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markdav

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Everything posted by markdav

  1. markdav
    Hi Christopher Thanks again for your attention. (BTW, nice result at the weekend! We get very limited coverage of the Premier League living here in Seattle...). I digress! I can confirm that the whole pulley stops when the aircon is off. I'll open her up again tonight and take a short video. I notice 3 bolts at the front of the pulley - is it worth taking those off and checking behind the pulley? I have searched RennTech and PPBB and this fault does seem to be unique. Thanks again, Mark.
  2. markdav
    Thanks. In my case, the pulley itself stops spinning - the rubber belt is travelling over a stalled pulley. I first noticed this because my engine revs would momentarily drop when the aircon was switched off (normally assume a slight increase in revs since the workload has been removed until the idle adjustment kicks in). Sounds like my clutch is sticking between being in and out and is trapping the pulley. Are these servicable or would a touch of oil help? Hate to pay $900 for a new unit that otherwise works perfectly.
  3. markdav
    Hi, Is it normal for the aircon compressor pump to stop turning when the aircon is off? During the first few seconds after starting or if I switch the aircon off, the belt travels round all the pulleys correctly but the aircon pump pulley does not turn. As soon as I turn the aircon on again, it starts to move. No problems with cooling, heating etc. This just does not seem right (belt wear, friction heat, etc would result). I heard that the aircon has a clutch mechanism built in - maybe this is faulty? Car details - 2000 Boxster 2.7, USA, manual transmission. Thanks, Mark.
  4. markdav
    Thanks! That makes sense - maybe the starter drive was not disengaging? Did you need it replacing or just maintenance (lube?).
  5. markdav
    Did this ever get resolved? My car started to do this. 1 second of screeching just as the car starts up from cold (usually overnight). Sound appears to be coming from behind the driver position. Car is USA, 2000 Boxster (not 'S'), 41K miles, manual.
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