The timing belt transmits force between the crankshaft and camshaft, and through toothed pulleys it ensures the correct settings of the unit. Damage to this element leads to a break, which, in turn, causes the pistons to collide with the valves, causing the latter to bend.
For proper engine operation, each owner must know at what interval the Renault Logan timing belt is replaced, and for what purpose the timing marks are adjusted.
We have collected all the necessary information regarding cars operating on eight- and sixteen-valve units in this material.
RENAULT 130-C-174-80-R – original timing kit for Logan K7M 8-valve engine
7701477014 – article number of the original timing repair kit for 16 valve Logan K4M (belt and two rollers)
Installing the piston of cylinder 1 at TDC
Timing mechanism drive: 1 - crankshaft toothed pulley;
2 — timing belt; 3 — tensioner roller; 4 — toothed pulley of the camshaft driving the exhaust valves; 5 — toothed pulley of the camshaft driving the intake valves; 6 — support roller; 7 - coolant pump toothed pulley Before starting to replace the Renault Logan timing belt, it is important to fix the piston of the first cylinder in the corresponding upper limit point of the compression stroke position - this will prevent failure of the gas distribution phase settings. Ignoring this nuance will result in the normal operation of the motor being disrupted.
Keep in mind that in the power plants that power Renault Logan, the first cylinder is considered to be located closer to the flywheel, and not to the wheel that drives the crankshaft assembly.
When setting TDC, follow the marks on the camshaft pulley.
The pulley fastening bolt is turned clockwise until the marks of the camshaft timing pulley and the head cover are aligned with the mark.
The adjustment is checked using a specially designed installation pin with a 75 mm thread. It is screwed into a hole in the cylinder block designed for an M10 thread. When scrolling the crankshaft, at the moment the piston reaches the upper limit position, the finger reaches the crankshaft cheek, which will block subsequent scrolling.
Timing marks Logan with K7M engine (8 valves)
Car repairs based on K7M engines are carried out using 10 mm and 18 mm socket heads.
Sequence of actions on Renault Logan cars:
- The necessary unit is hidden by the right wheel, so it is dismantled. The wheel locks are only released when the Logan is on the ground. Secure the wheels with wheel chocks, raise the handbrake, and secure the front of the car with a reliable support.
(link to photo source) - We approach the area of the engine hidden behind the right mudguard.
(link to photo source) - We remove the strap responsible for the operation of the auxiliary units. Before removing, it is recommended to mark on the outside the direction in which it moves, since incorrect installation will lead to accelerated wear of the element.
(link to photo source) - By turning the tensioner protrusion clockwise, remove the strap.
- We release the remaining pulleys from the drive that transmits movement to the auxiliary units.
- To replace the automatic tensioner, you need to unscrew the fixing bolt.
- Then we dismantle the right engine mount.
(link to photo source) - We open access to the power plant crankcase by removing the protection from it.
- Using a spacer, install the support under the crankcase.
- Remove the wiring harness holder from the right bracket;
- We remove the bolts securing the right support to the body.
- We unscrew the three fixing bolts that provide the connection between the right support and the power plant, and get rid of the support that interferes with the work.
- We ensure that the piston is fixed at TDC.
- After removing the bolts, remove the timing belt protective cover.
(link to photo source) - We adjust the timing belt marks by turning the belt pulley mounting bolt clockwise so that the marked place coincides with the place where the head cover is marked;
(link to photo source) - If the procedure is carried out correctly, the red letter A marked on the timing belt will coincide with the designation on the pulley housing.
- To ensure that the work is performed correctly, remove the pulley that ensures the movement of the auxiliary units.
(link to photo source) - We check the coincidence of the marks of the crankshaft gear and the block.
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Timing belt marks for Logan K4M engine (16 valves)
When bringing the piston of the first cylinder of a sixteen-valve Renault Logan engine to the TDC position, the tool kit must be equipped with :
- Socket heads with dimensions of 15 and 18 mm;
- TORX E14 head;
- 13mm spanner wrench;
- Flat screwdriver;
- Clamps for crankshaft and camshaft units.
Algorithm of actions:
- We dismantle the bolts holding the front right wheel, we get the opportunity to get to the required unit by removing the wheel.
- We open access to the working space, freeing it from the right engine mudguard.
- Remove the accessory drive belt.
- Remove the right engine mount.
