speed adjusting screw until the engine idles at the recommended speed. . 1-717-776-7725. Start the engine and recheck the maximum no load speed. Step Two: Clean any dirt or debris from the rocker cover and remove it. Verify the injector rack of No. Loosen the lock nut and turn the idle speed adjusting screw in or out until the engine idles at 600 rpm. Back out the buffer screw until it projects 9/16 from the boss on the control housing. Detroit:53 Series: Injector Questions For A 6V-53: Ski in NC : 4 - 07-Mar-08 Reply: Ski in NC : 07-Mar-08 : Hugh covered it well. If the rack of the rear injector has become loose, back off the adjusting screw slightly on the adjacent injector rack control lever. At idle Ive . Step 2 Push down on the breaker bar to rotate the engine. Maintaining normal engine operating temperature is particularly important when making the final exhaust valve clearance adjustment. Insert a 0.006 feeler gage between the spring plunger and the plunger guide. The recommended torque of the adjusting screws is 24-36 Lb-in (3-4 N*m). Engine overloaded Their position determines the amount of fuel injected into each cylinder and ensures equal distribution of the load. That is all there is to it. of one valve stem and the rocker . Barring a left-hand rotating marine engine equipped with a Jabsco raw water pump may result in damage to the rubber impeller if the impeller vanes are forced to rotate against their normal direction of deflection. To correct this condition, back off the outer adjusting screw slightly and tighten the inner adjusting screw. 200-250 degrees F. Oil pressure at Full Load should be 40-60 PSI, also at 200-250 degrees F. Dimension. A single-weight variable speed governor name plate is tamped S.W. Insert the clevis pin in the fuel rod and the right cylinder injector control tube lever and position the No. If readjustments of the governor gap is required, the position of the injector racks must be rechecked. After adjusting the exhaust valves and timing the fuel injectors, adjust the governor and the injector rack control levers. For The following gives the lubricating oil pressure and temperature for safe operation: Marine Use at 2800 RPM: The normal pressure is 40-60 PSI, with a minimum of 32 PSI needed. 1). Connect the booster spring and the stop lever spring. The timing can be either std or advanced. Disconnect any linkage attached to the governor levers. 1 of 2 Go to page . Injector fuel control racks in the full-fuel position. Starting a 6V53 Detroit Diesel That Had Been in Storage The Detroit 6V53 will last for many years. Accurate tune-up adjustments are very important if maximum performance and economy are to be obtained. After the exhaust valve clearance has been adjusted, time the fuel injectors as follows. Move the spring retaining bolt in the slot of the speed control lever until the center of the bolt is on or slightly over center (toward the idle speed position) of an imaginary line through the bolt, lever shaft and eyebolt. It is not necessary to make a final hot engine exhaust valve clearance adjustment after a cold engine adjustment has been performed. Tighten the lock nut with a half inch wrench. The recommended idle speed is 550 rpm, but may vary with special engine applications. Position the No 2R 3R and 4R injector rack control levers as outlined for the left cylinder bank in Steps 9 through 11. The Detroit Diesel 453 engine, also known as 4-53 was a heavy-duty diesel engine that was designed to be used for multiple applications, including but not limited to -commercial, agricultural, and marine equipment. Remove the loose dirt from the valve rocker cover(s) and remove the cover(s). Whether you need a small part, or a heavier item, we can get it to you fast. Fuel consumption for marine engines ranges between 2.5 gallons per hour at 1500 RPM and 12 gallons per hour at 2800 RPM. Loosen the lock nuts on the eye bolt at the opposite end of the booster spring. Detroit Diesel Series 53 Repair Shop Service Manual Guide - PicClick CA See 4L injector rack control levers as outlined in Steps 9 & 10. Incorrectly installed ring set Connect the booster spring and stop lever spring. Place a 0.026 feeler gauge between the end of one valve stem and the rocker arm bridge. Position the injector rack control levers. Hello diesel heavy trucks expert, Please show me how to adjust injector stroke of E3 detroit S60 /2008 injector into cylinder head. Try us today, and you will see we are the best source for parts online. Detroit Diesel Engine Service Manuals PDF, Wiring Diagrams Then alternatively tighten both the inner and outer adjusting screws. The blower drive speed can be different. This will place the rear injector rack in the full fuel position. . Hold the stop lever in the run position and using a screwdriver, press downward on the injector control rack. The sound and smell of 6-71s starting up in the morning, smells and sounds like victory, to borrow a phrase. Loosen the booster spring retaining nut on the speed control lever. With the engine running at normal operating temperature, turn the buffer screw so that it contacts the differential lever as lightly as possible and still eliminates engine roll. The recommended torque of the adjusting screws is 24-36 lb-in (3-4N*m). If required add shims to obtain the necessary operating speed. Use these values to ensure your engine will properly crank when starting. Timing. Lower the speed droop by increasing the spring tension. Detroit:53 Series: rack adjustment / David : 5 - 09-Oct-06 Original Post : 08-Oct-06 : One of my 453s has a different sound from the other. Recheck the clearance. Then alternately tighten both the inner and outer adjusting screws. The engine control module is easier to adjust in newer engines compared to older versions. Then alternatively tighten both the inner and outer adjusting screws. The temperature should be between 205 and 235 degrees F. Industrial Use at 2500 RPM: The normal pressure is 40-60 PSI, with a minimum of 36 PSI needed, and a temperature between 200 to 235 degrees F. Vehicle use at 2600 RPM: Normal pressure is 40-60 PSI with a minimum of 36 PSI. 5. The recommended torque of the adjusting screws is 24-36 lb-in (3-4N*m). Fill the fuel tank with proper grade Diesel fuel. Posted: Mon Jul 27, 2009 2:49 pm Post subject: Re: 4-53 detroit,governor issues. If required, loosen the lock nut and turn the adjusting screw in or out until a slight drag is noted on the feeler gage. DD-O-53 SERIES, Detroit 2-53, Detroit 3-53, Detroit 4-53, Detroit 6V-53, Detroit 8V-53, Detroit 2-Cycle Engine Operators Manual, Detroit Created Date: To reduce the force, back off the inner locknut and tighten the outer locknut to increase the tension on the booster spring. PDF Detroit Diesel Engine Tools Detroit 53 Series - remove injector - boatdiesel.com
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