TorqFix

33 gearbox — ALFA ROMEO

33 gearbox on Alfa Romeo: 21 steps, engines AR30146, AR30168, AR30182, AR30502. What to remove, in what order, and what to check after.

Workshop procedure for ALFA ROMEO — the exact step sequence and torque figures, straight from real workshop data.

21 steps 24 engine codes

🧭 Before you start

Fits: platform codes 1.2, |, 1.3, S, 1.4, IE, 1.5, GIARDINETTA, QUADRIFOGLIO, TI, 1.7, 16V

  • Opens: gearbox oil

🔧 Engine codes this applies to

AR30146AR30168AR30182AR30502AR30504AR30508AR30514AR30520AR30550AR30558AR30586AR30587AR30732AR30734AR30736AR30737AR30743AR30746AR30747AR30750AR30751AR30751AAR30753AR30755

📐 2 workshop diagrams for AR30146

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

33 gearbox — AR30146 · diagram 1
33 gearbox — AR30146 · diagram 2

📋 Procedure

  1. Disconnect the battery
  2. Refill the gearbox
  3. Raise the vehicle
  4. Drain the gearbox oil
  5. Remove the distributor
AR30146? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Disconnect the engine support
  2. Disconnect the speedometer sensor
  3. Disconnect the starter motor
  4. Remove the exhaust pipe
  5. Disconnect the drive shafts from the gearbox
  6. Remove the flywheel inspection cover plate
  7. Disconnect the reversing light switch from the gearbox
  8. Disconnect the gearbox support
  9. Place a jack under the gearbox
  10. Lift the gearbox slightly until the gearbox support bolt can be removed
  11. Remove the engine/gearbox mounting bolts
  12. Remove the gearbox
Workshop diagrams

Ask TorqFix about your Alfa Romeo AR30146 — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.

Ask about your Alfa Romeo AR30146 — free → or sign up free to see the drawings

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.