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.
2004 Land Rover Freelander (LN) V6-2.5LFACTORY OEM SERVICE PROCEDURE
Piston Ring, Engine
Piston rings
New ring to groove clearance:
Top compression ring 0.05 - 0.08 mm (0.0020 - 0.0031 inch)
2nd compression ring 0.04 - 0.07 mm (0.0012 - 0.0024 inch)
Oil control ring 0.010 - 0.180 mm (0.0004 - 0.0071 inch)
Ring fitted gap 20 mm (0.75 inch) from top of bore:
Top compression ring 0.20 - 0.35 mm (0.008 - 0.014 inch)
2nd compression ring 0.28 - 0.45 mm (0.011 - 0.018 inch)
Oil control ring 0.25 - 1.00 mm (0.010 - 0.039 inch)
Piston ring width:
Top compression ring 3.1 ± 0.15 mm (0.122 ± 0.006 inch)
2nd compression ring 3.15 - 3.45 mm (0.124 - 0.136 inch)
Oil control ring 2.286 - 2.438 mm (0.090 - 0.096 inch)
New ring to groove clearance:
Top compression ring 0.05 - 0.08 mm (0.0020 - 0.0031 inch)
2nd compression ring 0.04 - 0.07 mm (0.0012 - 0.0024 inch)
Oil control ring 0.010 - 0.180 mm (0.0004 - 0.0071 inch)
Ring fitted gap 20 mm (0.75 inch) from top of bore:
Top compression ring 0.20 - 0.35 mm (0.008 - 0.014 inch)
2nd compression ring 0.28 - 0.45 mm (0.011 - 0.018 inch)
Oil control ring 0.25 - 1.00 mm (0.010 - 0.039 inch)
Piston ring width:
Top compression ring 3.1 ± 0.15 mm (0.122 ± 0.006 inch)
2nd compression ring 3.15 - 3.45 mm (0.124 - 0.136 inch)
Oil control ring 2.286 - 2.438 mm (0.090 - 0.096 inch)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.