0436979 PISTON ASSY., 0.030 in. O.S. JOHNSON
BJ50DTLEDC, BJ50DTLEUR, BJ60ELEDR, BJ60ELEUA, BJ60TLECM, BJ70ELECB, BJ70ELEDA, BJ70ELEUM, BJ70PLEEE, BJ70PLSIS, BJ70PLSSD, J40JPLEEC, J40JPLSIA, J40JPLSSR, J50DTLECA, J50DTLEOS, J50TTLECA, J50TTLEDC, J50TTLEOS, J50TTLEUR, J60ELEOC, J60ELERS, J60PLEEB
PISTON
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Compatible with Arcticcat 0436-979 Clear Windshield With Black Accent T1StoM68965
Generic High-Quality Materials: Crafted from durable, corrosion-resistant materials for long-lasting performance in various automotive, marine, and industrial applications. || Easy Installation: Designed for quick and hassle-free installation, saving time and effort in your repair or upgrade projects. || Wide Compatibility: Versatile components that fit a broad range of vehicles and equipment, ensuring a seamless integration with existing systems. || Reliable Performance: Engineered to provide consistent, dependable operation under harsh and demanding conditions, ensuring safety and efficiency. || Multiple Options Available: Available in various sizes and configurations to meet specific needs, offering flexibility and convenience for your projects.
Generic High-Quality Materials: Crafted from durable, corrosion-resistant materials for long-lasting performance in various automotive, marine, and industrial applications. || Easy Installation: Designed for quick and hassle-free installation, saving time and effort in your repair or upgrade projects. || Wide Compatibility: Versatile components that fit a broad range of vehicles and equipment, ensuring a seamless integration with existing systems. || Reliable Performance: Engineered to provide consistent, dependable operation under harsh and demanding conditions, ensuring safety and efficiency. || Multiple Options Available: Available in various sizes and configurations to meet specific needs, offering flexibility and convenience for your projects.
Compatible models:
BJ50DTLEDC
BJ50DTLEUR
BJ60ELEDR
BJ60ELEUA
BJ60TLECM
BJ70ELECB
BJ70ELEDA
BJ70ELEUM
BJ70PLEEE
BJ70PLSIS
BJ70PLSSD
J40JPLEEC
J40JPLSIA
J40JPLSSR
J50DTLECA
J50DTLEOS
J50TTLECA
J50TTLEDC
J50TTLEOS
J50TTLEUR
J60ELEOC
J60ELERS
J60PLEEB
J60PLSID
J60PLSSE
J60TTLECM
J60TTLEDR
J60TTLEOC
J60TTLERS
J60TTLEUA
J70ELEOR
J70ELERC
J70TTLEOR
J70TTLERC
JOHNSON
BRP JOHNSON entire parts catalog list:
- CRANKSHAFT & PISTON » 0436979
BJ60ELEDR, BJ60TLEDR, J60ELEDR, J60TLEDR, SJ60TLEDR 1996
BJ60ELEUA, BJ60TLEUA, J60ELEUA, J60TLEUA 1997
BJ60TLECM, J60TLECM 1998
BJ70ELECB, BJ70TLECB, J70TLECB 1998
BJ70ELEDA, BJ70TLEDA, HJ70TXEDA, J70TLEDA, SJ70TLEDA 1996
BJ70ELEUM, BJ70TLEUM, HJ70TXEUM, J70TLEUM 1997
BJ70PLEEE, J70PLEEE 1999
BJ70PLSIS, J70PLSIS, J70VLSIS, RJ70PLSIS 2001
BJ70PLSSD, J70PLSSD, RJ70PLSSD 2000
J40JPLEEC 1999
J40JPLSIA, J40JVLSIA 2001
J40JPLSSR 2000
J50DTLECA 1998
J50DTLEOS, J50ELEOS 1995
J50TTLECA 1998
J50TTLEDC 1996
J50TTLEOS 1995
J50TTLEUR 1997
J60ELEOC, J60TLEOC 1995
J60ELERS, J60ELERV, J60TLERS, J60TLERV 1994
J60PLEEB 1999
J60PLSID, J60VLSID 2001
J60PLSSE 2000
J60TTLECM 1998
J60TTLEDR 1996
J60TTLEOC 1995
J60TTLERS, J60TTLERV 1994
J60TTLEUA 1997
J70ELEOR, J70JLEOS, J70TLEOR 1995
J70ELERC, J70ELERV, J70TLERC, J70TLERV 1994
J70TTLEOR 1995
J70TTLERC, J70TTLERV 1994
Information:
Troubleshooting
Troubleshooting can be difficult. On the following pages there is a list of possible problems. To make a repair to a problem, make reference to the cause and correction.This list of problems, causes, and corrections, will only give an indication of where a possible problem can be, and what repairs are needed. Normally, more or other repair work is needed beyond the recommendations in the list. Remember that a problem is not normally caused only by one part, but by the relation of one part with other parts. This list can not give all possible problems and corrections. The serviceman must find the problem and its source, then make the necessary repairs.Troubleshooting Index
