Use new valve rocker cover gaskets after the tune-up is completed. Accurate tune-up adjustments are required. PDF Detroit 2-53 | 3-53 | 4-53 | 6V-53 | 8V-53 Manual 3R injector rack control levers are adjusted, do not try to alter their settings. 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. Adjust the exhaust valve clearance, cold. Step Five: After taking the feeler gauge out, hold the push rod with a 5/16 th inch wrench. Note: Computer CD, Not Printed Material !! If the lever does return to the idle position, continue to increase the spring tension until the point is reached that it will not return to idle. Step Two: Make sure the pulleys are functional and able to move. Governor Spring Assemblies. Your Free Guide Has Been Sent. The speed control lever should return to the idle position. Fill with a proper grade of lubricating oil. While every precaution has been taken in preparation of this blog post, the author assumes no responsibility for errors and omissions. Insert a 0.006 feeler gage between the spring plunger and the plunger guide. DieselPro is a marine engines parts specialist. With the engine running at normal operating temperature, back out the buffer screw to avoid contact with the differential lever. 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. With the engine stopped and at normal operating temperature, adjust the governor gap as follows. 8V-53 Engine. At idle Ive . Be sure all of the levers are free on the injector control tube. Setting the valves, injectors, and running the rack on my 4-53T. Faulty intercooler or aftercooler (for turbo engines only) Start the engine and move the speed control lever to the maximum speed position and release it. NOTICE: Overtightening the injector rack control tube lever adjusting screws during installation or adjustment can result in damage to the injector control tube. How to Adjust a Detroit Fuel Injector | It Still Runs 2L injector rack control lever and tighten the outer adjusting screw. The recommended torque of the adjusting screws is 24-36 lb-in (3-4N*m). The push rod adjustment wrenches needed to adjust the timing and valves are: M3518 and M3517B. I found one or two injectors not firing. Also, when you ran one out of fuel, you had to refill the filters and take the valve cover(s) Off to bleed the . The recommended torque of the adjusting screws is 24-36 lb-in (3-4N*m). CAUTION: Before starting an engine after an engine speed control adjustment or after removal of the engine governor cover and lever assembly, the service technician must determine that the injector racks move to the no-fuel position when the governor stop lever is placed in the stop position. Fuel consumption for marine engines ranges between 2.5 gallons per hour at 1500 RPM and 12 gallons per hour at 2800 RPM. Horsepower is between 112 BHP at 1500 RPM and has a maximum of 172 BHP at 2800 RPM. Hold the stop lever in the run position and, using a screwdriver, press downward on the injector control rack. 2. If the rack is found to be too tight with the Two Screw Assembly, back off the inner adjusting screw slightly and tighten the outer adjusting screw. 1 - Timing Fuel Injector. Interestingly, the 71 series designation refers to the cubic capacity of one cylinder, measured in cubic inches. Remove the variable speed spring housing and the spring retainer, located inside of the housing from the governor housing. Detroit 53 Series - adjusting idle - marinediesels.com Step Three: Loosen the exhaust valve rocker arm. Move the speed control lever to the maximum speed position. But sometimes that makes it hard to see the detail. Normally, when performing a tune-up on an engine in service, it is not only necessary to check the various adjustments for a possible change in the settings. . The sound and smell of 6-71s starting up in the morning, smells and sounds like victory, to borrow a phrase. 3R injector rack control levers are adjusted, do not try to alter their settings. If the rack does not return to its original position, it is too loose. Discard the gaskets. Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. Adjust the idle speed. Filters dirty, supply pump weak causing low supply pressure, shutdown solenoid not fully open, valves and racks off a hair of adjustment, Detroit Diesel Injector Timing Tool . Ill add a couple things: Starting a 6V53 Detroit Diesel That Had Been in Storage. The compression ratio is 17:1 for standard engines or 21:1 for natural engines. Connect the booster spring and stop lever spring. 