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.
Engine Block Overhaul: Inspection
Connecting Rod and Crankshaft End Play Inspection
- Connecting Rod - Inspect
1. Measure the connecting rod end play with a feeler gauge (A) between the connecting rod (B) and the crankshaft (C). 2. If the connecting rod end play is beyond the service limit, install a new connecting rod, and recheck. If it is still beyond the service limit, replace the crankshaft.
Connecting Rod End Play Standard (New): 0.15-0.35 mm (0.0059-0.0138 in) Service Limit: 0.45 mm (0.0177 in) - Crankshaft End Play - Inspect
1. Push the crankshaft firmly away from the dial indicator by prying, and zero the dial against the end of the crankshaft. Then pull the crankshaft firmly back toward the indicator by prying; the dial reading should not exceed the service limit. 2. If the crankshaft end play is beyond the service limit, replace the thrust washers and recheck, if it is still beyond the service limit, replace the crankshaft.
Crankshaft End Play Standard (New): 0.10-0.35 mm (0.0039-0.0138 in) Service Limit: 0.45 mm (0.0177 in)
Main Bearing Clearance Inspection
- Lower Block and Bearing Half - Remove
- Main Bearing Clearance - InspectRENDER: 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.