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Thread: M20 Timing belt question

  1. #1
    Join Date
    Sep 2007
    Location
    Michigan
    Posts
    335

    Default M20 Timing belt question

    My 325isa was just about to get it's timing belt and water pump replacement repair at 120k miles. I believe these are the same motors as a 525, therefore not totally OT. The car stops running at 20mph and there are timing belt teeth peeking out of the back of the black plastic cover by the crank pulley.
    Here's the question...
    What is the correct procedure to diagnose this. I understand these to be interference motors and that quite possibly the valves got bent. There was also a big puddle of oil on the flatbed when the car was lowered off. It came from the back of the motor and may be a different issue hopefully. Do I pull the head in the car or pull the whole motor? Any write up links will be appreciated. I posted this question on an e30 site as well but they get weird and flaming way too fast with not much help.

    1990 535im 421,000 miles, 1987 325is, 1989 325is, 1990 m3, 1991 318is, 2001 X5 3.0

  2. #2
    Join Date
    Oct 2004
    Location
    Honolulu
    Posts
    3,105

    Default

    You'll probably need to start looking for a replacement motor from a e30 or 89 to 90 e34


    Vee ave vays of dealing vid your kind...........

  3. #3
    Join Date
    Feb 2006
    Location
    Oldham, England
    Posts
    3,078

    Default

    Think first job has got to be an inspection to find out where that oil came from
    http://www.dtmpower.net/forum/new-en...-s-o-pics.html

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