2. The need to bring the piston (to her) in the TDC position occurs during many procedures, in particular, such as removing / installing camshafts and timing drive components.
3. Make sure the transmission is in neutral (position "R" on models with AT), then apply the parking brake firmly, or chock the rear wheels of the vehicle. Also immobilize the ignition system by disconnecting the primary circuit wiring connectors of the coils and removing the assemblies of the latter complete with candles (see chapter Settings and ongoing maintenance).
4. Bringing any of the pistons to the TDC position is done by turning the engine crankshaft in one of the ways described below. Looking at the engine from the front (from the drive belt), the normal direction of rotation of the crankshaft is clockwise. Remember that attempting to turn the shaft counterclockwise can lead to a violation of the timing belt adjustments:
- a) The most effective method is to turn the shaft in the normal direction using a bolt screwed into the end of its front trunnion using a ratchet-driven socket wrench;
- b) Save time with remote starter switch (follow the manufacturers instructions). As soon as the piston is close enough to the TDC of the end of the compression stroke, the starter stops and further adjustment is carried out by the method described in paragraph (A);
- c) With the presence of an assistant, the preliminary cranking of the engine can be carried out in short jerks from the driver's seat under the guidance of the operator. The principle is the same as described in paragraph (b). The final adjustment, again, is done manually, using a socket wrench (see point a).
5. Install the compression gauge in the spark plug hole of the first cylinder (see Part C of this Chapter - use a compression tester with a threaded nozzle, and start turning the crankshaft at the pulley bolt in the normal direction.
6. As the piston approaches the TDC position of the end of the compression stroke, the pressure in the cylinder will begin to increase, which is easily monitored by the compression gauge. Continue turning the shaft until the timing marks on the crankshaft pulley are aligned. If the TDC position is accidentally passed, rotate the shaft two more full turns in the normal direction.