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Measurement of blow-by gas of diesel generator rental engine near Fenghua


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  Measurement of blow-by gas measurement of diesel generator leased engines near Fenghua, technical support for measurement of blow-by gas of diesel generator leased near Fenghua, rental cost of diesel engine leased generators near Fenghua, Fenghuahua Nearby diesel generator rental engine blow-by gas measurement price specifications information query, where is the diesel generator rental engine blow-by gas measurement near Fenghua, where is the Fengfeng near diesel generator rental engine blow-by gas measurement, how much is Fenghua near diesel generator rental engine blow-by gas Contact phone nearby, Ningbo Rixin Power Technology Co., Ltd. 

Cummins B3.3 and QSB3.3 engine repair manual crankcase blow-by gas measurement

table of Contents

Overview

Excessive crankcase blow-by indicates that Cummins B3.3 and QSB3.3 engines or related components of Cummins B3.3 and QSB3.3 engines have failed, causing combustion gas or air to leak into the crankcase. As a result, the resulting pressure is higher than the normal crankcase pressure, which increases the level of blow-by gas.

This step describes how to measure crankcase blow-by and how to identify a failed component.

The general purpose of blow-by gas measurement is to:

Inspection of running-in of Cummins B3.3 and QSB3.3 engines after reinstallation

For open crankcase ventilation systems, excess oil overflows the crankcase breather tube

(Often referred to as oil take-out) for troubleshooting and troubleshooting

For closed crankcase ventilation system, troubleshoot and troubleshoot oil entering the air intake system

For Cummins B3.3 and QSB3.3 engines equipped with crankcase pressure sensors, troubleshoot and eliminate crankcase pressures that are too high

Diagnose and eliminate possible internal damage to Cummins B3.3 and QSB3.3 engines, such as worn piston rings, valve stem seals or ducts, turbochargers, air compressors, and more.

Note: For information and guidelines on specific crankcase gas (blowby) symptoms, refer to the corresponding Cummins B3.3 and QSB3.3 Engine Maintenance Manual Section TS crankcase excess gas (blowby) troubleshooting symptom tree.

The following steps provide some general guidelines for the measurement of blowby gas for these situations.

Note: Some illustrations in this step do not reflect actual Cummins B3.3 and QSB3.3 engine configurations. In any case, the steps are the same.

It is worth noting that the terms "channeling gas" and "carry-out (oil overflowing respirator tube)" are often used interchangeably.

Excessive oil will overflow the respirator tube when measuring blow-by gas, so the amount of oil will directly affect the measurement results of blow-by gas.

The blow-by gas measurement results are also affected by the accumulation of oil on the metering holes of the blow-by gas measurement service tool. This reduces the size of the metering hole, and the measurement result is often higher than the actual blow-by gas measurement.

If so, some steps must be taken:

Find different measurement positions on Cummins B3.3 and QSB3.3 engines to measure blow-by gas (oil filler port, oil filler cap, unused turbocharger discharge position, etc.)

Measure the residual oil on the respirator before blow-by and let it dry completely.

Determine if there are some factors that could cause the respirator to be filled with oil, such as:

Incorrect oil level

Vehicle operation (excessive tilt, excessive Cummins B3.3 and QSB3.3 engines turning left and right, back and forth)

Cummins B3.3 and QSB3.3 engine internal components cause the oil to deflect towards the respirator cavity (piston cooling nozzle, auxiliary oil drain pipe, etc.)

Determine if there is another respirator option for Cummins B3.3 and QSB3.3 engines under repair.

The tools used to measure blow-by gas are generally similar in structure. The size of the metering holes is their main difference. The metering holes are designed with different sizes to more accurately measure blow-by gas to meet the needs of various Cummins B3.3 and QSB3.3 engine configurations and rated power. This is because Cummins B3.3 and QSB3.3 engine blow-by depends on the amount of intake air.

