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Not running on all cylinders

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    Not running on all cylinders

    I have an 87 325E that I bought off craigslist as a project and its been sat for close to 7 years. It runs but cylinder number 5 isn't running, it's getting spark but it doesn't run. Any ideas?

    #2
    To run it must have air, fuel, and spark. Check your fuel injector going into cyl 5 then check the compression number for that cylinder.

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      #3
      The compression on cylinder 5 is good, I'm think the injector is suspect. I was running it and I couldn't feel it ticking when it was running, the leads to the injector have continuity and I measured 6 ohms off the injector itself.

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        #4
        Pull the valve cover to check and see if the one of the #5 rockers are broken.
        1988 E30 335i - 1987 E30 327i - 1987 E30 327iS Pickup - 1973 2002 Project

        Visit www.BimmerHeads.com for all of your 12 valve needs!

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          #5
          Not a bad idea, I'll check tomorrow when I have sun light and when it isn't raining.

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            #6
            Definitely could also be a clogged injector from sitting.
            BimmerHeads
            Classic BMW Specialists
            Santa Clarita, CA

            www.BimmerHeads.com

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