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 (J35Y6)
2018 Acura TLX Base, 2.4L EngSECTION Engine Block (J35Y6)
| Item | Measurement | Qualification | Standard or New | Service Limit | |
|---|---|---|---|---|---|
| Block | Warpage of deck | 0.07 mm (0.0028 in) max. | - | ||
| Bore diameter | 89.000-89.015 mm (3.50393-3.50452 in) | 89.065 mm (3.50649 in) | |||
| Bore taper | - | 0.25 mm (0.0098 in) | |||
| Reboring limit | - | 0.25 mm (0.0098 in) | |||
| Piston | Skirt O.D. at 16 mm (0.63 in) from bottom of skirt | 88.975-88.985 mm (3.50295-3.50334 in) | 88.965 mm (3.50255 in) | ||
| Clearance in cylinder | 0.015-0.040 mm (0.00059-0.00157 in) | 0.08 mm (0.0031 in) | |||
| Piston ring | Ring-to-groove clearance | Top | 0.065-0.090 mm (0.003 in) | 0.15 mm (0.005 in) | |
| Second | 0.030-0.055 mm (0.002 in) | 0.13 mm (0.005 in) | |||
| Ring end gap | Top | 0.20-0.35 mm (0.008-0.013 in) | 0.60 mm (0.023 in) | ||
| Second | 0.40-0.55 mm (0.016-0.021 in) | 0.70 mm (0.027 in) | |||
| Oil | 0.20-0.70 mm (0.008-0.027 in) | 0.80 mm (0.031 in) | |||
| Piston pin | O.D. | 21.962-21.965 mm (0.86464-0.86476 in) | 21.954 mm (0.86433 in) | ||
| Pin-to-piston clearance | -0.0050-0.0010 mm (-0.000197-0.000039 in) | 0.004 mm (0.00016 in) | |||
| Connecting rod | Pin-to-rod clearance | 0.005-0.014 mm (0.00020-0.00055 in) | 0.019 mm (0.00075 in) | ||
| Big end bore diameter | 58.0 mm (2.283 in) | - | |||
| End play | 0.15-0.35 mm (0.005-0.013 in) | 0.45 mm (0.017 in) | |||
| Crankshaft | Rod/main journal taper | 0.005 mm (0.00020 in) max. | 0.005 mm (0.00020 in) | ||
| Rod/main journal out-of-round | 0.005 mm (0.00020 in) max. | 0.010 mm (0.00039 in) | |||
| End play | 0.10-0.35 mm (0.0039-0.0138 in) | 0.45 mm (0.0177 in) | |||
| Total runout | 0.025 mm (0.00098 in) max. | 0.030 mm (0.00118 in) | |||
| Crankshaft bearing | Main bearing-to-journal oil clearance | 0.019-0.045 mm (0.00075-0.00177 in) | 0.050 mm (0.00197 in) | ||
| Connecting rod bearing-to-journal oil clearance | 0.020-0.044 mm (0.00079-0.00173 in) | 0.050 mm (0.00197 in) | |||
RENDER: 1.0x
NO RELATED
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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.