Removal of toothed belts must be carried out on a cold engine.
Withdrawal
1. Disconnect ground wire from battery.
2. Remove V-belt.
3. Remove upper and lower toothed belt guards.
4. Turn the crankshaft clockwise to the TDC position of cylinder 1 behind the belt pulley using a 32 mm wrench.
5. In this position, insert the setting tools into the pulleys of the camshaft and high pressure fuel pump. To fix the Bosch fuel pump pulley, tools with a diameter of 6 mm are used, and for the CAV pump - with a diameter of 9.5 mm.
6. Loosen the timing belt tensioner bolts.
7. Remove toothed belts.
Attention! After removing the toothed belt, the crankshaft must not be rotated, as the pistons may hit the open valves.
Installation
1. Place both toothed belts on the pulleys without turning the pulleys. Installation of toothed belts begin with the crankshaft pulley and then, sequentially, on the following pulleys, counterclockwise. As a result, the loose side of the belt falls on the spring-loaded idlers.
Attention! The arrows printed on the belts indicate the direction of the working rotation of the engine.
2. Insert the belts by the tension rollers, ensure the tension of the belts with the springs and tighten the bolts.
3. Adjust the phases of the gas distribution system.
4. Install timing belt covers.
5. Connect ground wire to battery.
Adjustment
1. For fine adjustment, it is necessary to use a mandrel to set the crankshaft to the TDC position (Ford fixture 21-104) and mounting bracket (Ford fixture 21-105) to fix the camshaft.
2. Rotate the crankshaft two turns at the pulley.
3. Remove toothed belt covers.
4. Remove the cylinder head cover.
5. Turn the crankshaft to the TDC position of cylinder 1 using a 32 mm wrench. Turn the crankshaft pulley clockwise with a wrench. The crankshaft is in the TDC position if the groove on the end of the camshaft is parallel to the top plane of the cylinder head, with the larger semicircle at the top.
6. Unscrew the plug on the engine block on the front side of the engine, between the high pressure fuel pump and the generator, and instead of the plug, screw in a drift to set the crankshaft to TDC.
7. Turn the crankshaft clockwise with a ring wrench until it stops in the mandrel, while accurately fixing the crankshaft.
8. Unscrew the 4 bolts securing the camshaft pulley. The pulley should remain on the shaft and turn easily.
9. Insert a square or steel plate 5 mm thick into the groove of the camshaft. Turn the camshaft with the square until the square stops against the cylinder head. Use a feeler gauge to measure the gap on the other side of the square, between the square and the cylinder head. Insert a feeler gauge, the thickness of which is half the measured clearance, and turn the camshaft until the square stops against the feeler gauge. On the other side of the square, insert a second feeler gauge of the same thickness between the end of the square and the cylinder head.
10. Insert the setting tool into the camshaft pulley.
11. Loosen tensioner fixing bolts.
12. Press firmly on the toothed belt from the side opposite the tensioner and release the belt. As a result, a uniform tension of the toothed belt is produced.
13. Tighten the camshaft pulley and tensioner bolts.
14. Insert the high pressure fuel pump pulley setting tool.
15. If the setting tool does not fit into the fuel pump pulley, loosen the tension and remove the high pressure fuel pump drive timing belt.
16. Rotate the fuel pump pulley to a position where the tool can be installed.
17. Install and tension the toothed belt in this position.
18. Remove the setting tools from the pulleys, the square from the camshaft and unscrew the mandrel to set the crankshaft to TDC. Screw the plug into the engine block.
19. Install the cylinder head cover.
20. Install timing belt covers.
21. Install V-belt.
22. Connect ground wire to battery.
Visitor comments