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2.50 LITRE DIESEL ENGINE Whilst this is rarely the procedure is nevertheless as follows: 25. Using an 8 taper tap, cut a thread 30 in) in the combustion face end of the tube be removed. 26. Screw an appropriate bolt into the tube and press out the tube as illustrated. 27. Smear both ends of a new tube with silicone rubber sealant press i t into the cylinder head. chambers face downwards. Since the inlet and it is important that the correct-guides are fitted to the appropriate ports. 31. Lubricate guides with engine oil and using special drift 600959 for the exhaust and 601508 for or suitable alternatives, drive in the n e w guides until the shoulder is flush with Reface cylinder head valve seats 32. Damaged or worn valve seats can be refaced provided they are not abnormally wide due to Renew valve guides 28. Support the cylinder head, combustion chamber uppermost on pieces of timber of sufficient thickness to allow clearance for the valve guides to 274401 for exhaust guides or suitable alternatives 29. Using special drift 274400 for inlet guides and drive out the old guides from the combustion face A I , ,.. side. I A. Correctly seated valve Undesirable condition C. Method of rectification B C 55 |