Ducati Scrambler Panduan Pengguna Pengukuran dan Penyetelan Katup - Halaman 7
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Determine if valves are within specification.
Determine if the clearances are within specification by comparing the
measurements you recorded to the Factory Specification. Any measurement that
exceeds Factory Specified Clearance will require changing a shim to bring the
clearance back into Factory Specification. The basic sequence is:
1. Look at the values you measured and recorded in (Column A) APPENDIX 1.
Note which measured clearances exceed the Factory Specified Clearance
(Column B).
2. Subtract the lowest Factory Specification (.1 for intake, .0 for exhaust) from
your measurement and record that number in Column C.
3. Measure the existing shim and record this number in Column D.
4. Add Columns C and D in order to determine the size of the new shim to bring
the clearances back into specification. Note, it is not always possible to get
the exact shim size. A larger shim can be made to the correct size using
emery paper or 400 grit wet/dry sandpaper to adjust the size of the shim.
Refer to the following sections for shim removal, measurement, and replacement.
Remember to place the cylinder being worked on at TDC for ease of shim removal
(no tension on the valve/shims).
Refer to Appendix 1.
Opening Shim Removal, Measurement, Replacement
segregate and mark all pieces/parts removed so there is no question on reassembly.
Once the clip is removed the opening rocker (5) will need to be slid out of the way
to access the opening shim. This will take some wiggling/working the cams back and
forth to get the opening rocker to slide. If the cam belts are removed, wiggle the
cam gear to get the rocker to slide off. If the cam belts are still in place, use the
engine turning tool to wiggle the shaft and release the opening rocker to slide to the
side (arrow).
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If either the opening
or the closing shims
require replacement
to bring the gap(s)
into specification
follow this procedure.
Pry off the spring clip
(4) from the rocker
shaft.
WARNING, this clip will
fly into your eye or to
parts unknown if it
isn't restrained.
Note: be sure to
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