Short intervals of timing belt replacement for Imported vehicles (Citroen C4 ABA-B5NFU)

Four years and eight months has passed for the first time I met this citroen C4. This time, I took for 24 months of inspection and maintenance.

AL4 transmissions, which are said to be fragile, have been in good condition since the early days by regularly replacing 100% synthetic ATF.

MY2009 ABA-B5NFU NFU AL4 Mileage 61,000km

At the time taking this citroen, I heard that there was an harsh noise from the engine.

In this inspection and maintenance, the owner asked me to change the timing belt, so I asked you to look at the new parts before mounting, and said, "I hope any of these parts are the source of noise." I wished for the success of maintenance while turning several rotating parts round.

Compared to a car equipped with an RFJ engine with a displacement of 2 liters even in the same C4, this NFU engine has room for the working space in the engine room.

To remove the timing belt, remove the large engine mount insulator mounted on the right side of the engine, and this time gently support the oil pan with a floor jack to prevent the engine from sloping.

NFU was the type that the crank pulley was fixed with three bolts, so there was no need to loosen the crank pulley center bolt, and the way of fixing the crankshaft of the engine of the PSA without the positioning key was omitted.

The timing belt that appeared by removing the timing belt cover.

Coolant leakage was confirmed from the water pump.The cause of the noise was a water pump, and when rotated alone, it felt rough and rough.

In addition, the pulley of the timing belt tensioner was astringent to rotate, and the worst bearing might have been burned and locked.

The timing belt of the imported car, as well as that of the japanese car, the quality has improved, and the trouble of tooth losing and tearing has almost disappeared as before.

However, life-timet of he parts used in the rotating part have a shorter impression than the belt.I think that it is difficult of the timing belt exchange time of the imported car.The replacement intervals of every 40,000 kilometers safely is not a mistake.However, there are cases where 60,000 kilometers of driving is an appropriate replacement time, and there are examples where it is as long as a japanese car.

I refrain from guiding the timing belt change time (except when there is a noise at the time of check-in), and basically leave it to the customer's judgment.

I have prepared an SST to fix the cam sprocket so that it does not move, so the work has progressed remarkably.