About how to set the timing marks on the VAZ-2109, you need to know all users of this car. Unfortunately, despite the high quality of the belts, they tear quite often. And not at all nine the breakage is painless, on some engines the valves are bent. Carefully study the entire process of replacing the belt, so that in the event of a breakdown, repair yourself. Unfortunately, the timing belt does not ask you for permission to tear. And only timely replacement with a quality belt, as well as the installation of all marks, will help you avoid unscheduled repairs.
When do I need to change the timing belt?
If you refer to the operation manual, then there is a period of 60 thousand km. But this is only if the new "nine". The VAZ of this model has long been discontinued, so it would be better for you if you reduce the frequency of replacement to 40-45 thousand kilometers. The fact is that all the engine mechanisms gradually wear out, become unusable, which affects the correct functioning of the systems.
And the timing belt is the element that is responsible for ensuring that the crankshaft and camshafts work as synchronously as possible. Along with the belt, a roller must be replaced. You should also inspect the pump. She has a resource of 90 thousand kilometers. Therefore, it must be changed together with every second belt, and how to set the timing marks on the VAZ-2109 during repair will be described below. Thus, you will ensure scheduled repairs of all units that are in the drive structure. An unscheduled belt replacement is carried out only in case of breakage or jamming of the pump, roller.
Preparing for belt replacement
Before replacing, you need to do a few things. Partial disassembly is required. First, remove the alternator belt. To do this is simple, just loosen the upper nut on the bracket. After that, the generator moves towards the internal combustion engine, the belt tension decreases, it can be easily removed. Before setting the timing marks on the VAZ-2109, you will need to remove the protective casing from plastic. It is attached to the unit using three bolts.
Now loosen the wheel bolts and lift the right side on the jack. Do not forget that under the left rear wheel you need to put two stops. For fidelity, you can even squeeze the hand brake. If there is protection, then it must also be dismantled so that it does not interfere. The final touch is unscrewing the pulley mounting bolt. On carburetor cars it is easy to keep it from spinning. On the injection ones, you will have to rest against the teeth of the flywheel crown with a strong screwdriver so that the timing belt alignment marks match.
Removing the belt, installing a new
Now that the alternator drive pulley has been removed, and access to the timing belt has opened, you can start dismantling it. There is nothing complicated in this action, with a 17 key, unscrew the nut that secures the roller. When it loosens, the belt tension decreases. It is easily removed - first from the camshaft, then from the crankshaft pulley. This is where the most interesting part starts - setting the VAZ timing marks. However, if you do not rotate the shafts, you can simply install a new belt. But you still need to check.
Look at the camshaft pulley . It has a recess closer to the outer diameter. This is a mark that should be aligned with a strip that is screwed to the engine block from the passenger compartment. Turn the camshaft clockwise until these notches are aligned. Now look at the crankshaft pulley, it is quite possible that it will be sufficient to combine the marks on it only, because this is the "nine". VAZ provided for the installation of a drilled recess, which is combined with a mark on the block. But it is better if the crankshaft is installed according to the marks on the flywheel - you need to look through the window located in the clutch housing. By aligning the long mark on the flywheel with the slot in the plate, you will ensure maximum shaft synchronization.
findings
Enough of a short excursion to learn how to set the timing marks on the VAZ-2109. This is nothing complicated if there is at least a pair of keys, a jack and good vision. However, it will be much more convenient if you have at hand a flashlight and a key for the tension roller. But if there is no last, then you can use two bolts and a screwdriver. The whole assembly consists in installing a new belt, tightening the belt so that in the longest free plane its maximum rotation is no more than 90 degrees around its axis.