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Replacing Cam Belt – 1998 Audi A3 1.8T (Engine Code AGU) REMEMBER - This is a guide. If in any doubt, seek professional Mechanical Advice. SEAT The marks on the flywheel to gearbox and cam sprocket to cam cover should still be aligned. Now carefully rotate the engine via the crank sprocket a few complete turns. If you sense any sudden resistance STOP IMMEDIATELY and recheck your timing marks. You will feel compression pressure, but should not feel sudden resistance as this would be a valve hitting a piston….not good!! Unfortunately resetting the timing at this point would require the removal of the tensioner and pulley again, and you would need to press the piston of the tensioner back into the body and reinsert the pin. So my advice it to check and double check so you get the timing right first time!! Well hopefully by this point you should have the new timing belt fitted. Well done! Now you just got to get all those parts you've removed back on the engine. I hope you remember where everything went !! Remember, take your time and this should be a very straight forward procedure. Some torque wrench settings Bottom and middle cam belt covers to engine - 10Nm (use threadlocking compound) Vibration damper/crank pulley to crank - 40Nm Engine support to cylinder block - 45Nm (Thats all I have for torque wrench settings)
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