1996 E36 318ti Starter Motor problem(FIXED)

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  1. 1996 E36 318ti Starter Motor problem(FIXED) 
    #1
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    GordonJ's Car Details
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    When I start my engine from cold, the engine throws over and starts first time, no problems.

    However, once the car is hot, when I try to start the engine, the starter is spinning, but seems to not be engaging with the engine, so you can hear the motor working, but the engine is (oops!) NOT throwing over.

    My initial thoughts were that it was just a knackered starter motor, but that doesn't really explain why it would work when the engine is cold but be very troublesome when hot.

    I'm getting a new clutch next week, and am planning to get a new starter while we're in there. Is there anything else it could be, or is it just a knackered starter?
    Last edited by GordonJ; 09-08-2009 at 02:18.
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    Sounds like the bendix on the end of the starter may need cleaning Gordon, if you want to save some money then you could always give this a try before getting a new starter.

    Otherwise it will require a new starter, try and get a THREADED hole starter, they are easier to fit due to just being bolted on.

    Early starters had unthreaded holes, they were nut and bolted on. A pain on a 6 cylinder.
     
     

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    GordonJ (18-07-2009)

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    The new clutch hasn't happened yet, due to the mechanic being too busy, but as it's still operational, I'm gonna leave it for now. But I need to get the starter motor fixed or replaced, as the problem means I can't really use the car properly and reliably at the moment.

    Is it a difficult job to remove the starter motor?
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    could it be the solonoid sticking? if the motor is spinning but not engaging? or am i miss reading? either way if ur bored remove it clean it and refit it if ur clutch is pretty shot imagine how much clutch dust has found its way to ur lovely starter? could be a simple case of cleaning it up at home...worth a try b4 you pay out...worse case it costs u some wasted time?


    The monkeys keep making me drift......
     
     

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    GordonJ (30-07-2009)

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    Cheers Louis, I am going to try that before I buy a new one.

    Can you think of any reason why it would fire up first time okay when the engine is cold, but is a major PITA when the engine is hot? Why would engine temperature affect it if it was just the starter motor?
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    I would also take the starter off and clean the shaft and bendix gear as after constant use grease and dirt can accumulate causing the gear to stick. Heat can affect the viscosity of this material and give the symptoms you describe.
    It could also be faulty windings also affected by heat due to the thermal expansion of both iron and copper.
     
     

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    GordonJ (01-08-2009)

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    Quote Originally Posted by GordonJ View Post
    Is it a difficult job to remove the starter motor?
    Not as nasty as a 6 cylinder, but it's still not nice, especially if the starter motor has got seized on the locating dowel

    If you replace it then get the later style starter motor with threaded holes.


    You have two choices in replacing it, do it from underneath by dropping the rear of the gearbox down onto a axle stand/jack, makes access to the starter motor bolts easier. This is the way I'd do it.

    Otherwise remove the battery and battery tray, dip stick, plastic tray from under wiper grill, air box to inlet manifold hose, upper manifold and fold it over on the right of the engine bay. Remove both fuel pipes going to the rail and then unbolt lower manifold. Personally this is long winded and unnecessary unless you are really struggling with the 1st option.
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    GordonJ (02-08-2009)

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    Thanks for all the help and advice, guys.

    Mucho obrigado.
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    Quote Originally Posted by louis1978uk View Post
    could it be the solonoid sticking? if the motor is spinning but not engaging? or am i miss reading? either way if ur bored remove it clean it and refit it if ur clutch is pretty shot imagine how much clutch dust has found its way to ur lovely starter? could be a simple case of cleaning it up at home...worth a try b4 you pay out...worse case it costs u some wasted time?
    You were right on the money Louis. The starter was clogged up with clutch dust. Very well done and thanks again.

    Still can't figure out why it worked when the engine was cold but not when hot, but hey-ho, all fixed now.
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    louis1978uk (10-08-2009),Ronnie (09-08-2009)

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    GLAD ur fixed m8ty good work


    The monkeys keep making me drift......
     
     

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