1. Engine Will Not Turn When Start Switch Is On.2. Engine Will Not Start.3. Misfiring or Running Rough.4. Stall at Low rpm.5. Sudden Changes In Engine rpm.6. Not Enough Power.7. Too Much Vibration.8. Loud Combustion Noise.9. Valve Train Noise (Clicking).10. Oil In Cooling System.11. Mechanical Noise (Knock) In Engine.12. Fuel Consumption Too High.13. Loud Valve Train Noise.14. Too Much Valve Lash.15. Valve Rotocoil or Spring Lock is Free.16. Oil at the Exhaust.17. Little or No Valve Clearance.18. Engine Has Early Wear.19. Coolant In Lubrication Oil.20. Too Much Black or Gray Smoke.21. Too Much White or Blue Smoke.22. Engine Has Low Oil Pressure.23. Engine Uses Too Much Lubrication Oil.24. Engine Coolant Is Too Hot.25. Starting Motor Does Not Turn.26. Alternator Gives No Charge.27. Alternator Charge Rate Is Low or Not Regular.28. Alternator Charge Too High.29. Alternator Has Noise.30. Exhaust Temperature Too High.Engine Crankshaft Will Not Turn When Start Switch Is On Engine Will Not Start Misfiring Or Running Rough Stall At Low RPM Sudden Changes in Engine Speed (rpm) Not Enough Power Too Much Vibration Loud Combustion Noise (Sound) Valve Train Noise (Clicking) Oil In Cooling System Mechanical Noise (Knock) In Engine Fuel Consumption Too High Loud Valve Train Noise Too Much Valve Lash Valve Rotocoil Or Spring Lock Is Free Oil At The Exhaust Little Or No Valve Clearance Engine Has Early Wear Coolant In Lubrication Oil Too Much Black Or Gray Smoke Too Much White Or Blue Smoke Engine Has Low Oil Pressure Engine Uses Too Much Lubrication Oil Engine Coolant Is Too Hot Starting Motor Does Not Turn Alternator Gives No Charge Alternator Charge Rate Is Low Or Not Regular Alternator Charge Too High Alternator Has Noise Exhaust Temperature Is Too High Fuel System
Either too much fuel or not enough fuel for combustion can be the cause of a problem in the fuel system.Many times work is done on the fuel system when the problem is really with some other part of the engine. Finding the source of the problem is difficult, especially when smoke is coming from the exhaust. Smoke coming from the exhaust can be caused by a bad fuel injection valve, but it can also be caused by the following:a. Not enough air for good combustion.b. An overload at high altitude.c. Burning of too much oil.d. Not enough compression.Fuel System Inspection
1. Look at the reading on the gauge for fuel pressure. Not enough fuel pressure is an indication of a problem with the components that send fuel to the engine.2. Check the fuel level in the fuel tank. Look at the cap for the fuel tank to make sure the vent is not filled with dirt.3. Check the fuel lines for fuel leakage. Be sure the fuel supply line does not have a restriction or a bad bend.4. Install a new fuel filter. Clean the primary fuel filter if the machine is so equipped.5. Remove any air that may be in the fuel system.6. Inspect the fuel bypass valve to see that there is no restriction to good operation.Testing Fuel Injection Equipment
An easy check can be made to find the cylinder that is misfiring, or running rough, and causing black smoke to come out of the exhaust pipe.Run the engine at the speed that gives misfiring. Loosen the fuel line nut at a fuel injection pump or valve. This will stop the flow of fuel to that cylinder. Do this for each cylinder until a loosened fuel line is found that makes no difference in engine running. Be sure to tighten each fuel line nut after the test before the next fuel line nut is loosened. Check each cylinder by this method. When a cylinder is found where the loosened fuel line nut does not make a difference in engine running, test the injection pump and injection valve for that cylinder.Checking the Fuel Injection Valves
Check the fuel injection valves for:1. Too much carbon on the tip of the nozzle or in the nozzle orifice.2. Wear of the orifice.3. Nozzle screen being dirty.Use the Caterpillar Diesel Fuel Injection Test Bench to test the nozzle.Checking the Fuel Pump Plunger and Lifter Yoke
Check timing dimension for the fuel injection pumps. Make an adjustment if necessary, with the pump housing off the engine. When an adjustment to the timing dimensions is done correctly, fuel injection in the cylinder will be at the correct time. If the timing dimension is too small, fuel injection will be early. If the timing dimension is too large, fuel injection will be late.When there is too much wear on the pump plunger, the lifter yoke may also be worn and there will not be good contact between the two parts. To stop fast wear on the end of a new plunger, install new lifter yokes in the place of those with wear.
