Gasket - cylinder head (page 2 of 9)
- Make
- Land Rover
- Model
- Discovery II (UK)
- Section
- Overhaul
- Remove bolt and nut securing front of cylinder Reassembly head to timing chain cover.
- Using sequence shown, progressively loosen then remove 12 cylinder head bolts; discard bolts together with their captive washers.
- Using assistance, remove cylinder head and support each end of cylinder head on 2 wooden blocks.
- Remove the cylinder head gasket.
- Note the gasket thickness indicator and ensure the same thickness gasket is used on refitment of the cylinder head.
CAUTION: If new pistons, connecting rods or crankshaft are to be fitted, it will be necessary to measure piston stand proud in order to determine thickness of gasket
- Clean camshaft sprocket and mating face on
required – See Pistons, Connecting Rods and Cylinder Bores – Cylinder head gasket selection.
- Remove and discard 2 plastic locating dowels from cylinder block.
- Carry out cylinder head overhaul procedures. ENGINE - Td5, OVERHAUL, Cylinder head - overhaul.
- Thoroughly clean cylinder block and cylinder head mating faces.
- Ensure coolant and oil passageways are clear and bolt holes are clean and dry.
- Ensure locating dowel holes in cylinder block are clean and dry.
- Fit new plastic locating dowels in cylinder block.
- Fit new cylinder head gasket of the correct thickness with the word 'TOP' uppermost.
CAUTION: Gasket must be fitted dry.
- Ensure that timing pin LRT-12-058 is still fitted and using assistance, fit cylinder head.
- Carefully enter new cylinder head bolts together with their captive washers. DO NOT DROP. Lightly tighten bolts.
- Using sequence shown tighten cylinder head bolts to: l Stage 1 - 30 Nm (23 lbf.ft) l Stage 2 - 65 Nm (48 lbf.ft) l Stage 3 - 90° l Stage 4 - Further 180° l Stage 5 - Further 45°
CAUTION: Ensure correct tightening sequence is followed for all 5 tightening stages, do not tighten bolts 315° in one operation.
- Fit cylinder head to timing chain cover nut and bolt and tighten to 25 Nm (18 lbf.ft).
camshaft.
Parts & tools for this job For Land Rover Discovery
- PARTEngine gasket setSearch: Land Rover Discovery engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.