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1991 BMW 318i belt question

Discussion in 'DIY (Do-It-Yourself)' started by kxlara, Aug 22, 2015.

    • Member

    kxlara

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    I have a 7/90 production 318i sedan with the M42 engine, and am having a hard time getting the new A/C belt on. Most of the diagrams that I have found have a tensioner on this engine, but mine does not, so my question is... is the 13x890 belt the correct size if you have an engine without the tensioner?

    Thanks!!!
    Chris
    • Member

    MGarrison

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    Realoem.com is showing 12.5x885, so presumably 13x890 would work as long as it's not too wide for the pulley and compressor.

    http://www.realoem.com/bmw/enUS/showparts?id=AF93-USA-07-1990-E30-BMW-318is&diagId=64_0552

    If your support bracket looks like the one pictured in the link above, kinda looks to me like bolt 9 goes thru a vertical slot to bracket 2, and if you loosen up 9 (maybe 10 also?), that would allow the pulley (3) to slide up and give you the slack needed for belt removal and installation.

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