Piston Ring

1999 Ford Taurus V6-3.0L DOHC VIN SSECTION Piston Ring
Side Clearance Compression (Top) 0.0015 - 0.0029 Inch (in)
Compression (Bottom) 0.0015 - 0.0033 Inch (in)
Oil Ring Snug Fit
Service Limit 0.0039 Inch (in)
Piston Ring Gap
Specification 82.4 mm (3.2441 inch) diameter gauge.
Compression (Top)-Gauge Diameter 0.0039 - 0.0098 Inch (in)
Compression (Bottom)-Gauge Diameter 0.0106 - 0.0165 Inch (in)
Oil Ring (Steel Rail) Gauge Diameter 0.0059 - 0.0255 Inch (in)
Compression (Top) - Service Limit 0.0196 Inch (in)
Compression (Bottom) - Service Limit 0.0255 Inch (in)
Oil Ring (Steel Rail) - Service Limit 0.0354 Inch (in)
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.