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)07 · Engine overhaul: 1.7 16V Boxer (AR33401)
07 · Engine

Removing the thermostat unit

Make
Alfa Romeo
Model
145/146 Engines, 146 Bodywork and Engine Overhaul Manual
Year
1994–2001
Section
Overhauling › Removing the thermostat unit
Engine overhaul: 1.7 16V Boxer (AR33401)Removing the thermostat unit
  1. Slacken the screws fastening the fuel manifold support brackets and remove it complete with injectors, pulse damper and pressure regulator.
  2. Retrieve the cable and hose support bracket.
  3. Retrieve the engine lifting brackets.
Engine diagram showing fuel distributor manifold removal

Removing the thermostat unit

  1. Disconnect the coolant outlet hoses from the intakes.
  2. Disconnect the thermostat unit connection pipe from the pump coolant inlet union.
  3. Slacken the fastening screw and remove the thermostat unit complete with hoses.
Engine diagram showing thermostat unit removal

Removing the idle air distributor

  1. Disconnect the oil vapour recirculation pipe from the separator.
  2. Disconnect the additional air hoses for idle speed from the intakes.
  3. Slacken the fastening screw and remove the idle air distributor complete with hoses.
Engine diagram showing idle air distributor removal

Removing the brackets

  1. Slacken the fastening screws and remove the power steering pump support bracket.
  2. Slacken the fastening screws and remove the alternator support bracket.
  3. Slacken the fastening screws and remove the water pump inlet union and conditioner compressor support; retrieve the seal.
Engine diagram showing bracket removal

20 ÷ 24 Nm
2.0 ÷ 2.5 kgm

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

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