568687R - Exhaust Valve Guide Replacement by AllmakesEngine Part Land Rover Range Rover Defender, Series

568687R - Uitlaatklepgeleider

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Uitlaatklepgeleider wordt in de cilinderkop geperst om de uitlaatklep te ondersteunen en uit te lijnen.

Het positioneert de klepsteel zodat de klep stevig op zijn uitlaatklepzitting sluit en voert warmte af van de steel naar het cilinderkopblok. Voor 2.25L en 2.5L 4-cilinder benzinemotoren.

Vehicle Model Land Rover Defender t/m 2016
Land Rover Series 2 en 3

Fitment Notes SERIE III — 2.25L 4 Cyl Benzine (per AllMakes)
DEFENDER 1987-2006 — 2.25L & 2.5L 4 Cyl Benzine, uitlaatklepgeleider cilinderkop

Alternative Codes

568687R568687605760BR 3025

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Frequently asked questions

What is the exhaust valve guide and what does it do?

The exhaust valve guide is a sleeve pressed into the cylinder head that supports and aligns the exhaust valve. It holds the valve stem on centre for a square seat and draws heat from the stem into the head. Used on 2.25L and 2.5L 4-cylinder petrol engines.

How many of these valve guides will I need?

You'll typically need four exhaust valve guides for a 2.25L or 2.5L 4-cylinder petrol head, one per cylinder. Inlet and exhaust guides are usually renewed together during a head overhaul, so check both counts before ordering for your engine.

Can an exhaust valve guide be fitted at home?

Fitting an exhaust valve guide usually calls for a machine shop rather than home tools. The worn guide is pressed out, the replacement pressed into an interference fit, then reamed to the valve stem clearance. This is done with the cylinder head removed and supported on a press.

What symptoms point to worn exhaust valve guides?

Worn exhaust valve guides typically cause blue exhaust smoke, higher oil use, and noisy or poorly sealing valves. As stem clearance opens up, oil is drawn past the guide and the valve seat wears. New guides restore valve sealing on these 4-cylinder petrol engines.

568687R - Uitlaatklepgeleider

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