Timing belt replacement: Seat Inca SDi (AEY, AHB)
Step-by-step timing belt replacement for the Seat Inca SDi (AEY/AHB): 70 steps. What to remove, in what order, and what to check after.
Workshop procedure for SEAT — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: platform codes 1.7, SDI, |, 1.9
- Timing position: the crankshaft or camshaft is set and locked during this job
- Special tools named: feeler gauge
Don't miss
- Never turn the engine in the direction opposite to that of normal operation
- Repeat the procedure if the special tools do not fit properly
- Use a wrench to counterhold
📐 18 workshop diagrams for AEY
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
Preparation and removal
- Never turn the engine in the direction opposite to that of normal operation
- Remove the ancillary drive belt tensioner
- Remove the timing belt upper cover
- Remove the coolant pump pulley
- Remove the valve cover
- Align the crankshaft timing marks on the flywheel/gearbox
- Note: Repeat the procedure if the special tools do not fit properly
- Remove the tensioner pulley
- Camshaft gearwheel:
- Loosen the bolt
- Note: Use a wrench to counterhold
- Loosen the camshaft gearwheel
Installation and checks
- Push in the timing belt with firm thumb pressure
- Crankshaft pulley (bolts)
- Fit the timing belt and camshaft gearwheel together
- Tighten the camshaft gearwheel
- Note: Avoid bending, torsion or traction
- Remove the special tools
- Rotate the engine 2 rotations by hand
- Measure the clearance on the other side
- Fit a feeler gauge at both sides, half the thickness of the clearance
- Refit the coolant pump pulley
- Refit the valve cover
- Fit the ancillary drive belt tensioner
Ask TorqFix about your Seat AEY — 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 Seat AEY — free → or sign up free to see the drawingsOther SEAT procedures
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- Fitting locations overview
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- Checking modulating piston movement sender and quantity adjuster
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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
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.