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. To correct this condition back off the outer adjusting screw slightly and tighten the inner adjusting screw. The chart below shows the most common questions asked by owners of Detroit Diesel engines 6V53 natural when trying to troubleshoot why their engines underperform. If necessary, readjust the injector rack adjusting screws until a clearance of at least 1/32 to 1/16 exists. To adjust the remaining injector rack control levers, remove the clevis pin from the fuel rods and the injector control tube levers, hold the injector control racks in the full-fuel position by means of the lever on the end of the control tube and proceed as follows: Turn down the inner adjusting screw of the injector rack control lever until the screw bottoms (injector control rack in the full-fuel position). X It is not necessary to make a final hot engine exhaust valve clearance adjustment after a cold engine adjustment has been performed. Position the No 2R 3R and 4R injector rack control levers as outlined for the left cylinder bank in Steps 9 through 11. All Detroit Diesel Series 53, 71, and 92 engines are e quipped with governor booster springs. . 53 series detroit injector height - Yesterday's Tractors of one valve stem and the rocker . For this engine, a model number will always start with 506, and an example of a full model number would be 5063-5200. One other thing, you needed special Detroit feeler gauges to set injector height and valve lash. Loosen the locknut and adjust the maximum speed adjusting screw until the required no load speed is obtained. Hold the bolt and tighten the lock nut. Here are the steps you can take to troubleshoot your Detroit Diesel fuel injector: 1. 4-53 detroit,governor issues - Tractor Talk Forum Make sure that all intake is unobstructed. Hold the buffer screw and tighten the lock nut. Street, Suite 100, Miami, FL 33128 - USA. Notice: Once the No. Hello diesel heavy trucks expert, Please show me how to adjust injector stroke of E3 detroit S60 /2008 injector into cylinder head. Injectors generally go for $65-80 each and a spring loaded injector control tube will run you maybe $30. Step Two: Clean any dirt or debris from the rocker cover and remove it. Step Four: Adjust the push rod to get a smooth pull with the feeler gauge. The position of the injector control rack levers must be correctly set in relation to the governor. DETROIT DIESEL. This will result in a step-up in effort required to move the stop level to the run position and a deflection in the fuel rod (fuel rod deflection can be seen at the bend) If the rack is found to be too tight, back off the inner adjusting screw slightly and tighten the outer adjusting screws. Spent the day examining the timing adjustability on my 4-53 both injector wise and gear train. Click. Check the linkage and throttle movement.-2- Detroit 3-53T Valves, Injectors, Rack - YouTube Adjust the buffer screw. Move the rear injector control rack into the full-fuel position and note that the clearance between the fuel rod and the cylinder head bolt. Tighten the adjusting screw of the rear injector rack control lever until the injector rack clevis is observed to roll up or an increase in effort to turn the screwdriver is noted. We have Detroit 6V53 parts at low prices. Click Here To Go Back To 6V53 Categories Loosen the booster spring retaining nut on the speed control lever. 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. The correct exhaust valve clearance at normal engine operating temperature is important for smooth, efficient operations of the engine. Defective injector With the engine stopped and at normal operating temperature, adjust the governor gap as follows: Properly positioned injector rack control levers with the engine at full load will result in the following. Start the engine and move the speed control lever to the maximum speed position and release it. Step Six: Recheck the clearance and adjust if needed. 3L control lever. To correct this condition with the Two Screw Assembly, back off the outer adjusting screw slightly and tighten the inner adjusting screw. Do not press the starter switch again while the starter motor is rotating. The plate would have 2 to 4 digit number that may start with a letter. Detroit Diesel 6V53 Usefull Information If No 1 does not "spring" back upward, turn the No. Remove Bolts. 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. 14.1 Exhaust Valve Clearance Adjustment. The rack should tilt downward and , when the pressure of the screwdriver is released the control rack should spring back upwards. . Place a .027" feeler gage, J 9708, between the end. Detroit 53 Series - throttle linkage - Boatdiesel.com Discard the gasket(s). Exhaust Valve Clearance Adjustment (Cold Engine) The above steps should result in placing the governor linkage and control tube in the respective position that they will attain while the engine is running at full load. Hold the buffer screw and tighten the locknut. Do not raise the engine idle speed more than 15 rpm with the buffer screw. If required add shims to obtain the necessary operating speed. The recommended torque of the adjusting screws is 24-36 lb-in (3-4N*m). Detroit:92 Series: NOt getting Full RPMs: clark leighs : 2 - 24-Apr-12 Reply: clark leighs : 24-Apr-12 : A fuel restriction can cause low revs without black smoke. 