- We open the gas distribution mechanism drive by removing the top cover, which is mounted on three bolts and two nuts.
- By turning the bolt that secures the pulley, we set the timing marks, slightly not bringing them to the top point;
To fix Renault Logan camshafts, perform the following steps:
- We dismantle the intake resonator.
(link to photo source) - Using a flat-head screwdriver, pry up the camshaft plugs and remove them, pressing them out of the rear of the block.
(link to photo source) - If the piston is installed at TDC, the grooves located at the ends of the camshafts will be located horizontally, offset downward relative to the axis of the shafts;
- We install the camshaft retainer, maintaining this position of the grooves. If the position of the grooves is incorrect, the lock cannot be installed, so the valve timing is adjusted again.
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Replacing the timing belt Renault Logan 1.4
To replace the timing belt on a Renault Logan with a 1.4-liter 8-valve engine, there is no point in going to a technical station or car service center. Having a standard set of keys and screwdrivers, you can do everything yourself. The main thing is to follow the instructions below.
Removing a worn timing belt
The replacement process is best done in a pit or overpass, but if desired, a couple of jacks will be enough. We use the first one to raise the right side of the car, remove the right front wheel and fender liner. We also remove the crankcase protection. After this, use the second jack to raise the engine two to three centimeters. The load on the upper right support (see Fig. 1) is weakened and must be completely removed.
From the side of the wheel arch we gain access to the crankshaft, which is covered by a protective pulley. Unscrew the bolt and remove it. Loosen and completely remove the ridge belt tensioner. If you do not install a new roller, for convenience, its spring can be fixed with a self-tapping screw or a thin screw.
Now you can disassemble the timing case - the upper casing and protection. If there are marks on the camshaft and crankshaft, the task is simplified. It is necessary to turn the crankshaft until the mark on its pulley (see Fig. 2) coincides with the counter mark, and the mark on the camshaft pulley coincides with the Latin letter “D” stamped on the timing case.
It happens (rarely) that there are no corresponding marks on the shaft gears. In this case, you will have to set the ignition manually. Remove the coil from the first cylinder and unscrew the spark plug. Insert a thin long bolt or screwdriver into the hole and use it to locate the piston. Rotate the crankshaft until it rises to its highest point.
When the ignition is set, put the appropriate marks on the pulleys, and best of all, fix them. Any available tool will do for this. After these procedures, you can remove the old belt. To do this you will need to remove the tensioner pulley.
Installing a new timing belt on Renault Logan 1.4 8 cl.
When replacing a belt, the most important thing is not to throw off the ignition point or TDC (top dead center). Therefore, wear the belt so that it is tensioned as much as possible and the shaft gears do not have to be turned. When the belt is installed, you need to put the roller in place. To make it more convenient, cock the spring to the maximum and secure it with a screwdriver or thin screw. Reinstall it and release the spring.
After installing the roller, check the belt to ensure that it does not move back and forth or up and down by more than 1.5 cm in all exposed areas. If this happens, try tightening the roller spring or moving it along the mount. When everything is done, we assemble the timing mechanism.
We return the cover and protection of the gas distribution mechanism to their place, and install the generator ridge belt in place. It is more convenient to install the roller on this belt in the same way as on the timing belt, but the tension in this case does not play such a big role.
Changing the Renault Logan timing belt
The Renault Logan timing belt has a fairly short lifespan , so the moment when it needs to be changed comes after 60 thousand km that the car travels.
Replacing the timing belt Renault Logan 8 valves (K7M)
In addition to the set of tools with which the piston of the 1st cylinder was installed at TDC, a wrench with a dimension of 10 mm . The tensioner is turned with a special wrench or pliers with bent jaws.
Actions when replacing a used Renault Logan belt:
- After installing the piston at top dead center, disconnect the accessory drive wheel and the crankshaft.
- We remove the lower part of the timing cover, secured with three bolts.
(link to photo source) - Make marks, based on which, during installation you will be able to determine the correct position of the tensioning element, after which, loosening the fixing nut, turn the tensioner clockwise.
- In order of priority, release the pulleys of the water pump, camshaft and crankshaft, as well as the tensioner mechanism from the belt.
(link to photo source) - When changing the tensioner, please note that the element is installed with the key holes facing outward.
- The new belt is fixed according to the direction of movement of the element indicated by the arrows during engine operation, starting with the camshaft toothed pulley, then transferred to the pulleys of the water pump, crankshaft and tensioner.