E.g:

If the blow-by gas is measured on two Cummins B3.3 and QSB3.3 engines of the same configuration and the same size, but their horsepower and rated speed are different, the measured maximum blow-by value will also be different.

Cummins B3.3 and QSB3.3 engines with high rated horsepower and high rated speed are also relatively large in air intake, so the blow-by value is also higher. That is, if the smaller metering hole blow-by tool is used to measure Cummins B3.3 and QSB3.3 engines with high horsepower and high rated speed, the measured value will exceed the limit of the pressure measuring tool.

Blasting tool part number

Measuring hole size mm [in]

3822476

5.61 mm [0.221 in]

3822566

7.67 mm [0.302 in]

When measuring crankcase blow-by pressure, connect a water pressure gauge (part number ST1111-3) or equivalent tool, pressure gauge or sensor to the blow-by tool.

Note: The water pressure gauge (part number ST1111-3) can measure up to 944 mm [36 in] of water.

The following table illustrates the relationship between pressure and flow as measured by the blow-by tool used.

Purge gas conversion table (5.61-mm [0.221-in] metering hole, purge gas tool part number 3822476)

mm [in] H 2 O

Liters [cfm] / minute

25.4 [1]

27 [0.953]

50.8 [2]

40 [1.413]

76.2 [3]

48 [1.695]

101.6 [4]

58 [2.048]

127 [5]

64 [2.260]

152.4 [6]

71 [2.507]

177.8 [7]

76 [2.684]

203.2 [8]

81 [2.860]

228.6 [9]

86 [3.037]

254 [10]

90 [3.178]

279.4 [11]

94 [3.320]

304.8 [12]

98 [3.461]

330.2 [13]

102 [3.602]

355.6 [14]

105 [3.708]

381 [15]

109 [3.849]

406.4 [16]

112 [3.955]

431.8 [17]

115 [4.061]

457.2 [18]

118 [4.167]

482.6 [19]

121 [4.723]

508 [20]

124 [4.379]

533.4 [21]

128 [4.520]

558.2 [22]

131 [4.626]

584.2 [23]

135 [4.767]

609.6 [24]

137 [4.838]

635 [25]

140 [4.944]

660.4 [26]

144 [5.085]

685.8 [27]

147 [5.191]

711.2 [28]

150 [5.297]

736.6 [29]

154 [5.438]

762 [30]

157 [5.544]

787.4 [31]

160 [5.650]

812.8 [32]

163 [5.756]

838.2 [33]

166 [5.862]

863.6 [34]

169 [5.968]

889 [35]

172 [6.074]

304.8 [12]

193 [6.816]

330.2 [13]

200 [7.063]

355.6 [14]

206 [7.275]

381 [15]

211 [7.451]

406.4 [16]

217 [7.663]

431.8 [17]

222 [7.840]

457.2 [18]

226 [7.981]

482.6 [19]

229 [8.087]

508 [20]

235 [8.299]

533.4 [21]

239 [8.440]

558.8 [22]

242 [8.546]

584.2 [23]

246 [8.687]

609.6 [24]

248 [8.758]

Purge gas conversion table (7.67-mm [0.302-in] metering hole, purge tool part number 3822566)

mm [in] H 2 O

Liters [cfm] / minute

25.4 [1]

50 [1.766]

50.8 [2]

84 [2.966]

76.2 [3]

103 [3.637]

101.6 [4]

119 [4.202]

127 [5]

133 [4.697]

152.4 [6]

145 [5.121]

177.8 [7]

155 [5.474]

203.2 [8]

164 [5.792]

228.6 [9]

172 [6.074]

254 [10]

180 [6.357]

279.4 [11]

187 [6.604]

The following table illustrates the general blow-by gas technical specifications of the Cummins B3.3 and QSB3.3 engines. Because of the many types, configurations and specifications of Cummins B3.3 and QSB3.3 engines, these technical specifications can only be used as a guide to help determine if a problem has occurred. These technical specifications cannot be used as the limit values for Cummins B3.3 and QSB3.3 engine scrap.

