857139 SCREW, (M8 x 35) Mariner
7A30302LB, 7A30453VZ, 7A40302UD, 7A40302ZZ, 7A40312UZ, 7A40312ZZ, 7A40412ZZ, 7A41412LB, 7A41452IZ, 7A41452UZ, 7A51412ZZ, 7A51452IZ, 7A60412ZZ, 7A60452IZ, 7E41412ZB, 7E51412ZB, 7E51413VZ, 7E60412ZB, 7E60413VZ, 7E60452IZ, 7E60452ZB, 7F25203JB, 7F25203L
SCREW
Price: query
Rating:
Compatible models:
7A30302LB
7A30453VZ
7A40302UD
7A40302ZZ
7A40312UZ
7A40312ZZ
7A40412ZZ
7A41412LB
7A41452IZ
7A41452UZ
7A51412ZZ
7A51452IZ
7A60412ZZ
7A60452IZ
7E41412ZB
7E51412ZB
7E51413VZ
7E60412ZB
7E60413VZ
7E60452IZ
7E60452ZB
7F25203JB
7F25203LB
7F30203HD
7F30203LB
7F40203UD
7F40203ZZ
7F40213UZ
7F40452KD
7F40452LB
7F41452KB
7F41452KD
Mariner
Mariner entire parts catalog list:
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
- CYLINDER BLOCK AND CRANKCASE » 857139
Information:
ORRule of Thumb for tank size with 25% reserve
0.056 × Ave. BHP demand × Hours between refills × 1.25 = _____ gal.0.27 × Ave. BKW demand × Hours between refills × 1.25 = _____ liters Additional tank capacity required for cooling of recirculated fuel in unit injected engines. Tank should be located below level of injectors or nozzles.Piping
Fuel Supply Line Maximum Restriction*: 3600 ... -38.8 kPa (11.6 in Hg)(Vacuum)3400, 3500 ... -30 kPa (9 in. Hg) (Vacuum)3300 ... -20 kPa (6 in. Hg) (Vacuum)3208 ... -27 kPa (8 in. Hg) (Vacuum)Fuel Return Line Maximum Restriction:* 3600 ... 350 kPa (51 psi)3300 ... 20 kPa (3 psi)3208, 3400, 3500 ... 27 kPa (4 psi)*Locate day tank and design piping to meet these requirements.Fuel Properties
Blended (Heavy) fuels are usually described by their viscosity, expressed either in "centistokes" (cSt) or "Seconds Redwood". The Redwood scale at 100°F is being phased out and replaced by the centistokes scale at 50°C. The centistoke viscosity may be preceded by the letters IF for "intermediate fuel" or IBF for "intermediate bunker fuel". For example, IF 180 fuel has a viscosity of 180 cSt at 50°C. The following table gives the approximate relationship between the two scales. Fuel Properties
Density and Specific Gravity
Fuel API Correction Chart - API Gravity Corrected to 60°F
Tooling: Fuel Thermo-hydrometer 1P7408Test Breaker 1P7438Distillate Fuel Temperature
Maximum Fuel Supply Temperature:- Without Power Reduction: 85°F (29°C)Power is reduced 1% for each 10°F (5.6°C) above 100°F (38°C) if engine is running against fuel stop.- Without Injector Damage: 150°F (65°C)Performance Analysis Rules of Thumb
Correction Factors: Power Calculation:
BSFC Tolerances
Performance curves represent typical values obtained under normal operating conditions. Ambient air conditions and fuel used will affect these values. Each of the values may vary in accordance with the following tolerances:Exhaust Stack Temperature 42 DEG C 75 DEG FIntake Manifold Pressure-Gage 10 kPa 3 in HgPower 3 PercentFuel Consumption 6 g/kW-hr .010 lb/hp-hrFuel Rate 5 PercentConditions
Ratings are based on SAE J1349 standard conditions of 100 kPa (29.61 in Hg) and 25°C (77°F). These ratings also apply at ISO 3046/1, DIN 6271 and BS 5514 standard conditions of 100 kPa (29.61 in Hg), 27°C (81°F) and 60% relative humidity.Fuel Rates are based on fuel oil of 35° API [16°C (60°F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C (85°F) and weighing 838.9 g/liter (7.001 lbs/U.S. gal).Additional Formulas Used to Develop Marine Par Curves
