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grown

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About grown

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  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    996
  1. variocam solenoid seals and spark plug tubes is a good (easy) place to start. Do both sides. Doing these seals with the spark plugs is no bid deal. Take the mufflers off!
  2. But this doesn't help -- did you listen to the sound clip? Do you realize you're posting in a 996 forum? The Cayman doesn't even use the same engine. Not only are you (and White987s) not contributing to the topic but you're sabotaging those who are. So thanks but no thanks.
  3. Getting back on topic... what makes you think the noise in post #1 is bore scoring? I'm not ruling out the possibility but I've read the same threads you have and I haven't been able to make the connection.
  4. ​ :rolleyes: Thanks. IMS bearing too cliche? Or maybe you could explain your 'going' a little more.
  5. My car makes a noise very similar to what was documented in the first post. It's also a 99 c2 with about 135k km. It will only happen at first cold start of the day (A/C off) and doesn't kick in for ~ 5 seconds after engine on. I'd describe it as a rattle or a knock -- and agree with Ahasi that it doesn't sound like lifter tick. It doesn't increase with rpm and will disappear slowly over the first minute of running. I've always let the car build up a little heat in the oil before backing it off the driveway. Outside temperature doesn't seem to affect things either. ​ After stumbling across this thread I spent a little time trying to hunt the source of the noise. I removed the belt and started the car cold, the noise was much reduced. I'm not sure if it was just my heightened senses in the moment but I thought I still heard a faint knocking. My water pump was replaced within the last year and was tight and free spinning. The idler pulleys are all tight and medium-to-free spinning. The alternator, P/S and A/C seemed fine too. ​ ​Car will be on the lift in a couple months for a clutch/etc and may delve deeper into this issue at that point. ​ ​I might try the driveway experiment again in a couple weeks but really need to get a new trunk strut first. Stupid struts.
  6. Not sure if the OP got the idea from porken or not but these resemble his Porsche lift bars. A google search for "porken lift bars" will provide some more information. Perhaps he can provide more information for you. I'm in no way affiliated with porken but do like the idea of lift bars a lot.
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