Change water pump on 928S1

  • Would first remove all four V-belts and run the engine again.

    Is the ZLP still in operation?

    This post has been automatically translated.

    Un saludo

    Schocki :khat:

    1987 944 Turbo, R.I.P. :pop:
    1991 944 S2, Kobaltblau, verkauft :kbye:
    1972 911 T Targa, Geminiblau aka "Shelley" k:ok:
    1992 928 GTS, Amazonasgrün aka "Das Phantom" :kyippie:

    It's not the speed that kills you, it's the sudden stop k:secret: .

  • Thanks Schocki,

    well, but at the moment nothing more is to be heard, then the V-belt probably brings at the moment also nothing, unless that noise occurs again.

    Another suspicion I have is that maybe a piston ring or the oil scraper ring on one of the cylinders is broken.

    I'll have to check the compression, but if it's a broken oil scraper ring, it won't do any good, unless one of the valves is damaged.

    Greetings, Rainer

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    Porsche 928 S1 (Baujahr 79) EZ 03.1980 4,6ltr./300PS mit K-Jetronik,

    3Gang Automatik

  • Addendum:

    The ZLP is empty, meaning that the Pertinax or Durcoto wings are all out.

    This post has been automatically translated.

    Porsche 928 S1 (Baujahr 79) EZ 03.1980 4,6ltr./300PS mit K-Jetronik,

    3Gang Automatik

  • Addendum:

    The ZLP is empty, i.e. the Pertinax or Durcoto blades are all out.

    But that does not mean that the bearing must still be ok. To the noise: there can also be quite simply the starter did not go completely zürück, had that with the GTS when I had started the first time. If the noise is now gone then something must have changed. I would not look there now once further but drive. To the Wapu: if the defective you have very quickly a problem with the temperature.

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    Gruß Ludger

    Rettet die Grotten, weg mit den Schrottpressen

    928 GTS Kompressor

    (928 S4 Bj 89 Automatik) vekauft
    928 S2 Bj 85 Automatik Umbau DP - Motorsport
    928 S2 bj 85 Schaltgetriebe

  • I agree with you Schnüffelstueck, there are several

    possibilities that could have

    could have caused the noise.

    Since I don't have to use the car on a daily basis, I'm going to run the engine from time to time for now, timed with longer and longer run times, and monitor the temperature.

    I will definitely keep reporting on the matter.

    LG, Rainer

    This post has been automatically translated.

    Porsche 928 S1 (Baujahr 79) EZ 03.1980 4,6ltr./300PS mit K-Jetronik,

    3Gang Automatik

    Edited once, last by Cologne_ 928 (July 18, 2023 at 11:06 AM).

  • I advise against regular idling orgies. It's still good for the engine. Our GT doesn't like that at all.

    This post has been automatically translated.

    Un saludo

    Schocki :khat:

    1987 944 Turbo, R.I.P. :pop:
    1991 944 S2, Kobaltblau, verkauft :kbye:
    1972 911 T Targa, Geminiblau aka "Shelley" k:ok:
    1992 928 GTS, Amazonasgrün aka "Das Phantom" :kyippie:

    It's not the speed that kills you, it's the sudden stop k:secret: .

  • Hello Schocki,

    that is correct, but to undertake a somewhat longer journey, I lack the courage.

    Or is it possible to drive from my rented garage about 5km to home without the engine overheating, of course, set the case that the water pump does not deliver.

    This post has been automatically translated.

    Porsche 928 S1 (Baujahr 79) EZ 03.1980 4,6ltr./300PS mit K-Jetronik,

    3Gang Automatik

  • Do not quite understand the problem. If it gets too warm while driving, then stop and turn the engine off immediately.

    If the lower radiator hose (from the radiator to the angled aluminum flange in front of the thermostat housing is not warm), then you have a circulation problem.

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    Un saludo

    Schocki :khat:

    1987 944 Turbo, R.I.P. :pop:
    1991 944 S2, Kobaltblau, verkauft :kbye:
    1972 911 T Targa, Geminiblau aka "Shelley" k:ok:
    1992 928 GTS, Amazonasgrün aka "Das Phantom" :kyippie:

    It's not the speed that kills you, it's the sudden stop k:secret: .

  • Is no problem Schocki,

    only maybe a little exaggerated caution from me, but I'll take a ride and then see.

    See you then and thanks for the courage.

    This post has been automatically translated.

    Porsche 928 S1 (Baujahr 79) EZ 03.1980 4,6ltr./300PS mit K-Jetronik,

    3Gang Automatik