Number of cylinders................................................................................................................................................................................... 4

Cylinder arrangement .........................................................................................................................................................................In line

Cycle.......................................................................................................................................................................................... Four stroke

Induction system:

M65 engine .................................................................................................................................................................... Naturally aspirated

M85T engine ..........................................................................................................................................................................Turbocharged

Combustion system ..............................................................................................................................................................Direct injection

Nominal bore ................................................................................................................................................................... 97,0 mm (3.82 in)

Stroke ............................................................................................................................................................................ 100,0 mm (3.94 in)

Compression ratio ............................................................................................................................................................................. 17.5:1

Cubic capacity ................................................................................................................................................................ 2,9 litres (183 in 3 )

Firing order .................................................................................................................................................................................... 1, 3, 4, 2

Valve tip clearances (cold) ............................................................................................................................................. 0,35 mm (0.014 in)

Lubricating oil pressure (maximum engine

speed and normal engine temperature) .................................................................................................. 420 kPa (61 lbf/in2) 4,3 kgf/cm 2

Capacity of a typical lubricating oil system: (1)

- includes oil filter .........................................................................................................................................................9,4 litres (16.5 pints)

- sump only .....................................................................................................................................................................9 litres (15.8 pints)

Typical coolant capacity (engine only):

M65 engine .................................................................................................................................................................8,75 litres (15.4 pints

M85T engine .............................................................................................................................................................. )9,5 litres (16.7 pints)

Direction of rotation ...............................................................................................................................................Clockwise from the front

Battery .....................................................................................................................................................One 12V, 770A SAE or 510A IEC

Weight of the engine (wet):

M65 engine ...........................................................................................................................................................................277 kg (611 lb)

M85T engine ........................................................................................................................................................................ 291 kg (642 lb)

Weight of the engine with a PRM 260D gearbox:

M65 engine .......................................................................................................................................................................... 345 kg (761 lb)

M85T engine ........................................................................................................................................................................ 359 kg (791 lb)

Weight of the engine with a Hurth HSW250A gearbox:

M65 engine .......................................................................................................................................................................... 318 kg (701 lb)

M85T engine ........................................................................................................................................................................ 332 kg (732 lb)

(1) The capacity of the sump will vary according to the installation angle. Fill to the "Full" mark on the dipstick. Do not exceed the "Full"

mark, see "Caution" on page 47.

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