11) Insert the clevis pin in the fuel rods and the injector control tube levers. Insert the clevis pin in the fuel rod and the left bank control tube lever. The timing can be either std or advanced. Place the small end of the injector timing gage in the hole provided in the top of the injector body with the flat of the gage toward the injector follower. The recommended torque of the adjusting screws is 24-36 Lb-in (3-4 N*m). NOTICE: Overtightening of the injector rack control lever adjusting screws during installation or adjustment can result in damage to the injector control tube. Place the stop lever in the run position and the speed control lever in the idle position. With the idle speed set, adjust the booster spring as follows: The variable speed mechanical governor assembly is mounted at the front end of the 8V engine. 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. Application: 53, 71, 92. Do not raise the engine idle speed more than 15 rpm with the buffer screw. You must have JavaScript enabled in your browser to utilize the functionality of this website. . At idle Ive depressed the injector. 6) Hold the adjusting screw and tighten the lock nut. Make sure to wait and allow the engine to cool if it did not start within 30 seconds. 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. 200-250 degrees F. Oil pressure at Full Load should be 40-60 PSI, also at 200-250 degrees F. This should result in placing the governor linkage and the control tube in the respective positions that they will attain while the engine is running at full load. 10) When all of the injector rack control levers are adjusted, recheck their settings. 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. Remove Exhaust Manifold. 6V-53 ENGINE. Use a new gasket and install the governor cover. Connect the linkage to the governor levers. 4) To be sure of proper rack adjustment, hold the stop lever in the run position and press down on the injector rack with a screwdriver or finger tip and note rotating movement of the injector control rack. A split stop can only be used with a solid stop. Detroit:53 Series: rack adjustment 453: David : 16 - 20-Jan-07 Original Post : 12-Dec-06 : I have been reading through the adjustment for the rack in the service manual. 10) Use a new gasket and reinstall the valve rocker cover. Step Three: Drain any preservative oil from the engine and replace the drain plug. With the maximum no-load speed properly adjusted, adjust the idle speed as follows: With the engine idle speed properly set, adjust the buffer screw as follows. An overspeeding engine can result in engine damage which could cause personal injury. If a 0.026 feeler valve (c.006) will pass between the valve stem and the rocker arm bridge, the valve clearance is satisfactory. 2 injectors. To determine if you have a turbo engine, or a natural engine, look at the sixth digit. If readjustments of the governor gap is required, the position of the injector racks must be rechecked. It . TIMING FUEL INJECTOR - TM-5-3810-293-14-P-30434: TM-5-3810-293-14-P-3 Crane Truck Mounted Hydraulic 25 Ton (CCE) Manual . 6. Maintaining normal engine operating temperature is particularly important when making the final exhaust valve clearance adjustment. Popular Categories If you need to visit us for other parts, be sure to check out our other best-selling parts categories: You have no items in your shopping cart. 2L injector rack moves into the full-fuel position. Please select from below to jump to a specific section. Detroit Diesel Engine Tune-Up Kit 53, 71 & 92 | Kent-Moore | J-24790-D Detroit 4-53 diesel engine injectors Detroit 4-53 diesel engine injectors autotech41 (Automotive) (OP) 1 Jul 10 15:11. we have a 4-53 diesel engine i am not much of a diesel person, but this thing has a miss/ low power it is in a log skidder, i was wondering how to test the injectors this is what the owner suspects. 1 of 2 Go to page . Step Seven: Set the air shut-off valveto the open or reset position. Please use the navigational links to explore our website. } Defective starter Make sure that all intake is unobstructed. To be sure of proper adjustment, hold the stop lever in run position and press down on the injector rack with a screwdriver or finger tip and now that the rotating movement of the injector control rack. Contaminated fuel For each 0.001 in shims added, the operating speed will increase approximately 2 rpm. After the adjustments are completed, reconnect and adjust the supplementary governing device. 