- By turning the roller counterclockwise, we ensure the belt tension.
- Tighten the tensioner fixing nut.
- Attach the wheel that transmits movement to the mechanisms of the auxiliary elements to the crankshaft, rotate the shaft 2 times and make sure that the marks that regulate the correct position of the camshaft and crankshaft pulleys match.
- Pay attention to the degree of tension of the timing belt. If the drive link twists 90 degrees or more, the tension is loose.
- After aligning the marks and checking the tension, remove the pulley that drives the auxiliary units;
- Reinstall all dismantled elements.
Replacing the timing belt Logan 16 valves (K4M)
Replacing the timing belt on an aggregated sixteen-valve Renault Logan engine is done with the tools included in the kit for installing the piston at TDC, using a 10-mm socket and a 6 mm hexagon.
How to change the belt:
- After installing the TDC piston, remove the auxiliary wheel by removing the corresponding bolt.
- Remove the belt protection cover by unscrewing the corresponding fasteners.
(link to photo source) - Install the hexagon into the corresponding groove of the tension roller so that it does not rotate when the nut is loosened.
- After removing the timing belt, get rid of the roller mounting nut.
- Remove the belt intermediate roller secured with a bolt and washer.
- When installing a new tension element, the protrusion must fit into the groove of the motor. To tighten the nut, a force of 7 Nm is required.
- We tighten the Renault Logan timing belt.
- When fixing the roller with a hexagon, you need to move the movable mark protruding on the outer part of the tensioner body 7-8 mm clockwise.
(link to photo source) - Install the wheel that transmits movement to the auxiliary mechanisms, then remove the auxiliary fixing elements of the crankshaft and camshaft.
- Wrap the bolt securing the accessory wheel and crankshaft 6 times.
- We loosen the nut responsible for fixing the tensioning mechanism, and bring the movable mark to the fixed one. We tighten the fastening with a torque wrench, applying a force equal to 27 Nm;
- Using the method of installing the piston of the 1st Logan cylinder at TDC, check whether the gas distribution phases are adjusted correctly;
- Collect all dismantled elements.
Logan timing belt replacement price
With us you can change the cylinder head drive with tangible benefits compared to contacting an official dealer of the brand. The price we set for replacing the timing belt for Renault Logan will allow car owners to service their car with significant savings and without compromising its reliability. After all, our specialists strictly follow dealership auto repair and maintenance technologies.
For the Logan timing belt replacement carried out under our service conditions, the cost is calculated based on several factors:
- cylinder head type (8 or 16 valve);
- drive type;
- the need to adjust valves;
- type of components used (original or duplicate).
To find out how much it costs to replace a timing belt on a Renault Logan and to sign up for car service, contact our car service representatives by phone or write to us online.
Replacing the timing belt on the k7j engine of the Renault Logan car
On a Renault Logan car (K7j 1.4 l engine), according to the maintenance regulations, the timing belt must be replaced once every 60,000 km.
Necessary tools and equipment
— Jack (diamond-shaped, rolling or bottle)
— Special key for tensioning the timing belt
— Bolt (locating pin) 75 mm long for fixing the crankshaft from turning
— A set of different-sized heads, a ratchet wrench, a wrench
— Jack up the car and remove the right front engine wheel
— Remove the plastic mudguard in the wheel arch
— We install the support (jack) along the sump plug and jack up the engine. A piece of thick rubber or a wooden block must be placed between the pallet plug and the jack.
— Remove the upper engine mount
— Remove the crankshaft pulley with the generator drive belt
— Remove the upper protective cover of the timing drive
— Remove the lower protective cover of the timing drive
— Install the pistons of the 1st and 4th cylinders at TDC
— We screw the installation pin into the technological hole of the cylinder block to fix the crankshaft
The procedure for replacing the timing belt of the k7j engine of a Renault Logan 1 car
When replacing the belt, do not rotate the engine crankshaft and camshaft relative to each other to avoid damage to the valves.
— Using a 13mm wrench, unscrew the nut securing the tension roller and remove it
If you are replacing just the belt, you do not need to remove the tension pulley. Just loosen the tightening of the nut securing it.
— Remove the timing belt
From the crankshaft pulleys, camshafts and pump.
— We install the new tension roller in place and tighten the nut securing it
Do not tighten the nut completely.
— Install a new timing belt
