Workshop Manuals Factory service & repair Alfa Romeo
01 1.7 16V Boxer engine (1712)02 1.9 JTD engine (1910)03 1.9 TD and TD Cat engine (1929)04 146 bodywork05 Engine overhaul: index and updates06 Engine overhaul: 1.3 and 1.6 Boxer (AR33501, AR33201)07 Engine overhaul: 1.7 16V Boxer (AR33401)08 Engine overhaul: 1.4, 1.6 and 1.8 Twin Spark 16V09 Engine overhaul: 2.0 Twin Spark 16V10 Engine overhaul: 1.9 JTD (AR32302)11 Engine overhaul: 1.9 TD (AR67501)12 Engine overhaul: 3.0 V6 (AR16101)13 Engine overhaul: 3.0 V6 24V (AR16102)14 Engine overhaul: 2.0 V6 Turbo (AR16202)
Alfa Romeo 145/146 Engines, 146 Bodywork and Engine Overhaul Manual (1994-2001)12 · Engine overhaul: 3.0 V6 (AR16101)
12 · Engine

Crankshaft refitting (page 3 of 3)

Make
Alfa Romeo
Model
145/146 Engines, 146 Bodywork and Engine Overhaul Manual
Year
1994–2001
Section
Overhauling
Engine overhaul: 3.0 V6 (AR16101)Crankshaft refitting · page 3 of 3

Using a torque meter, check that the characteristic data of the engine oil pressure limiting valve control spring are within the specified limits.

Check that the clearance between the lobe of the inner gear and that of the driven gear is within the specified limits.

Spring length With spring free With static load (14.6 kg) With dynamic load (21 kg)
54 mm 36 mm 28 mm
Clearance between pump casting rest surface and upper side of gears
Clearance between pump casting rest surface and upper side of gears 0.025 + 0.075 mm

Check that the clearance between the pump casing and the driven gear is within the specified limit.

Clearance between pump casting rest surface and upper side of gears
Clearance between pump casting rest surface and upper side of gears 0.025 + 0.075 mm
Clearance between pump casing and driven gear
Clearance between pump casing and driven gear 0.170 + 0.275 mm

Check that the ring gear teeth are not cracked or show signs of seizure; if they do, change the ring gear.

Working under the press remove the old ring gear;

accurately clean the contact surfaces of the new ring gear and of the flywheel;

evenly heat the new ring gear to 120° + 140°C and fit it on the flywheel; leave to cool naturally, do not force cool.

Checking the engine flywheel

Checking the oil pump

Measures clearance between pump casing and driven gear

Parts & tools for this job For 1994 Alfa Romeo 145/146

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