Note: If it is suspected that Cummins B3.3 and QSB3.3 internal damage caused excessive blow-by gas, other steps can be used to confirm this.

Only when confirming the running-in of Cummins B3.3 and QSB3.3 engines after reinstallation or other symptoms appear, the measurement of blow-by gas must be considered. Symptoms include:

Excessive oil is taken out (the oil is taken out of the crankcase breather tube)

Crankcase pressure too high (for Cummins B3.3 and QSB3.3 engines equipped with crankcase pressure sensor)

Low power

Oil consumption

Exhaust smoke

If there are no other symptoms, no measurement of blow-by gas is required.

If it is suspected that Cummins B3.3 and QSB3.3 internal damage caused excessive blow-by gas, other steps can be taken to confirm this. These steps include:

Confirm Cummins B3.3 and QSB3.3 engine maintenance procedures

Cut the oil filter on and check for debris.

Take a sample of the engine oil and check for contamination.

Technical Specification Sheet of Cummins B3.3 and QSB3.3 Engine Breaching

Technical specifications for blow-by of new Cummins B3.3 and QSB3.3 engines or reinstalled Cummins B3.3 and QSB3.3 engines-mm [in] H 2 O

Specification for blow-by gas for fault diagnosis-mm [in] H 2 O

Cummins B3.3 and QSB3.3 engine models

Blow-by gas tool 3822476-5.61 mm [0.221 in] metering hole

Blasting tool 3822566-7.67 mm [0.302 in] metering hole

Blow-by gas tool 3822476-5.61 mm [0.221 in] metering hole

Blasting tool 3822566-7.67 mm [0.302 in] metering hole

A1400 and A1700 (naturally aspirated)

25.4 [1]

25.4 [1]

A2000 and A2300 (naturally aspirated)

25.4 [1]

38.1 [1.5]

A2000 and A2300 (turbocharged)

38.1 [1.5]

50.8 [2]

ISF2.8

147.3 [5.8]

711.2 [28]

ISF3.8

71.1 [2.8]

254 [10]

B3.3 Tier 1, 2

50.8 [2]

101.6 [4]

B3.3, QSB3.3 Tier 3

101.6 [4]

152.04 [6]

B3.3, QSB3.3 Tier 4 Interim (less than 74 HP)

50.8 [2]

101.6 [4]

B3.9, QSB3.9-30, B4.5, QSB4.5-30 and B4.5 s (naturally aspirated) (less than 250 hp)

25.4 [1]

76.2 [3]

B3.9, QSB3.9-30, B4.5, QSB4.5-30 and B4.5 s (turbocharged) (less than 250 hp)

101.6 [4]

431.8 [17]

B3.9, QSB3.9-30, B4.5, QSB4.5-30 and B4.5 s (turbocharged) (greater than 250 hp)

25.4 [1]

127 [5]

B5.9 (naturally aspirated)

50.8 [2]

B5.9 and QSB5.9-30, (less than 250 horsepower)

228.6 [9]

863.6 [34]

B5.9 and QSB5.9-30, (greater than 250 horsepower)

50.8 [2]

228.6 [9]

ISB, ISB e , QSB e , ISD e , QSB5.9-44, ISB6.7 and QSB6.7

101.6 [4]

254 [10]

C8.3

101.6 [4]

254 [10]

ISC, ISC e , QSC8.3, ISL, ISL e, and QSL9

203.2 [8]

304.8 [12]

B Gas International, B Gas Plus, B LPG Plus, B5.9G, B5.9 LPG

228.6 [9]

889 [35]

C8.3G, C Gas Plus, L Gas Plus

203 [8]

457 [18]

ISB4.5 CM2350 B104

152.4

330.2

Initial inspection

Note: The position and type of the crankcase breather depends on the Cummins B3.3 and QSB3.3 engine configuration (front gear train or rear gear train) and / or Cummins B3.3 and QSB3.3 engine applications (marine, industrial And automotive).

