Q:
A: I have only done this on the "Phase 1" 306. the last year for that model was 1996, I believe. TIMING BELT REPLACEMENT: It's the same as all the other Peugeot TU engines. Basically you: 1. Disconnect battery negative cable so the car will not start accidently. 2. Remove the plastic covers that protect the timing belt. After removing the top cover, turn the crankshaft with a spanner by hand and insert a 10mm bolt in the camshaft sprocket timing hole located in the cylinder head. This PREVENTS camshaft from moving even a little bit. Notice timing mark's position in metal sprocket. 2.5.... With the camshaft hole correctly positioned, now insert a 6mm bolt into the timing hole behind the flywheel, edge of motor block. Rotate crankshaft by hand SLIGHTLY 1/16 inch if needed to insert bolt. This prevents crankshaft from moving. 3. the lower cover is the hardest. Not much room for your hands. And remove auxiliary drivebelt for alternator. (2nd belt if has power steering) Remove the crankshaft pulley, 3 bolts, noting which way round the pulley is fitted. Now there is one more bolt for the cover. Remove lower plastic cover. 4. See the timing belt tensioner? Loosen the tensioner pulley nut. Highly recommended to replace tensioner at the same time. You don't want to return in 6 months for a noisy pulley replacement. Turn tensioner with a square bar, clockwise, retighten nut. (to free the belt tension). 5. After all plastic covers are off, the water pump is starring you in the face. Consider replacing that too. It's about 40 quid? and you don't want to return for that job soonafter. 6. Now it's time for lunch. DONT ALLOW any pulleys or gears to move!!! Notice exactly where timing marks are located! (If cam or crankshaft moves ONE tooth, = problems starting engine. moves 4 teeth = damage upon starting) 7. Timing belt on. New?Tensioner pulley back on. New? water pump in? New Belt (see direction arrows on belt!)should be tight enough so that it only twists 90 degrees between your thumb and forefinger. Remove blocking bolts. Hand crank the belt CLOCKWISE through 4 revolutions and check that your timing marks , and holes, on the two pulleys are as they were and should be. Rotate 2 full turns again and check again! 8. Replace all covers. Replace auxiliary belt(s). Reconnect battery.