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DEFENDER ENGINE 10. insert the assembled pilot into the valve guide from the combustion chamber side of the cylinder head until the shoulder contacts the valve guide and the whole of the collet is inside the guide. To lock the pilot in the guide bar clockwise whilst holding the knurled knob. ....... . refacing 11. Check that the seat cutter is assembled correctly using the key MS76 ensuring that the angled end of each cutter is towards the seat and set so that the middle of the blade contacts the seat first. O n e end of the cutter is angled at 45" and the other end is 12. Using very light pressure tum the cutter clockwise until the angled face is approximatly wide. operation smear a small quantity of engineers' blue round the valve seat and revolve a A good seating will produce a continuous fine polished A slight gap of not more than in t h e polished line, can b e corrected by lapping. To check the effectiveness of the cutting Valves that are satisfactory for further service can be refaced. This operation should be of material should b e removed from t h e valve face to avoid thinning of the valve edge. The valve is refaced correctly whan all pits are removed and the is concentric with the stem. Inlet valve seat f a c e - Exhaust valve seat face - + 45" + Inlet valve face - Exhaust valve face - - 45" 75 |