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JFP in PA

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Everything posted by JFP in PA

  1. You might want to contact Jake Raby at Flat Six Innovations, he has actually published a lot of engine internal specs for Porsche's that cannot be found anywhere else.
  2. Unfortunately, Porsche has become more parsimonious with time when it comes to engine spec minutia as they don't even want their dealer techs working inside these engines, and they are not the only OEM that behaves in this manner.
  3. To my knowledge, Porsche did not use that measurement as spec on these engines. Instead, they had specs for overall valve length from tip to tip as 110.1 +/- 0.1MM on the intakes and 109+/- 0.1MM on the exhausts, and installed valve spring heights on valves that passed the overall spec at 36.7 +/- 0.3MM intakes and 35.7 +/- 0.3MM exhausts as measured from the spring seat to the bottom of the spring retainer.
  4. Welcome to RennTech All Porsche literature is protected intellectual property of Porsche: as such, we do not provide or condone the copying or posting of such information. That said, you should be able to obtain a copy directly from Porsche, either at your dealer or through their website.
  5. Check the voltage drop across your primary battery cables, it may just be an internal resistance issue, which is not uncommon.
  6. The immobilizer functions by shutting off power to both the fuel system and the ignition.
  7. Welcome to RennTech One of the functions of the immobilizer is to shut off the fuel system, so if you are getting intermittent codes for the unit, I'd start there. Your voltage reading also is questionable, you should be seeing around 12V.
  8. Welcome to RennTech Porsche discontinued printed service manual more than ten years ago, so copies are hard to come by. The only decent and current "online" manual I know of is Porsches PIWIS TSI system, which is pricey. A decent print manual is the Bentley Boxster manual. Good luck.
  9. The AOS in the sump are an entirely different system design than the external one that controls the sump vacuum levels, and does not use a membrane. I can't honestly say that I have ever heard of one of the internal AOS units failing. If you have already replaced the external unit, and it has failed, I would be willing to bet it was an aftermarket unit (often sold an OEM style unit) which are well known for incredibly poor build quality and short life spans. Many shops, mine included, only use the factory piece.
  10. Most likely you broke the cable ends or the drive that lowers the top. You are going to need to manually get the rear panel open and access what is broken. Good luck.
  11. The best thing he could do is to have the car scanned with a Porsche scan tool, it will show the source of the last 10 alarm faults.
  12. The car’ s dash has a radio theft alarm circuit built into where the radio sits; left unconnected it triggered the alarm to beep.
  13. No, you are looking for an organic reason the engine is overheating, so even though it is not leaking, a pressure test would reveal the presence of mechanical flaws such as cracks, which the early Boxsters were famous for having, and which caused overheating. I would also be testing the atmosphere above the coolant in the tank for the presence of combustion by products, another indication of possible cracking. You should also have the car scanned with a proper Porsche scan tool to evaluate the actual coolant temperature vs. what the dash gauge displays. These temperature displays are well known for being both inaccurate and non linear.
  14. Pressure test the entire cooling system.
  15. If you look two post up, Loren has already listed the probable faults.
  16. If you read the post from 2009 directly above yours, he tells you what he did...………………………………..
  17. A lean condition does not necessarily mean you have a bad sensor, more likely you have a small vacuum leak or an overly lean cylinder somewhere on that bank, leading to the lean conditions the sensor behind the cat is seeing. A smoke test and reading the spark plug colors should help sort out the problem source.
  18. Worked for me, but perhaps you need to be a contributing member to see it...………...
  19. Audi and VW use them. Amazon was selling them at one point.
  20. Put the car on an alignment rack, it one is bent, the car will be way out of alignment, and which way it is out will tell you were it is.
  21. I find your comment that oil cooler leaks are common rather odd as we have only seen perhaps six leak over decades of working on hundreds of these cars, and most of those leaks were on Boxsters. What kind of leakage are you experiencing? Coolant or oil? Intermix?
  22. Could be, but you need to confirm the lean misfire theory first by looking at the plugs.
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