360 Modena gear box manual - All Ferraris

• Fit the bushing AV 3284 in the pinion resting on the front tapered roller bearing (25).
• Place the dial gauge CS106524 01 on the bushing AV 3284, along with the weight (p) and read
the deviation “M”.
• To determine the real positioning of the tapered roller bearing in respect of the differential axle
“0” carry out:
P2 = d/2 + M
To obtain the correct positioning of the pinion in respect of the differential axle “0” the result must
be:
P2 = P1
where “P1” represents the previously measured value with the pinion removed from the housing;
“d” is the diameter of the seat of the differential's left cover, previously measured.
If the value is different, increase or decrease the thickness of the shim (28), to obtain this correct
value.
• Remove the lay shaft from the gearbox housing.
• Position the lay shaft (a) onto the base of tool AV 3255.
• Fit the roller cage (16), the elastic ring (35), the complete 1 st -2 nd speed synchroniser (36) and
bring flush using tool AV 3262.
• Using a tubular punch AV 3263, insert the bushing (37) for the 1 st speed gearing.
• Fit the roller cage (38), the 1 st speed gearing (39) and, using punch AV 3263, bring the
shouldering fifth wheel flush (40).