27
COMPILER TECO/ATL
REG. CODE
1-5302-296
MODEL N°
50510
DATE OF ISSUE
01.89
REVISION 02
ENDORSED
DATE
17.04.2003
32
33 34
35 36
VIII
Valve seats and housings
Dimensions (mm.):
A = 40.000÷40.016 (intake valve housing dia.)
B = 40.120÷40.140 (intake valve seat dia.)
C = 34.000÷34.016 (exhaust valve housìng dia.)
D = 34.120÷34.140 (exhaust valve seat dia.)
Press valve seats into the housings and cut a at 45°.
Valve seat lapping
After cutting, lap valve seats with fine emery paste in oil suspension.
The sealing surface S should not exceed 2 mm.
Valve recess after grinding D = 0.75÷1.25 mm; maximum worn limit
1.65 mm.
Pushrod tube spring fitting
Components:
1 Spring
2 Tool Part No 7535-1460-009
3 Rocker arm lubrication tube
4 Gasket
5 Pushrod tube
6 Gasket
To fit spring 1 onto tube 5 first press it inside tool 2 using a vice.
Check that tube 3 and gaskets 4 and 6 are well inside their seats.
DISASSEMBLY/REASSEMBLY
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