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3-4L43C, 3-4M43, 3-4M43Z
Maintenance
HATZ
71
Manual
Overview — Adjusting the tappet clearance
Pos.
Designation
1
Hex nut
2
Adjusting screw
3
Feeler gauge
Procedure — Adjusting the tappet clearance
Step
Activity
1
Check the tappet clearance with the feeler gauge (3). For the
setting, see the chapter
2
If the tappet clearance needs to be corrected:
▪ Release the hex nut (1).
▪ Turn the adjustment screw (2) so the feeler gauge (3) can be
pulled through with a barely perceptible resistance after the
hex nut (1) is tightened again.
3
Repeat the above procedure for the entire valve area, taking
special care to use the described adjustment method.
4
Mount the cylinder head cover again:
▪ Always renew the gaskets.
▪ Use the fixing nuts for the cylinder head cover no more than
twice before renewing them.
▪ Tightening torque:
10 Nm
.
5
Mount all covers.
NOTE:
▪ Under no circumstances is the engine permitted to be oper-
ated if not all covers are mounted.