WEAR BETWEEN LIFTER YOKE AND PLUNGER
Fig. A illustrates the contact surfaces of a new pump plunger and a new lifter yoke. In Fig. B the pump plunger and lifter yoke have worn considerably. Fig. C shows how the flat end of a new plunger does not make a good contact with a worn lifter yoke. The result is rapid wear to both parts.An injection pump can have a good fuel flow coming from it but not be a good pump because of slow timing that is caused by wear
Troubleshooting can be difficult. On the following pages there is a list of possible problems. To make a repair to a problem, make reference to the cause and correction.This list of problems, causes, and corrections, will only give an indication of where a possible problem can be, and what repairs are needed. Normally, more or other repair work is needed beyond the recommendations in the list. Remember that a problem is not normally caused only by one part, but by the relation of one part with other parts. This list can not give all possible problems and corrections. The serviceman must find the problem and its source, then make the necessary repairs.Troubleshooting Index
1. Engine Will Not Turn When Start Switch Is On.2. Engine Will Not Start.3. Misfiring or Running Rough.4. Stall at Low rpm.5. Sudden Changes In Engine rpm.6. Not Enough Power.7. Too Much Vibration.8. Loud Combustion Noise.9. Valve Train Noise (Clicking).10. Oil In Cooling System.11. Mechanical Noise (Knock) In Engine.12. Fuel Consumption Too High.13. Loud Valve Train Noise.14. Too Much Valve Lash.15. Valve Rotocoil or Spring Lock is Free.16. Oil at the Exhaust.17. Little or No Valve Clearance.18. Engine Has Early Wear.19. Coolant In Lubrication Oil.20. Too Much Black or Gray Smoke.21. Too Much White or Blue Smoke.22. Engine Has Low Oil Pressure.23. Engine Uses Too Much Lubrication Oil.24. Engine Coolant Is Too Hot.25. Starting Motor Does Not Turn.26. Alternator Gives No Charge.27. Alternator Charge Rate Is Low or Not Regular.28. Alternator Charge Too High.29. Alternator Has Noise.30. Exhaust Temperature Too High.Engine Crankshaft Will Not Turn When Start Switch Is On Engine Will Not Start Misfiring Or Running Rough Stall At Low RPM Sudden Changes in Engine Speed (rpm) Not Enough Power Too Much Vibration Loud Combustion Noise (Sound) Valve Train Noise (Clicking) Oil In Cooling System Mechanical Noise (Knock) In Engine Fuel Consumption Too High Loud Valve Train Noise Too Much Valve Lash Valve Rotocoil Or Spring Lock Is Free Oil At The Exhaust Little Or No Valve Clearance Engine Has Early Wear Coolant In Lubrication Oil Too Much Black Or Gray Smoke Too Much White Or Blue Smoke Engine Has Low Oil Pressure Engine Uses Too Much Lubrication Oil Engine Coolant Is Too Hot Starting Motor Does Not Turn Alternator Gives No Charge Alternator Charge Rate Is Low Or Not Regular Alternator Charge Too High Alternator Has Noise Exhaust Temperature Is Too High Fuel System
Either too much fuel or not enough fuel for combustion can be the cause of a problem in the fuel system.Many times work is done on the fuel system when the problem is really with some other part of the engine. Finding the source of the problem is difficult, especially when smoke is coming from the exhaust. Smoke coming from the exhaust can be caused by a bad fuel injection valve, but it can also be caused by the following:a. Not enough air for good combustion.b. An overload at high altitude.c. Burning of too much oil.d. Not enough compression.Fuel System Inspection
1. Look at the reading on the gauge for fuel pressure. Not enough fuel pressure is an indication of a problem with the components that send fuel to the engine.2. Check the fuel level in the fuel tank. Look at the cap for the fuel tank to make sure the vent is not filled with dirt.3. Check the fuel lines for fuel leakage. Be sure the fuel supply line does not have a restriction or a bad bend.4. Install a new fuel filter. Clean the primary fuel filter if the machine is so equipped.5. Remove any air that may be in the fuel system.6. Inspect the fuel bypass valve to see that there is no restriction to good operation.Testing Fuel Injection Equipment
An easy check can be made to find the cylinder that is misfiring, or running rough, and causing black smoke to come out of the exhaust pipe.Run the engine at the speed that gives misfiring. Loosen the fuel line nut at a fuel injection pump or valve. This will stop the flow of fuel to that cylinder. Do this for each cylinder until a loosened fuel line is found that makes no difference in engine running. Be sure to tighten each fuel line nut after the test before the next fuel line nut is loosened. Check each cylinder by this method. When a cylinder is found where the loosened fuel line nut does not make a difference in engine running, test the injection pump and injection valve for that cylinder.Checking the Fuel Injection Valves
Check the fuel injection valves for:1. Too much carbon on the tip of the nozzle or in the nozzle orifice.2. Wear of the orifice.3. Nozzle screen being dirty.Use the Caterpillar Diesel Fuel Injection Test Bench to test the nozzle.Checking the Fuel Pump Plunger and Lifter Yoke
Check timing dimension for the fuel injection pumps. Make an adjustment if necessary, with the pump housing off the engine. When an adjustment to the timing dimensions is done correctly, fuel injection in the cylinder will be at the correct time. If the timing dimension is too small, fuel injection will be early. If the timing dimension is too large, fuel injection will be late.When there is too much wear on the pump plunger, the lifter yoke may also be worn and there will not be good contact between the two parts. To stop fast wear on the end of a new plunger, install new lifter yokes in the place of those with wear.