For Torque Check GPH proceed as follows:Torque Check GPH = TQ COR. Fuel Rate (G/MIN) ÷ 454 × 60 = LBS/HRLBS/HR ÷ 7.076 = GPHFor BSFC proceed as follows:BSFC = Adjusted CSFC (G/kW HR) ÷ 454 = LBS/kW HRLBS/kW HR ÷ 1.34 = BSFC (LBS/HP HR)Recommended "Guide Line" Gas Supply Pressures for Caterpillar Gas Engines - All Values in PSIG (kPag) Natural Gas
Gas Regulator Capacity Chart
Fuel Gas Methane Numbers
Physical Constants of Gases:
Air-Fuel Ratio Adjustment for Initial Start-up:
Fuel Consumption Calculation
Published fuel consumption values are for 905 BTU/FT3 LHV. To calculate fuel consumption for other fuel gas, the following equation can be used: Special Lube Oil Information for Gas Engines:
Condemning limits
Alternate Oil Analysis (additional test procedures for more data) -1Differential infrared analysis of used oil must not exceed the following absorbance/CM:
Scheduled Oil Sampling If analysis of the used oil at the recommended oil change interval exceeds the condemning limits, the following courses of action can be taken:1. Modify the jacket water temperature and/or adjust the air-to-fuel to minimize the oil degradation rate.2. Shorten the oil change interval.3. Work with your oil supplier to arrive at an oil that will not exceed the limits.Maximum PPM (Parts Per Million) of Wear Metals Detected at 750 Hours to Achieve Projected Overhaul Interval
Oil Failure
Causes and Avoidance
Symptoms of oil failure are stuck piston rings, heavy piston deposits, sludged oil, plugged oil filters, rapid ring and liner wear, and high copper concentrations in oil analysis.It is important that oil analysis measure oxidation and nitration since they result in corrosive wear and accelerate oil degradation. Oxidation and nitration cause oil to thicken and form lacquer and maroon-colored deposits.The nitration rate of an oil is associated with the air-to-fuel ratio for the engine. There is evidence that suggests operating the engine with an air-to-fuel ratio between 10:1 and 11:1 promotes rapid nitration of the oil. This is the normal air-to-fuel ratio range for most Caterpillar Natural Gas Engines and permits the optimum fuel consumption at rated power. In this range, nitrous oxide (NOx) as measured in the exhaust stream is at its highest level. This range may cause the oil to degrade at an unacceptable rate.If nitration is determined to be the principal reason for oil degradation, it may be necessary to adjust the air-to-fuel ratio either higher or lower to minimize the nitration rate.If the air-to-fuel ratio is changed, it must be done with care because it may have a negative effect on the power of the engine or result in excessive exhaust temperature which could affect the service life of the engine.Engine Data
0.056 × Ave. BHP demand × Hours between refills × 1.25 = _____ gal.0.27 × Ave. BKW demand × Hours between refills × 1.25 = _____ liters Additional tank capacity required for cooling of recirculated fuel in unit injected engines. Tank should be located below level of injectors or nozzles.Piping
Fuel Supply Line Maximum Restriction*: 3600 ... -38.8 kPa (11.6 in Hg)(Vacuum)3400, 3500 ... -30 kPa (9 in. Hg) (Vacuum)3300 ... -20 kPa (6 in. Hg) (Vacuum)3208 ... -27 kPa (8 in. Hg) (Vacuum)Fuel Return Line Maximum Restriction:* 3600 ... 350 kPa (51 psi)3300 ... 20 kPa (3 psi)3208, 3400, 3500 ... 27 kPa (4 psi)*Locate day tank and design piping to meet these requirements.Fuel Properties
