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Overtightened timing belt on BMW E30 M40 ?
Posted: Sat Dec 04, 2021 11:59 am
by elvirbgd
Is it possible that timing belt is overtightened ? Last week mechanic replace timing belt on my E30.
Here is the video :
https://youtube.com/shorts/G16T5Puus9c?feature=share
Re: Overtightened timing belt on BMW E30 M40 ?
Posted: Sat Dec 04, 2021 9:15 pm
by onthames
Might be too tight or too loose. I'd take it back to them they should adjust that for free
Re: Overtightened timing belt on BMW E30 M40 ?
Posted: Sat Dec 04, 2021 9:50 pm
by rix313
They aren’t meant to be really tight no.
Re: Overtightened timing belt on BMW E30 M40 ?
Posted: Sun Dec 05, 2021 4:37 pm
by elvirbgd
Problem solved! Adjusting pulley was overtightened. But on M40 engine there is a little hole on timing belt cover and you can through her adjust pulley/timing belt with hex key, without remove up/down timing belt cover casing.
It is cover/hole number 13 on link,
http://bmwfans.info/parts-catalog/E30-4 ... el_casing/