Cylinder head - overhaul

Inspect

Cylinder head - overhaul

$% 12.29.19.01

Disassembly

1. Remove cylinder head gasket. ENGINE - V8, OVERHAUL, Gasket - cylinder head.
2. Loosen screw on tool LRT-12-034.

3. Fit tool LRT-12-034 to valve and tighten screw to compress valve spring sufficiently to release collets from valve spring cap.

4. Remove 2 collets and release valve spring compressor.
5. Remove valve spring cap and valve spring.
6. Remove valve from cylinder head.
7. Remove and discard valve stem oil seal.
8. Repeat above operations for remaining valves.
9. Keep valves, springs, caps and collets in their fitted order.
1. Clean mating faces of cylinder block and head using suitable gasket removal spray and a plastic scraper, ensure that bolt holes in block are clean and dry.

CAUTION: Do not use a metal scraper or machined surfaces may be damaged.

2. Clean cylinder head, valve springs, valves and inlet valve guide bores. Ensure all loose particles of carbon are removed on completion.

3. Check head and block faces for warping and pitting. Maximum warp = 0.05 mm (0.002 in).

4. Check cylinder head height at each end of head. Renew a head which is outside limits. a 22.94 mm (0.903 in) - New b 62.56 mm (2.463 in) - New
5. Cylinder head can be refaced to 0.50 mm (0.02 in) max. below head height.