Before measuring the blow-by pressure, check whether the crankcase breather tube is blocked.

Use the following steps in the C Series Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 3660603). Refer to steps 003-018 in Section 3.

Use the following steps in the B3.9, B4.5, B4.5 RGT, and B5.9 Service Manual (Bulletin No. 3666087). Refer to steps 003-018 in Section 3.

Use the following steps in the ISB and QSB5.9-44 Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 3666193). Refer to steps 003-018 in Section 3.

Use the following procedures in the ISBe, ISB, and QSB (Common Rail Fuel System) Maintenance Manual (Bulletin No. 4021271). Refer to steps 003-018 in Section 3.

Use the following steps in the Industrial QSB3.9-30, QSB4.5-30 and QSB5.9-30 Series Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 4021398). Refer to steps 003-018 in Section 3.

Use the following steps in the ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4, and QSL9 Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 4021418). Refer to steps 003-018 in Section 3.

Use the following steps in the B3.3 and QSB3.3 CM2150 Service Manual (Bulletin No. 4021540). Refer to steps 003-018 in Section 3.

Use the following steps in the ISC and ISL CM2150 Service Manual (Bulletin No. 4021569). Refer to steps 003-018 in Section 3.

Use the following procedures in the ISB CM2100 and CM2150 Service Manual (Bulletin No. 4021578). Refer to steps 003-018 in Section 3.

Use the following procedures in the ISBe and ISDe CM2150 Service Manual (Bulletin No. 4021597). Refer to steps 003-018 in Section 3.

Use the following steps in the ISLe CM2150 Service Manual (Bulletin No. 4021630). Refer to steps 003-018 in Section 3.

Use the following steps in the ISL G CM2180 Service Manual (Bulletin No. 4021649). Refer to steps 003-018 in Section 3.

Refer to the ISF3.8 CM2220, ISF3.8 CM2220 AN and ISF3.8 CM2220 IAN Series Cummins B3.3 and QSB3.3 Engine Maintenance Manual (Bulletin No. 4021704). Use the following steps for the split crankcase ventilation system. Refer to steps 003-018 in Section 3. Proceed as follows for the closed crankcase ventilation system. Refer to steps 003-024 in section 3.

Use the following steps in the ISB4.5, ISB6.7, ISD4.5 and ISD6.7 CM2150 SN Series Cummins B3.3 and QSB3.3 Engine Maintenance Manual (Bulletin No. 4022188). Refer to steps 003-018 in Section 3.

The following steps in the "B4.5s and B6.7s Series Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual" (Bulletin No. 4095243) are used. Refer to steps 003-018 in Section 3.

Use the following steps in the ISF2.8 CM2220, ISF2.8 CM2220E, ISF2.8 CM2220 AN, and ISF2.8 CM2220 IAN Maintenance Manual (Bulletin No. 4022178). Refer to steps 003-024 in section 3. Refer to steps 003-026 in Section 3.

Follow the steps in the ISB6.7 Maintenance Manual (Bulletin No. 4022254). Refer to steps 003-018 in Section 3.

Use the following steps in the ISB6.7 CM2350 B101 Service Manual (Bulletin No. 2883567). Refer to steps 003-018 in Section 3.

Use the following steps in the ISB4.5 CM2350 B104 Maintenance Manual (Bulletin No. 4332646). Refer to steps 003-024 in section 3.

Use the following steps in the ISB6.7 CM2350 B103 Maintenance Manual (Bulletin No. 4332641). Refer to steps 003-024 in section 3.

Use the following steps in the QSB6.7 CM2350 B105 Maintenance Manual (Bulletin No. 4332778). Refer to steps 003-018 in Section 3.

Use the following steps in the QSL9 CM2350 L102 Maintenance Manual (Bulletin No. 4332796). Refer to steps 003-018 in Section 3.