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. official Detroit Diesel specifications. Adjust the variable speed spring eyebolt until of the threads project from the outer locknut. I cut my teeth on the Detroit Diesel 2 cycles . Check the gap and readjust if necessary. TUNE-UP--DETROIT DIESEL ENGINE. Then stop the engine and make the following adjustments if required: If the maximum no-load speed is raised or lowered more than 50 rpm by the installation or removal of shims recheck the governor gap. Detroit 6V53 Torque and Horsepower The torque and horsepower specs are based on a 500ft elevation with an air temperature of 85 degrees Fahrenheit. 5. The recommended idle speed is 550rpm but may vary with special engine applications. Step Four: Adjust the push rod to get a smooth pull with the feeler gauge. Related Products for Detroit Diesel 53 Series. Manuals; . Turn the inner adjusting screw of the No 3L injector rack control lever down until a slight movement of the control tube is observed, or a step up in effort to turn the screw driver is noted. For each 0.001 in shims added, the operating speed will increase 2rpm. The cooling system holds 3.5 gallons, or 13.2 liters. Mark the front of the impeller for easy reinstallation. Re: 353 detroit valve adjustment. 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. Valves set at .026 on 4 valve engine or .013 on 2 valve engine. Thread starter Autocar; Start date Jan 7, 2010; 1; 2; Next. When the settings are correct, the rack of each injector must be snug on the ball end of its respective control lever. . Loosen all of the inner and outer injector rack control lever adjusting screws on both injector control tubes. .tituloscat-list { Step Five: Install the battery Step Six: Blow out any dust or debris from the air intake, and make sure that it is not wet, to prevent water from mixing with the fuel. Doing this will result in engine damage. . 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. I love seeing the videos of racks being run and injectors being timed, in the engine. Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. 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. The cooling system holds 3.5 gallons, or 13.2 liters. Place circuit breaker to off position. 2L injector rack control lever down until the No. 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. So if you are looking for Marine Parts, you have come to the right place. Engine overspeed will result if the injector racks cannot be positioned at no fuel with governor stop lever. Back out the buffer screw until it extends approximately from the lock nut. With the engine running at normal operating temperature back out the buffer screw to avoid contact with the differential lever. The recommended torque of the adjusting screws is 24-36 Lb-in (3-4 N*m). On turbocharged engines, the fuel (air box) modulator lever and roller assembly must be positioned free from cam contact. 6V-53 Engine. Though it is rare, some Detroit 6V53 engines were made for the Brazilian market, and these have a serial number that starts with DB, such as DB7186. Loosen all of the inner and outer injector rack control lever adjusting screws or the adjusting screws and locknuts. Loosen the lock nut and turn the idle speed adjusting screw in or out until the engine idles at 600 rpm. Geartrain makes noises 780 PLUS PAGES PDF . PDF Detroit Diesel Governor Booster Spring Tension Adjustment If a stop lever is provided, secure it in the stop position. Most of our parts would work in a variety of applications, whether on land, or on a boat. 53 series detroit injector height . Engine overheating Broken or worn cylinder parts Hold the stop lever in the run position and using a screwdriver, press downward on the injector control rack. In Stock. Remove the clevis pin from the fuel rod and the right cylinder bank injector control tube. Back out the buffer screw until it extends approximately from the locknut. POSSIBLE REASON Defective raw water pump (marine engines only) With the engine running at normal operating temperature, turn the buffer screw in so that it contacts the differential lever as lightly as possible and still eliminates engine roll. Detroit Diesel 53 Series Fuel Injector Timing Tool | 6V53 | 8V53 Here we have a general checklist for starting an engine that had been unused for an extended period of time. Timing. : Once the No. Engine Speed Droop. Additional service information is available in the Detroit Diesel Series 60 Service Manual (DDC-SVC-MAN-0005).
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