Camshaft Replace of CRDI Engine

Be careful not to lose the tentative pin, he pulled out.

Then unscrew the bolt 10, which presses the fuel pump to the right fasteners cam, it does not interfere take that same mount. After unscrew all the screws and remove the fasteners securing the camshaft.

Camshaft is free, it is now possible to change and collect all in reverse order, if necessary, you can replace the packing.

Continued analysis engine described in the article replacement of hydraulic engine CRDI .

Before installing the camshaft it should be lubricated with a thin layer of engine oil.

When the camshaft is installed, its attachment screwed, we need to put back a star, and in the right position, because it is a gas distribution mechanism that is responsible for synchronizing the movement of the pistons and the opening/closing of the valves.

We put an asterisk on the camshaft, without screwing it, turn the camshaft so that the mark on the sprocket aligned with the plane of the cylinder head. If the position is unstable, it is possible to turn the cam on the half-turn, again aligning the mark with the plane of the cylinder head. Without moving the camshaft sprocket clear.

Now you need to determine the position of the crankshaft, which would be the first (closest to the timing belt) cylinder was in the "top dead center" or TDC, that is, in the highest possible position. This can be done by combining the marks and the crankshaft pulley on the motor, all the labels are, they need to find. These tags may be closed by various protections.

There is another way-can be inserted directly into the first cylinder to the piston through the nozzle orifice something long, such as needle and rotating the crankshaft to determine the highest point. Do not rush it must be done accurately, it may seem that TDC is blurred, that is, lies in the area of ​​2 °-3 °, find the middle position, and it will be what we want. Two turns one revolution of the crankshaft has a cam, then there is an error of 1 ° to 0.5 ° crank is on the camshaft. It's okay, timing is not the small teeth, such error is not critical, because the cam gear has 42 teeth, that is, on each tooth has 360 °/42 ≈ 8.6 °. So all the errors of less than 4 ° on the camshaft does not allow us to miss one tooth. When TDC determined look at the crank pulley, you can take a picture, the main thing to remember is the position of some members of fixed elements. In my case, the balance weight cut pointed exactly in the middle of the cap of one of the bolts that secure the dust cover (circled in green).

It remains to throw a belt on a star and put it on the camshaft. This is the hardest. Include a star in the belt so that when dressing cam guide pin was in his groove on the sprocket, the label of this should stand out at the head of the block. If the label is in a different place and the guide in the slot does not fall, then perekin'te belt on one tooth and try again. This is not done with his bare hands, and with the help of some of the lever. I used a wrench, placing it on the extreme cam mount. It is just off the left end on the dirty pictures below.

When the dress a gear with a belt on the camshaft to the crankshaft of the engine to scroll and make sure that everything is set up correctly and labels are not moved out to each other. Only then can we continue to quietly collect the motor. In my case, slip one tooth would cause a deviation of the crank angle of 17 °. Even to the eyes is hard not to notice a difference.

In the photos above the engine clean even very clean, everything looks wonderful! But in reality, the engine is more likely to look like this:

I, too, was all real, but I judged the well-washed the engine.

Cars, which used the same engine (1.5 CRDI D3EA, 3 cylinder):

1. HYUNDAI Accent
2. HYUNDAI Getz
3. HYUNDAI Matrix

Cars, which used the same engine (2.0 CRDI D4EA, 4 cylinders)

1. HYUNDAI SANTA FE
2. HYUNDAI TRAJET
3. HYUNDAI TUCSON
4. KIA CERATO
5. KIA SPORTAGE