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 MANUALSACURA2008MDX V6-3.7LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON, ENGINE
2008 Acura MDX V6-3.7L
Piston, Engine
2008 Acura MDX V6-3.7LSECTION Piston, Engine
Piston
Skirt O.D. at 16.0 mm (0.63 in.) from bottom of skirt
Standard or New 89.893 - 89.996 mm (3.5426 - 3.5431 in.)
Clearance in cylinder
Standard or New 0.004 - 0.032 mm (0.0001 - 0.0013 in.)
Service Limit 0.08 mm (0.003 in.)
Ring groove width
Top
Standard or New 1.240 - 1.255 mm (0.0488 - 0.0494 in.)
Service Limit 1.27 mm (0.050 in.)
Second
Standard or New 1.220 - 1.235 mm (0.0480 - 0.0486 in.)
Service Limit 1.25 mm (0.049 in.)
Oil
Standard or New 2.805 - 2.825 mm (0.1104 - 0.1112 in.)
Service Limit 2.85 mm (0.112 in.)
Skirt O.D. at 16.0 mm (0.63 in.) from bottom of skirt
Standard or New 89.893 - 89.996 mm (3.5426 - 3.5431 in.)
Clearance in cylinder
Standard or New 0.004 - 0.032 mm (0.0001 - 0.0013 in.)
Service Limit 0.08 mm (0.003 in.)
Ring groove width
Top
Standard or New 1.240 - 1.255 mm (0.0488 - 0.0494 in.)
Service Limit 1.27 mm (0.050 in.)
Second
Standard or New 1.220 - 1.235 mm (0.0480 - 0.0486 in.)
Service Limit 1.25 mm (0.049 in.)
Oil
Standard or New 2.805 - 2.825 mm (0.1104 - 0.1112 in.)
Service Limit 2.85 mm (0.112 in.)
RENDER: 1.0x
NO RELATED
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Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.