Any advice on changing the belts?

[PabloRock]

Would be the first time attempting this job. Never really took out that front cowling to see what's down there. Started it up and heard a whacking and it was a piece of a belt splitting. I did read Timm's, but want to see if there is anything else to think about. Any suggestions or a good full write up would be great. Also part numbers as well would be helpful (want to replace all the belts just because they are ancient [probably original]). The only humorous part is that I actually started to look into this yesterday because I knew the belts were old and needed be replace (only 65k on the clock). But now I have to get right on it.
Thanks. Paul.

[shogun]

The belt p/n's check in the ETK based on your VIN because there are many options, for example Belt drive for water pump/climate compressor (provided you did'nt change a part)
1281733708 −Info Only applies to Pulley 11511731905 5K X 1155
Only applies to additional alternator
11281736972 5K X 1190
11281736999 5K X 1180

[PabloRock]

Yes, I was searching and getting a bit confused on the different part numbers. I haven't changed anything (and owned the car for over 25 years), so everything is probably original. It's a basic 1991 850.

[shogun]

any noise from tensioner pulleys? https://www.bimmerforums.com/forum/s...-a-850i-or-M70
idler pulley INA bearings etc info https://www.bimmerforums.com/forum/s...ng-replacement

[PabloRock]

No, no noise from the pullies. (is there something wrong with the forum? It keeps telling my I'm not allowed to post or just doesn't show the posts).

[shogun]

yes, forum has software hick ups, the admin is working on these problems since days https://www.bimmerforums.com/forum/s...7#post31015937
Maybe someone with a US 1991 850 tells you which belts you need exactly, I had enough probs with my E32 750 in hot climate version with correct belt sizes. Best is you post a list of parts you found in ETK based on the VIN and someone can double check it.

[henryc]

PabloRock - I recently replaced the belts on my 1991 850i. I have sent a PM to you.

/Henry

[PabloRock]

Hi Henry. Are you sure on the 6PK1080? FCP doesn't list it as fitting.

[Timm]

Although mine is an 840ci, I remove the belts in this how-to:



And change the main tensioner in this one: