Operation 3-9 To Fit The Cylinder Head - Perkins 900 Series Workshop Manual

900 Series
To fit the cylinder head
Cautions:
l The cylinder head gasket must be clean and free from scratches or other damage.
l The gasket must not be used if there is a scratch or other damage on the gasket or debris is on the outer
surfaces or has entered between the layers of the gasket.
l The new gasket, the bottom face of the cylinder head and the top face of the cylinder block must be
completely clean and free of scratches or other damage. If the faces are dirty or damaged, the gasket will
not seal correctly.
Warning! Methyl Ethyl Ketone (MEK), also known as Butanone, is very flammable. Its storage and use must
be in accordance with the manufacturers instructions. The vapour from MEK is toxic, therefore ensure that the
work area has good ventilation. Protect your hands with gloves suitable for solvents. Wear eye protection.
1 With a suitable cleaner, for example MEK, clean thoroughly the bottom face of the cylinder head and the top
face of the cylinder block. Hard carbon can be removed with a hard plastic or hard wood scraper. Ensure that
the top face of the cylinder block and the bottom face of the cylinder head are free from scratches or other
damage.
2 Check that the threaded holes in the cylinder block and the cylinder head setscrews and studs are clean
and in good condition. Ensure that there is no debris, coolant or oil in the cylinder bores.
Note: There are two methods used to position the gasket and the cylinder head on the cylinder block. Earlier
engines used location pins (A1) and later engines use ring dowels (B1).
Cautions:
l Ensure that the location pins are pressed into the cylinder block.
l The cylinder head gasket must be fitted without jointing compound.
1
A
Workshop Manual, TPD 1345E, issue 3
This document has been printed from SPI². Not for Resale
1
B
C0123
Operation 3-9
1
3
1
C0030
Continued
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