Chain tensioner timing

[DMGRS]

Where can I find the tensioner that has been upgraded? I own an R57

[markjay]

The most recent FAI full TC kit is included with it.

Is the tensioner the only part you need? You should be able to find one at the BMW dealership in your area.


I don't see why it's only the tensioner. Can you hear the chain swishing?

[DMGRS]

Yes, but only at around 3000 revs. When I used new oil, it settled, but it comes back when the oil is warm. I'm using the original stock tensioner and would like to upgrade. I have a service appointment in two weeks, so I will get the timing chain done then. I'm doing the tensioner to determine how stretched the chain is. I sought advice because it's hard to find a tensioner with attached dimensions. BMW wants more than £50 and needs to order one, while everyone else offers networking options for £20–£30 and next day.

[stevenkeyte]

I wouldn't recommend installing a non-OE or OEM part from the internet because there's a chance that it comes with the wrong spring or other components.

During the servicing, ensure that an FAI or BMW kit is used, which includes the vanos sprockets, guides, etc., as these are known to function well right away. There may be problems with the sprockets on other brands.

[DMGRS]

I understand your point, but after working in a number of factories, I've noticed that most products, OEM or not, are made in the same factory, using the same machines, and sometimes even on the same day. I always make sure to get a parts warranty in case something goes wrong. I'm hoping this is the problem, but it's mostly just a test to see how stretched the chain is and how much work I'll have to do. If it's not, I'd rather spend £25 now than hundreds of pounds later to find out the problem is severe.