Blended (Heavy) fuels are usually described by their viscosity, expressed either in "centistokes" (cSt) or "Seconds Redwood". The Redwood scale at 100°F is being phased out and replaced by the centistokes scale at 50°C. The centistoke viscosity may be preceded by the letters IF for "intermediate fuel" or IBF for "intermediate bunker fuel". For example, IF 180 fuel has a viscosity of 180 cSt at 50°C. The following table gives the approximate relationship between the two scales. Fuel Properties
Density and Specific Gravity
Fuel API Correction Chart - API Gravity Corrected to 60°F
Tooling: Fuel Thermo-hydrometer 1P7408Test Breaker 1P7438Distillate Fuel Temperature
Maximum Fuel Supply Temperature:- Without Power Reduction: 85°F (29°C)Power is reduced 1% for each 10°F (5.6°C) above 100°F (38°C) if engine is running against fuel stop.- Without Injector Damage: 150°F (65°C)Performance Analysis Rules of Thumb
Correction Factors: Power Calculation:
BSFC Tolerances
Performance curves represent typical values obtained under normal operating conditions. Ambient air conditions and fuel used will affect these values. Each of the values may vary in accordance with the following tolerances:Exhaust Stack Temperature 42 DEG C 75 DEG FIntake Manifold Pressure-Gage 10 kPa 3 in HgPower 3 PercentFuel Consumption 6 g/kW-hr .010 lb/hp-hrFuel Rate 5 PercentConditions
Ratings are based on SAE J1349 standard conditions of 100 kPa (29.61 in Hg) and 25°C (77°F). These ratings also apply at ISO 3046/1, DIN 6271 and BS 5514 standard conditions of 100 kPa (29.61 in Hg), 27°C (81°F) and 60% relative humidity.Fuel Rates are based on fuel oil of 35° API [16°C (60°F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C (85°F) and weighing 838.9 g/liter (7.001 lbs/U.S. gal).Additional Formulas Used to Develop Marine Par Curves
For Torque Check GPH proceed as follows:Torque Check GPH = TQ COR. Fuel Rate (G/MIN) ÷ 454 × 60 = LBS/HRLBS/HR ÷ 7.076 = GPHFor BSFC proceed as follows:BSFC = Adjusted CSFC (G/kW HR) ÷ 454 = LBS/kW HRLBS/kW HR ÷ 1.34 = BSFC (LBS/HP HR)Recommended "Guide Line" Gas Supply Pressures for Caterpillar Gas Engines - All Values in PSIG (kPag) Natural Gas
Gas Regulator Capacity Chart
Fuel Gas Methane Numbers
Physical Constants of Gases:
Air-Fuel Ratio Adjustment for Initial Start-up:
Fuel Consumption Calculation
Published fuel consumption values are for 905 BTU/FT3 LHV. To calculate fuel consumption for other fuel gas, the following equation can be used: Special Lube Oil Information for Gas Engines:
Condemning limits
Alternate Oil Analysis (additional test procedures for more data) -1Differential infrared analysis of used oil must not exceed the following absorbance/CM:
Scheduled Oil Sampling If analysis of the used oil at the recommended oil change interval exceeds the condemning limits, the following courses of action can be taken:1. Modify the jacket water temperature and/or adjust the air-to-fuel to minimize the oil degradation rate.2. Shorten the oil change interval.3. Work with your oil supplier to arrive at an oil that will not exceed the limits.Maximum PPM (Parts Per Million) of Wear Metals Detected at 750 Hours to Achieve Projected Overhaul Interval
Oil Failure
Causes and Avoidance