If you are troubleshooting a problem with excessive oil spills from the respirator tube, you must remove the respirator components to clean and remove all accumulated oil before performing a blow-by measurement.

Check the Cummins B3.3 and QSB3.3 engine oil oil levels, and if necessary, calibrate the oil gauge correctly. If the oil level is too high, the blow-by gas pressure may exceed normal levels and / or excess oil may be taken out.

Use the following steps in the C Series Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 3660603). Refer to steps 007-011 in Section 7.

Use the following steps in the B3.9, B4.5, B4.5 RGT, and B5.9 Service Manual (Bulletin No. 3666087). Refer to steps 007-011 in Section 7.

Use the following steps in the ISB and QSB5.9-44 Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 3666193). Refer to steps 007-011 in Section 7.

Use the following procedures in the ISBe, ISB, and QSB (Common Rail Fuel System) Maintenance Manual (Bulletin No. 4021271). Refer to steps 007-011 in Section 7.

Use the following steps in the Industrial QSB3.9-30, QSB4.5-30 and QSB5.9-30 Series Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 4021398). Refer to steps 007-011 in Section 7.

Use the following steps in the ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4, and QSL9 Cummins B3.3 and QSB3.3 Engine Failure Judgment and Troubleshooting Manual (Bulletin No. 4021418). Refer to steps 007-011 in Section 7.

Use the following steps in the B3.3 and QSB3.3 CM2150 Service Manual (Bulletin No. 4021540). Refer to steps 007-011 in Section 7.

Use the following steps in the ISC and ISL CM2150 Service Manual (Bulletin No. 4021569). Refer to steps 007-011 in Section 7.

Use the following procedures in the ISB CM2100 and CM2150 Service Manual (Bulletin No. 4021578). Refer to steps 007-011 in Section 7.

Use the following procedures in the ISBe and ISDe CM2150 Service Manual (Bulletin No. 4021597). Refer to steps 007-011 in Section 7.

Use the following steps in the ISLe CM2150 Service Manual (Bulletin No. 4021630). Refer to steps 007-011 in Section 7.

Use the following steps in the ISL G CM2180 Service Manual (Bulletin No. 4021649). Refer to steps 007-011 in Section 7.

Use the following steps in the ISF3.8 CM2220, ISF3.8 CM2220 AN and ISFF3.8 CM2220 IAN Series Cummins B3.3 and QSB3.3 Engine Maintenance Manual (Bulletin No. 4021704). Refer to steps 007-011 in Section 7.

Use the following steps in the ISB4.5, ISB6.7, ISD4.5 and ISD6.7 CM2150 SN Series Cummins B3.3 and QSB3.3 Engine Maintenance Manual (Bulletin No. 4022188). Refer to steps 007-011 in Section 7.

The following steps in the ISF2.8 CM2220, ISF2.8 CM2220E, ISF2.8 CM2220 AN and ISF2.8 CM2220 IAN Series Cummins B3.3 and QSB3.3 Engine Maintenance Manual (Bulletin No. 4022178) are used. Refer to steps 007-011 in Section 7.

Use the following steps in the ISB6.7 Maintenance Manual (Bulletin No. 4022254). Refer to steps 007-011 in Section 7.

Use the following steps in the ISB6.7 CM2350 B101 Service Manual (Bulletin No. 2883567). Refer to steps 007-011 in Section 7.

Use the following steps in the ISB4.5 CM2350 B104 Maintenance Manual (Bulletin No. 4332646). Refer to steps 007-043 in Section 7.

Use the following steps in the ISB6.7 CM2350 B103 Maintenance Manual (Bulletin No. 4332641). Refer to steps 007-043 in Section 7.

Use the following steps in the QSB6.7 CM2350 B105 Maintenance Manual (Bulletin No. 4332778). Refer to steps 007-011 in Section 7.

Use the following steps in the QSL9 CM2350 L102 Maintenance Manual (Bulletin No. 4332796). Refer to steps 007-011 in Section 7.

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