WEAR BETWEEN LIFTER YOKE AND PLUNGER
Fig. A illustrates the contact surfaces of a new pump plunger and a new lifter yoke. In Fig. B the pump plunger and lifter yoke have worn considerably. Fig. C shows how the flat end of a new plunger does not make a good contact with a worn lifter yoke. The result is rapid wear to both parts.An injection pump can have a good fuel flow coming from it but not be a good pump because of slow timing that is caused by wear
Parts piston JOHNSON:
0322724
0322724 PISTON AND ROD ASSY.,Trim cylinder
100ML79S, 115ETZ78C, 115ML79R, 115TXL77S, 140ML77S, 140ML78C, 140ML79R, 150TL78S, 150TL79C, 175TL77S, 175TL78C, 175TL79R, 200TL77C, 200TL78R, 200TL79A, 235TL70A, 235TL78R, 85ETLR78C, 85ML79R, 85TXLR77S, BJ250CXECB, BJ250CXEDA, BJ250CXEUM, CJ275TLCDC,
0390000
0390000 PISTON ASSY
100ML79S, 115ETZ78C, 115ML79R, 140ML78C, 140ML79R, 150TL78S, 150TL79C, 175TL78C, 175TL79R, 200TL78R, 200TL79A, 235TL70A, 235TL78R, 85ETLR78C, 85ML79R, D100WTLM, J100MLCSC, J100STLCCA, J100STLESB, J100WMLCDR, J100WMLCOC, J100WMLCRS, J100WTLCUA, J100WT
0323848
0323848 PISTON, Pump control
100ML79S, 115ETZ78C, 115ML79R, 140ML78C, 140ML79R, 150TL78S, 150TL79C, 175TL78C, 175TL79R, 200TL78R, 200TL79A, 235TL70A, 235TL78R, 85ETLR78C, 85ML79R, BJ250CXECB, BJ250CXEDA, BJ250CXEUM, CJ275TLCDC, CJ275TLCOS, CJ300TLCDC, CJ300TLCOS, D100WTLM, J100M
0398483
0398483 PISTON ASSY., .030 O.S.
J60ELCEA, J60ELERS, J60ELESM, J60ELETD, J60TTLERS, J60TTLETD, J65WMLCUA, J65WMLESM, J65WMLZ, J70ELCCA, J70ELCDC, J70ELCEM, J70ELCUR, J70ELERC, J70ELESB, J70ELETS, J70TTLERC, J70TTLETS, N65WMLM
0433945
0433945 PISTON ASSY., Std.
J60ELEIB, J60ELENE, J60ELERS, J60ELETD, J60TTLEIB, J60TTLENE, J60TTLETD, J65WMLEIB, J65WMLENE, J65WMLETD, J70ELEIE, J70ELEND, J70ELERC, J70ELETS, J70TTLEIE, J70TTLEND, J70TTLETS
0435262
0435262 PISTON ASSY.
BJ115ELEDR, BJ115ELEUA, BJ115GLECM, BJ115PLEEM, BJ115PLSIE, BJ115PLSSB, BJ50DTLEDC, BJ50DTLEUR, BJ60ELEDR, BJ60ELEUA, BJ60TLECM, BJ70ELECB, BJ70ELEDA, BJ70ELEUM, BJ70PLEEE, BJ70PLSIS, BJ70PLSSD, BJ90ELEDR, BJ90ELEUA, BJ90PLEEB, BJ90PLSID, BJ90PLSSE,
0435547
0435547 PISTON ASSY., Std.
BJ50DTLEUR, BJ60ELEUA, BJ60TLECM, BJ70ELECB, BJ70ELEUM, BJ70PLEEE, BJ70PLSIS, BJ70PLSSD, J40JPLEEC, J40JPLSIA, J40JPLSSR, J50DTLECA, J50TTLECA, J50TTLEUR, J60ELERS, J60PLEEB, J60PLSID, J60PLSSE, J60TTLECM, J60TTLERS, J60TTLEUA, J65RSLC, J65RSLM, J65R
0437409