Symptoms of oil failure are stuck piston rings, heavy piston deposits, sludged oil, plugged oil filters, rapid ring and liner wear, and high copper concentrations in oil analysis.It is important that oil analysis measure oxidation and nitration since they result in corrosive wear and accelerate oil degradation. Oxidation and nitration cause oil to thicken and form lacquer and maroon-colored deposits.The nitration rate of an oil is associated with the air-to-fuel ratio for the engine. There is evidence that suggests operating the engine with an air-to-fuel ratio between 10:1 and 11:1 promotes rapid nitration of the oil. This is the normal air-to-fuel ratio range for most Caterpillar Natural Gas Engines and permits the optimum fuel consumption at rated power. In this range, nitrous oxide (NOx) as measured in the exhaust stream is at its highest level. This range may cause the oil to degrade at an unacceptable rate.If nitration is determined to be the principal reason for oil degradation, it may be necessary to adjust the air-to-fuel ratio either higher or lower to minimize the nitration rate.If the air-to-fuel ratio is changed, it must be done with care because it may have a negative effect on the power of the engine or result in excessive exhaust temperature which could affect the service life of the engine.Engine Data
Parts screw Mariner:
40011107
40011107 SCREW, HOUSING TO ADAPTOR PLATE (16MM)
7006201CD, 7006201HB, 7006201TB, 7008218EW, 7008237, 7010207HB, 7010312DT, 7011201TB, 7015201LD, 70152374D, 7016207CD, 7020201HB, 7020201NC, 7020201TB, 7031203GD, 7031207CD, 7031207LF, 7031312TB, 7041203GB, 70432037D, 7043213HD, 7043213TD, 7043302TD,
40011151
40011151 SCREW, (M8 x 35) Stainless Steel
7002201DK, 7002201HB, 7002201SK, 7002201UB, 7003201BK, 70432037D, 7043213HD, 7043213TD, 7043302TD, 7043412TB, 7043412TD, 7050302ED, 7050312TB, 7050312UB, 7050412TB, 7050412TD, 7050412UB, 7050412YD, 7055207GD, 7055207HB, 7055207TF, 7060412ET, 7075217C
40011 68
40011 68 SCREW, (M3.5 x 20) Stainless Steel
7006201CD, 7008218EW, 70152374D, 7020201HB, 7031203GD, 7031207CD, 7031207LF, 7041203GB, 70432037D, 7075217CD, 7075217HD, 7100412CD, 7100412HB, 7F25201GD, 7F25203JB, 7F30203HD, 7F40452KD, 7F40452LB, 7F41452KB, 7F41452KD, 7F50352HD, 7F50412DD
825033 95
825033 95 SCREW (M9 X 1.5 X 95)
7A30302LB, 7A30453VZ, 7A40302UD, 7A40302ZZ, 7A40312UZ, 7A40312ZZ, 7A40412ZZ, 7A41412LB, 7A41452IZ, 7A41452UZ, 7A51412ZZ, 7A51452IZ, 7A60412ZZ, 7A60452IZ, 7E41412ZB, 7E51412ZB, 7E51413VZ, 7E60412ZB, 7E60413VZ, 7E60452IZ, 7E60452ZB, 7F25201GD, 7F25203J
40139 30
40139 30 SCREW, (M5 x 30)
7006201HB, 7006201TB, 7010207HB, 7011201TB, 7015201LD, 7020201HB, 7020201TB, 7031203GD, 7031207LF, 7031312TB, 7041203GB, 7043213HD, 7043213TD, 7043302TD, 7043412TB, 7043412TD, 7050312TB, 7050312UB, 7050412TB, 7050412TD, 7050412UB, 7055207HB, 7055207T
79953Q 2
79953Q 2 SCREW KIT, (.375-16 x .250) Drain (.375-16 X .25)
7006201HB, 7006201TB, 7010207HB, 7011201TB, 7015201LD, 7020201HB, 7020201TB, 7031203GD, 7031207LF, 7031312TB, 7041203GB, 7043213HD, 7043213TD, 7043302TD, 7043412TB, 7043412TD, 7050312TB, 7050312UB, 7050412TB, 7050412TD, 7050412UB, 7055207HB, 7055207T
40074 55
40074 55 SCREW, (M6 x 55)
7A30302LB, 7A30453VZ, 7A40302UD, 7A40302ZZ, 7A40312UZ, 7A40312ZZ, 7A40412ZZ, 7A41412LB, 7A41452IZ, 7A41452UZ, 7A51412ZZ, 7A51452IZ, 7A60412ZZ, 7A60452IZ, 7E41412ZB, 7E51412ZB, 7E51413VZ, 7E60412ZB, 7E60413VZ, 7E60452IZ, 7E60452ZB, 7F25203JB, 7F25203L
79953Q04
79953Q04 SCREW KIT, Drain
7135D73ZY, 7A30453VZ, 7A40302ZZ, 7A40312ZZ, 7A40412ZZ, 7A41452IZ, 7A51412ZZ, 7A51452IZ, 7A60412ZZ, 7A60452IZ, 7E41412ZB, 7E51412ZB, 7E51413VZ, 7E60412ZB, 7E60413VZ, 7E60452IZ, 7E60452ZB, 7F40203ZZ