
Workshop Manual, TPD 1350, issue 3
49
12
New 1000 Series
Valves and valve springs
To remove and to fit
12-8
Special tools:
Valve spring compressor, PD.6118B
Stud adaptor, PD.6118-7
Setscrew adaptor, PD.6118-8
To remove
Warning! Wear eye protection during this operation.
1 Remove the cylinder head
, see operation 12-7
.
2 Clean the bottom face of the cylinder head and
check the depth of the heads of the valves below the
face of the cylinder head
, see operation 12-9
.
3 Make a suitable mark on the heads of the valves to
ensure that the valves can be fitted in their original
positions, if they are to be used again.
Caution: Ensure that the valve springs are
compressed squarely or the valve stem can be
damaged.
4 Use the valve spring compressor and the relevant
adaptor to compress the valve spring (A3) and
remove the collets (A2).
5 Release the valve spring compressor and remove
the valve spring cap (A1), valve spring and valve stem
seal (A4).
6 Repeat items 4 and 5 for the other valves.
To fit
Warning! Wear eye protection during this operation.
Note: The components of the valve assembly are
shown in A.
1 Lubricate the valve stem (A5) with clean engine oil
and fit the valves in their respective guides.
Caution: The outer diameter of the exhaust valve
guide is 1 mm larger than the inlet valve guide. To
prevent leakage past the inlet valve stem it is
important that the larger exhaust valve seal is not
fitted onto the inlet guide. The seals in the service kit
have different colours for identification.
2 Fit new valve stem seals on the valve guides.
ensure that the brown seal is fitted to the exhaust
valve and green seal is fitted to the inlet valves.
3 Put the valve springs in position, they can be fitted
with either end to the cylinder head. Fit the valve
spring cap.
Caution: Ensure that the valve spring is compressed
squarely or damage can occur to the valve stem.
4 Use the valve spring compressor and the relevant
adaptor to compress the valve spring and fit the
collets.
1
2
3
4
5
A
C039
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Содержание New 1000 Series
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