Genuine Audi 80 Camshaft

Audi 80 Camshaft Parts and Q&A

• Camshaft
  034-109-021-AK
  Q: How to remove the camshaft and valve lifter on Audi 80?

  A:

  In case the engine still resides in the car, first lose the battery negative lead, the air cleaner and fuel injection parts, lose all applicable wiring, cables, and hoses, lose the distributor, loss the upper radiator cowl and upper part of the inlet manifold, lose the drivebelts of the crankshaft pulley, and in some cases the power steering pump and air conditioning compressor, leaving the hoses in place. The next step is to screw off the nuts/bolts and loosen the valve cover, retrieving the reinforcement strips and gaskets with a note of where the cable holders are located. Take out the upper Timing Belt cover and spacers with an Allen key, making sure the lower cover has not been removed. When the Piston in the No 1 cylinder is in TDC at the compression stroke, twist the engine using a socket in the crankshaft pulley bolt until the notch in the crankshaft pulley is in line with the pointer in the oil pump housing or lower timing cover, or the O mark in the Flywheel/ driveplate is in line with the pointer in the bellhousing aperture. Make sure that the valves on No 1 cylinder are closed with the cam peaks facing upwards and with 10-valve engines the indentation on the rear of the camshaft gear correctly aligned to the upper surface of the valve cover gasket or with 20-valve engines, the corresponding indentation on the valve cover. Unscrew the water pump fixing and adjustment bolts, turn the pump clockwise to relieve the stress on the timing belt and take the timing belt off the camshaft gear. Unthread the centre bolt of camshaft gear when in place in the gear, yet keep that in place, remove the gear of the camshaft, and remove the Woodruff key. Check that all bearing caps are marked with their number, and marked to identify the one necessary, and make sure the camshaft is taken off as indicated in order that it may not be distorted. To remove bearing caps 1 and 3 nuts of the 10-valve engines, unscrew and remove the nuts of the bearing caps in number 1 and 3 in a diagonal order, and gradually unscrew and remove the nuts of the bearing cap number 2 and 4, and then lift out the camshaft and dispose of the oil seal. With 20-valve engines, unscrew and remove the nuts of the exhaust camshaft bearing caps 2 and 4 followed by successively unscrewing and removing the nuts of bearing caps 1, 3 and 5 in an anti-clockwise order and then lifting out the exhaust camshaft and disconnecting it to the chain. The next step is to unscrew and remove the nuts of the inlet camshaft bearing caps 7, and 9, then in the same order screw out the nuts of the inlet bearing caps 6, 8, and 10, followed by the removal of the inlet camshaft and the chain. Lastly, prepare a box with internal partitions to distinguish the positions of bucket tappets, take out the hydraulic bucket tappets, and put them inside the box in an upside-down position to ensure that the oil does not drain out.