360 Modena gear box manual - All Ferraris

Component maintenance and overhaul
In order to carry out a visual check of the components, it is advisable to thoroughly wash all the
metallic parts using a solvent, biodegradable if possible, and blow them with compressed air.
Pay particular attention to the internal lubrication channels, on the gearbox shafts, housing and
covers, which must be spotlessly clean.
Check that the housing and the covers show no indentations and that the bearing seats are intact,
without scoring or ridging. If this is the case, they must be replaced immediately.
Check that the surfaces and the edges of the gear toothing show no signs of wear or spalling. The
contact area must extend over the whole surface of the toothing and must look smooth and uniform.
Replace all gears showing signs of said defects.
Before reassembling the double gears (31 and 32), it is necessary to visually check the coupling
surfaces: they must show no signs of scoring or buckling. Check that the gears have maintained the
minimum specified interference with the lay shaft ( D 1.01). If this is not the case, replace the
components immediately.
Check the sides of the sliding sleeve for signs of wear, along with the contact surfaces of the gear
shift forks. It is extremely important that the contact surfaces of the fork and the sleeve remain
upright in respect of the support rods.
Check that the shimming surfaces of the idle gears, the spacers and the shoulder rings show no
signs of snagging or seizure. Replace if this is the case.
Check that the engaging teeth of the sleeves and of the idle gears show no signs of snagging,
spalling or excessive wear, which would impede engagement.
Check the threading and the grooving on the shafts and the synchronised elements on the reverse
driving gear are in good condition.
Plugs for tapping the machined holes are fitted on the gearbox housing along with tapered thread
plugs (56, 57 and 58) which close the lubrication ducts. When disassembling, apply LOCTITE 510
on the threading.
The oil bleeding neck (59) is fitted flush on the housing. Check that it is not clogged with foreign