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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 1.35L (L3T) >> Specifications >> Engine Mechanical Specifications

Engine Mechanical Specifications

Application Specification
Metric English
General
  • Engine Type
 3-Cylinder Inline
  • Displacement
 1.35 Liter 82.3 cu in
  • RPO
 L3T
  • VIN
 L
  • Bore
 79 mm 3.11 in
  • Stroke
 91.2 mm 3.59 in
  • Compression Ratio
 10.01
  • Firing Order
 1 - 2 - 3
  • Spark Plug Gap
 0.65 - 0.75 mm 0.025 - 0.029 in
Engine Block
  • Engine Block Height
 228 mm 8.9764 in
  • Engine Block Deck Run Out
 0.025 mm 0.001 in
  • Connecting Rod Length - Center to Center
 146.65 - 146 - 75 mm 5.774 - 5.778 in
  • Crankshaft Main Bearing Bore Diameter
 56.028 mm 2.2056 - 2.2061 in
  • Cylinder Bore Diameter
 92.25 3.6316 - 3.6322 in
  • Cylinder Bore Out-of-Round - Maximum
 0.013 mm 0.0005 in
Crankshaft
  • Connecting Rod Journal Diameter
 43.992 - 44.008 mm 1.7320 - 1.7326 in
  • Connecting Rod Journal Out-of-Round
 0.005 mm max 0.0002 in
  • Connecting Rod Journal Taper
 0.008 mm max 0.00031 in
  • Connecting Rod Journal Width
  • Production
 21.72 - 21.88 mm 0.8551 - 0.8614 in
  • Service
 21.72 - 21.88 mm 0.8551 - 0.8614 in
  • Crankshaft End Play
 0.084 - 0.316 mm 0.0033 - 0.0124 in
  • Crankshaft Main Bearing Clearance
 0.035 - 0.055 mm 0.0014 - 0.0022 in
  • Crankshaft Main Journal Diameter
 43.992 - 44.008 mm 1.732 - 1.733 in
  • Crankshaft Main Journal Out-of-Round
 0.005 mm max 0.0002 in
  • Crankshaft Main Journal Taper
 0.008 mm max 0.00031 in
  • Crankshaft Main Journal Thrust Wall
  • Runout
 0.04 mm 0.0016 in
  • Square
 0.01 mm 0.0004 in
  • Crankshaft Main Journal Width, #2, 4
  • Production
 21.7 - 21.9 mm 0.85 - 0.86 in
  • Service
 21.7 - 21.9 mm 0.85 - 0.86 in
  • Crankshaft Main Journal Width, #3
  • Production
 23.274 - 23.326 mm 0.9163 - 0.9183 in
  • Service
 23.274 - 23.326 mm 0.9163 - 0.9183 in
  • Crankshaft Pilot Bearing Bore Diameter
 20.97 - 21.00 mm 0.826 - 0.827 in
  • Crankshaft Rear Flange Runout
 0.025 mm 0.001 in
  • Crankshaft Intermediate Main Runout
 0.035 mm 0.0013 in
  • Crankshaft Thrust Surface - Height Diameter
 65.5 - 66.5 mm 2.58 - 2.62 in
Connecting Rod
  • Connecting Rod Bearing Clearance
 0.028 - 0.062 mm 0.0011 - 0.0024 in
  • Connecting Rod Bore Diameter - Bearing End
 47.186 - 47.202 mm 1.8577 - 1.8583 in
  • Connecting Rod Bore Diameter - Pin End - Production
 19.007 - 19.017 mm 0.7483 - 0.7487 in
  • Connecting Rod Bore Diameter - Pin End - Service Maximum
 19.025 mm 0.74901 in
  • Connecting Rod Length - Center to Center
 135.02 - 135.12 mm 5.316 - 5.320 in
  • Connecting Rod Side Clearance
 0.095 - 0.355 mm 0.0037 - 0.0140 in
  • Connecting Rod Width - Bearing End
  • Production
 21.57 - 21.58 mm 0.849 - 0.850 in
  • Service
 21.57 - 21.58 mm 0.849 - 0.850 in
  • Connecting Rod Width - Pin End
  • Production
 21.57 - 21.58 mm 0.849 - 0.850 in
  • Service
 21.57 - 21.58 mm 0.849 - 0.850 in
Lubrication System
  • Oil Pressure @ Pressure Sensor Location @ 1500 RPM 20°C
 125 - 185 Kpa 18.13 - 26.83 PSI
  • Oil Pressure @ Oil Filter Adapter @ 1500 RPM 20°C
 135 - 195 Kpa 19.58 - 28.28 PSI
  • Piston Ring

