
3
Workshop Manual, TPD 1353E, Issue 3
41
Peregrine EDi and 1300 Series EDi
Cylinder head
To inspect and to correct
Operation 3-17
1 Remove the cylinder head assembly, see Operation 3-8.
2 Remove the valve springs and the valves, see Operation 3-10.
3 Remove the thermostat, see Operation 12-2.
4 Inspect the cylinder head for signs of gas or coolant leakage.
5 Clean the face of the cylinder head, the passages for coolant and the passages for the lubricating oil.
6 The water jacket can be cleaned with a special solvent, which must be used in accordance with the
manufacturer’s instructions.
7 Pressure test the cylinder head to a pressure of 124/138 kPa (18/20 lbf in
2
) 1,27/1,41 kgf cm
2
and inspect
the cylinder head for leaks.
Warning! Always use a safety cage to protect the operator when a component is to be pressure tested in a
bath of water. Fit safety wires to secure the plugs that seal the hose connections of a component that is to be
pressure tested.
8 When the cylinder head is thoroughly clean, check it for cracks. Examine carefully the areas around the
valve seats and around the holes for the injector units.
9 The bottom face of the cylinder head can be machined if:
l
There is distortion (see step 10).
l
There are deep scratches.
10 Use a straight edge and feeler gauges to check the cylinder head for distortion (A) across and along its
bottom face, refer to the relevant Data and dimensions for the "Cylinder head" on page 10. If the distortion is
more than the given limit the bottom face can be machined.
Cautions:
l
Remove only the minimum material and ensure that the thickness of the cylinder head will not be less than
106,17 mm (4.180 in) after the cylinder head has been machined.
l
After the cylinder head has been machined the valve seats must be corrected to give the correct valve head
depth, see Operation 3-18.
l
It is advisable to work to the minimum limit to allow for later wear.
Continued
W026
A
1
1
2
3
4
5
6
2
3
4
5
6
This document has been printed from SPI². Not for Resale
Содержание 1300 EDi Series
Страница 12: ...xii This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 62: ...This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 76: ...This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 122: ...This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 170: ...This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 190: ...This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 198: ...This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 204: ...This page is intentionally blank This document has been printed from SPI Not for Resale...
Страница 226: ...This page is intentionally blank This document has been printed from SPI Not for Resale...