Check the condition and the diameters of the rocker arm hole and the corresponding pin hole:
- Rocker arm inner hole nominal diameter: 10.040-10.062 mm
- pin nominal diameter: 10.001-10.010 mm
Check that the work surfaces of the adjusters and return caps of the valves are perfectly flat and show no signs of wear.
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Rocker arm pin-rocker arm coupling
The coupling clearance must be 0.03+ 0.06 mm/0.0012-0.0024 in.
Maximum wear limit: 0.08 mm/0.0031 in.
The rocker arm pins must be fitted on the head using a little force.
If there is excessive play, fit pins oversized by 0.02 mm, available from the Spare Parts Service.
![](https://motoinstruction.ru/img/ducati/8/115147.jpg)
Rocker arm springs
Inspect the closing rocker arm springs carefully. There must be no cracks, deformation or slackening.
![](https://motoinstruction.ru/img/ducati/8/115148.jpg)