1.5 blueHDI engine noise

[Chiko002]

I know eventually I have to do it. Don't know whats the cost. How much does it cost in yours? I'm hoping Citroen will call in

[owl]

I know eventually I have to do it. Don't know whats the cost. How much does it cost in yours? I'm hoping Citroen will call in

Be carefull, I heard that sometmes Citroen is deciding and closing car’s file as “no need to change” I think according to noise of chain or something like that. It doesnt mean that they will change 100%. I didnt wait citroen call. I found DOLZ complete 8mm kit. Just for the kit I paid €500. Plus timing belt kit+oil and filters. 7mm is a kind of time bomb.

[Chiko002]

What do you think?

Warm engine video:


Cold start video:

[Mihael_M]

According to the information from my mechanic: the breaking of the chain (7mm) is the result of a bad oil pump and poor lubrication of the chain and camshafts . It seems to me that the oil pump should also be changed without fail.With a new chain set (8mm) and new camshafts, the problem of poor lubrication of the chain and camshafts has been solved (hopefully).

[Chiko002]

i dont have a recall. so you sugest i shuld replace with new 8 mm kit + oil pump?

[owl]

i dont have a recall. so you sugest i shuld replace with new 8 mm kit + oil pump?

If your oil pump is not working then you should change the oil pump. But when oil pump is not working you are going to know it instanty.

For the changing chain from 7 to 8 no need to change oil pump ( of course in this case I assume oil pump is ok )

[Chiko002]

I don't suspect that there is anything wrong with the pump. No signs. However, I don't know if the pressure is actually lower than Expected and if this is causing poorer lubrication.

Just Occasional rattling in the morning that stops after two minutes.

I have an appointment with the mechanic tomorrow and he will replace it with an 8 mm one. I hope it stays fine and doesn't happen again due to possible poor lubrication.

[owl]

I don't suspect that there is anything wrong with the pump. No signs. However, I don't know if the pressure is actually lower than Expected and if this is causing poorer lubrication.

Just Occasional rattling in the morning that stops after two minutes.

I have an appointment with the mechanic tomorrow and he will replace it with an 8 mm one. I hope it stays fine and doesn't happen again due to possible poor lubrication.

I think the biggest problem in this matter is that PSA set a 30,000 km service interval. 30,000 km is way too much. If you service the car every 10,000 km using high-quality oil, I don’t think you’ll have any problems.

[Mihael_M]

One expert told me that the chain breaks due to poor lubrication and that the pump also needs to be replaced. In the authorized service, they claim that the pump is not the cause of the crack, but bad cam lubrication channels. With the new cams that are in the new housing, those problems are solved (hopefully). According to the authorized service, it is not necessary to change the oil pump.

Oil pressure is easily measured with a diagbox.

[owl]

I don't suspect that there is anything wrong with the pump. No signs. However, I don't know if the pressure is actually lower than Expected and if this is causing poorer lubrication.

Just Occasional rattling in the morning that stops after two minutes.

I have an appointment with the mechanic tomorrow and he will replace it with an 8 mm one. I hope it stays fine and doesn't happen again due to possible poor lubrication.

Any update? Hope you solve the issue.

[Chiko002]

Yesterday i did the update to 8mm chain and the whole camchaft kit. And i also change the other two belts and water pump. i Did about 200 km and it works fine.

[owl]

Great! Hope you are not going to have another noise which comes from waterpump ( I shared it before, you can find it on first page)

[I14R10]

Ok. New 8mm chain in ok. Works fine. I understand.

But what I don't understand...
If your mechanic replaced the old 7 mm with a new 7 mm and a new tensioner earlier this year... Then it should work fine for another 80,000 km + without any problems even with the new 7mm chain. It shouldn't start rattling again so soon.

Maybe your mechanic didn't replace anything the first time?

I thought it would be like that as well. But it seems that putting the new 7mm chain instead of keeping factory original 7mm chain did worse. New 7mm is not original, my mechanic claims original PSA 7mm for replacement is not available and what he put in was non-original replacement.
Also I'm guessing that non-original replacement had a manufacturing error as well, so I really made my life worse by that 7mm replacement at the beginning of the year. I'm pretty sure that if I left the original in, I still wouldn't have issues.

[Paul-R]

If the original 7mm chain had wear then it's highly likely that the 7mm sprockets on the camshafts had wear as well. This wear will not match up to the new chain so you'll have some wear left in the setup and there's the possibility that the cam sprockets will actually cause the new chain to wear faster than you would expect.

[I14R10]

If the original 7mm chain had wear then it's highly likely that the 7mm sprockets on the camshafts had wear as well. This wear will not match up to the new chain so you'll have some wear left in the setup and there's the possibility that the cam sprockets will actually cause the new chain to wear faster than you would expect.

Yes, according to the mechanic, the old 7mm chain had some wear. It wasn't really bad, but it wasn't good either.