Range includes but is not limited to – valves; seats (wear, damage, protrusion, and seating); valve guides and springs; camshaft; camshaft and timing drives; valve operating mechanism; head gasket and seals; retaining bolts, washers, and seats. 1.5 Procedures for inspecting the cylinder head are described in accordance with service information. Range procedures for inspecting for includes but is not limited to – hardness; wear, flatness, and damage to machined surfaces; corrosion, erosion, electrolysis, and cavitation of water passages and components; camshaft tunnel alignment and bearing condition; combustion chambers; inlet and exhaust ports cracking. 1.6 Inspection of core plugs, studs, and threaded holes for signs of leakage, damage, clogging, and/or breakage are described in accordance with service information. Ó New Zealand Qualifications Authority 2019
24302 version 1 Page 3 of 3 Element 2 Demonstrate knowledge of reassembling an engine cylinder head. Performance criteria 2.1 Methods of reassembling valves and associated components are described in accordance with service information. 2.2 Methods of reassembling the cylinder head on to the engine block are described in accordance with service information. Range includes but is not limited to – head and block preparation and cleanliness, head gasket preparation, reusing head studs, torquing to correct sequence and specification, assembling camshaft and lifter mechanisms, checking and fitting valve timing drive (belt, chain), assembling manifolds, initial adjustments.
You've reached the end of your free preview.
Want to read all 3 pages?
- Summer '14
- Internal combustion engine, New Zealand Qualifications Authority, Cylinder head