    Piston Ring End Gap
  • First Compression Ring - Nominal
 0.2 - 0.3 mm 0.008 - 0.0118 in
  • First Compression Ring - Maximum, Ring in Bore
 0.325 mm 0.012795 in
  • Second Compression Ring - Nominal
 0.45 - 0.60 mm 0.0177 - 0.02362 in
  • Second Compression Ring - Maximum, Ring in Bore
 0.475 mm 0.0187 in
  • Oil Control Ring
 0.15 - 0.55 mm 0.0059 - 0.02165 in
  • Piston Ring to Groove Clearance
  • First Compression Ring
 0.04 - 0.08 mm 0.001575 - 0.00315 in
  • Second Compression Ring
 0.03 - 0.07 mm 0.00118 - 0.002756 in
  • Oil Control Ring
 0 - 0.33 mm 0 - 0.01311 in
  • Piston Ring Thickness
  • First Compression Ring
 1.17 - 1.195 mm 0.0461 - 0.0470 in
  • Second Compression Ring
 0.97 - 0.995 mm 0.0381 - 0.0392 in
  • Oil Control Ring
 1.34 - 1.50 mm 0.0528 - 0.05905 in
  • Piston
  • Piston Diameter - Measured Over Skirt Coating
 78.952 - 78.987 mm 3.1083 - 3.1097 in
  • Piston Diameter - Service Limit Minimum w/more than 10K miles
 79.017 mm 3.1109 in
  • Piston Pin Bore Diameter
 19.005 - 19.010 mm 0.7482 - 0.7484 in
  • Piston Ring Groove Width - First Compression Ring
 1.23 - 1.25 mm 0.0484 - 0.0492 in
  • Piston Ring Groove Width - Second Compression Ring
 1.02 - 1.04 mm 0.0402 - 0.0409 in
  • Piston Ring Groove Width - Oil Control Ring
 1.51 - 1.53 mm 0.0594 - 0.0602 in
  • Piston to Bore Clearance - Production; Measured at Skirt Coating
 0.005 - 0.055 mm 0.0002 - 0.0022 in
  • Piston to Bore Clearance - Service Limit Maximum, w/more than 10k miles
 0.070 mm 0.0028 in
  • Piston Pin
  • Piston Pin Clearance to Connecting Rod Bore - Production
 0.005 - 0.02 mm 0.0002 - 0.0008 in
  • Piston Pin Clearance to Connecting Rod Bore - Service Maximum
 0.025 mm 0.0001 in
  • Piston Pin Clearance to Piston Pin Bore - Production
 0.005 - 0.013 mm 0.0002 - 0.0005 in
  • Piston Pin Clearance to Piston Pin Bore - Service Maximum
 0.02 mm 0.0008 in
  • Piston Pin Diameter
 18.997 - 19.00 mm 0.4749 -.0.7480 in
  • Piston Pin Length
 47.0 - 47.2 mm 1.85 - 1.86 in
Cylinder Head
  • Surface Flatness - Block Deck - Longitude
 If the deck surface is out of specification, replace the cylinder head. Do not machine the cylinder head.
  • Surface Flatness - Block Deck - Transverse
 If the deck surface is out of specification, replace the cylinder head. Do not machine the cylinder head.
  • Valve Seat Angle
 90 degrees (+/-1 degrees)
  • Valve Seat Angle Adjustment - Upper
 50 degrees (+/-4 degrees)
  • Valve Seat Angle Adjustment - Lower
 130 degrees (+/-4 degrees)
Valve System
  • Exhaust Valve Length
 103.18 mm 4.0622 in
  • Intake Valve Length
 112.04 mm 4.411 in
  • Valve Seat Angle - Seating Surface
 90 degrees
  • Valve Seat Roundness - Maximum
 0.018 mm 0.0007 in
  • Valve Seat Runout - Maximum
 0.08 mm 0.00315 in
  • Intake Valve Stem Diameter
 5.955 mm 0.2344 in
  • Exhaust Valve Stem Diameter
 5.965 mm 0.2348 in
  • Valve Face Width - Exhaust
 DO NOT GRIND, REPLACE VALVE DO NOT GRIND, REPLACE VALVE
  • Valve Face Width - Intake
 DO NOT GRIND, REPLACE VALVE DO NOT GRIND, REPLACE VALVE
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