Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN1991JETTA L4-1984CC 2.0L DOHCREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCONNECTING ROD, ENGINEMEASUREMENT SPECIFICATIONS
1991 Volkswagen Jetta L4-1984cc 2.0L DOHC
Measurement Specifications
1991 Volkswagen Jetta L4-1984cc 2.0L DOHCSECTION Measurement Specifications
Connecting Rod Radial Clearance [1]:
New 0.01-0.06 mm (0.0004-0.0024 in.)
Wear limit 0.12 mm (0.0047 in.)
Connecting Rod Axial Clearance [2]:
New 0.05-0.31 mm (0.0020-0.0122 in.)
Wear limit 0.37 mm (0.0145 in.)
Checking Torque 30 Nm (22 ft lb)
Assembly Torque 30 Nm (22 ft lb) plus 1/4 turn (90°)
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[1]: When checking radial clearance, lubricate the contact surface of the nut or bolt before tightening. When checking connecting rod radial clearance, tighten the nut or bolt only to 30 Nm (22 ft lb) and not the additional 1/4 turn.
[2]: If connecting rod radial clearance is excessive, the crankshaft connecting rod journals should be checked. If the crankshaft journal diameters are within specifications, recheck radial clearance using new bearing shells.
New 0.01-0.06 mm (0.0004-0.0024 in.)
Wear limit 0.12 mm (0.0047 in.)
Connecting Rod Axial Clearance [2]:
New 0.05-0.31 mm (0.0020-0.0122 in.)
Wear limit 0.37 mm (0.0145 in.)
Checking Torque 30 Nm (22 ft lb)
Assembly Torque 30 Nm (22 ft lb) plus 1/4 turn (90°)
_____________________________________
[1]: When checking radial clearance, lubricate the contact surface of the nut or bolt before tightening. When checking connecting rod radial clearance, tighten the nut or bolt only to 30 Nm (22 ft lb) and not the additional 1/4 turn.
[2]: If connecting rod radial clearance is excessive, the crankshaft connecting rod journals should be checked. If the crankshaft journal diameters are within specifications, recheck radial clearance using new bearing shells.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.