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'95 530i 8 cyl. thermo. housing will not seal.

Discussion in 'E34 (1989-1995)' started by ragnuoy, Sep 27, 2013.

    • Member

    ragnuoy

    Post Count: 5
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    All new parts - water pump, thermostat and housing, "O" ring. Have tried 4 times and cannot get a seal. Any suggestions? Thanks so much. Bob Young (ragnuoy@yahoo.com)
    • Member
    • Technical Service Advisor

    Terry Sayther

    Post Count: 107
    Likes Received:14
    First of all, what's leaking? Pin it down---pressure testing, getting a mirror and light to help. Then once you know what is leaking, address the leak. Dirt, corrosion, damaged seals, etc---it will be something along those lines.
    • Member
    • Technical Service Advisor

    charlson89

    Post Count: 1,138
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    Also make sure the sealing surfaces on the engine are not pitted I have ran into this on some of the older cars.

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