Jump to content
×
×

 

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must login to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Ahsai

Contributing Members
  • Content count

    2,326
  • Donations

    $50.00 
  • Joined

  • Last visited

  • Days Won

    49

Ahsai last won the day on July 30

Ahsai had the most liked content!

1 Follower

About Ahsai

  • Rank
    Contributing Member

Contact Methods

  • Website URL
    http://
  • ICQ
    0

Profile Information

  • Gender
    Male

Profile Fields

  • From
    Earth
  • Porsche Club
    No
  • Present cars
    2003 996 Coupe

Recent Profile Visitors

1,594 profile views
  1. Cranks but no start -Misfire

    BTW, super easy to verify CORRECT TIMING with any TDC tool. Start with TDC for cyl #1 (like your 1st column). It's actually TDC overlap (as opposed to compression) for cyl #1. Put a TDC tool in cyl #3. Rotate crank 120 degree, cyl #3 should be at TDC (compression). Then put the TDC tool in cyl #5, rotate crank 120 degree, cyl #5 should be at TDC (compression). Repeat the above for cyl #1, #6, #2, #4. Firing order 1-6-2-4-3-5 With your current TIMING, I expect #1&#4 to hit TDC compression simultaneously. Similarly for #2&#5, #3&#6.
  2. Cranks but no start -Misfire

    If your timing was correct, you start at column 1 reading, rotate the crank 360, you should see column 2 on bank 2. However, since your columns 1&2 were taken at the SAME TDC without crank rotation, you have the classic problem of failing to turn the crank 360 before timing (and installing the cams) on the second bank. The engine will run on 3 cylinders only. This issue should not have caused valves damage though but I'm not sure why the engine is stiff when it's close to TDC (with the spark plugs removed).
  3. Cranks but no start -Misfire

    Yes, that whistle works very well. If the problem is truly the 360 degrees offset, correct either bank should work. Btw, I thought you got your missing variocam solenoid spring fixed sometime ago and everything worked well afterwards? What happened?
  4. Glad you got it sorted. It's a great demo of the voltage drop test.
  5. Cranks but no start -Misfire

    Yup, bank 1 and bank 2 should be offset by 360 degrees crank angle and you should only be able to fit the cam lock tool to ONE of the banks at a time. Looks like you could have fit the tool in bth banks above (barring slight misaligment). To further convince yourself, I suggest you remove all the spark plugs and check compression of each cylinder one by one following the firing order. If your timing is correct, you should get compression of each cylinder in the correct order. With your existing timing, I believe you won't (two opposing cylinders will compress simultaneously).
  6. The 0.7v voltage drop between the alt output and +ve term post in the engine bay points to the y cable. I had one turned bad after a yr of installation so it's not impossible.
  7. Thanks. I was thinking this could be a good confirmation and easy diagnosis for others in thr future.
  8. Great, you got a self-healing 996! :)
  9. Glad you've found your problem. Just curious when your a/c doesn't work, can you try if your wipers work? They get power from the same circuit after the igniti switch.
  10. Check fuses C7 and D6 and relay #18 inside the left kick panel. Maybe your a/c compressor clutch is toast.
  11. Yes, you got enough refrigerant for sure so that's not the problem. Does the a/c clutch click and engage at all when you turn on the a/c?
  12. John is right. However, you can still check the static pressure when the engine is off. It should be ~70-80PSIG on either low/high side (temperature dependent). If you have some very low numbers, your pressure switch will prevent the compressor from being activated.
  13. Cranks but no start -Misfire

    A few things come to mind. They may not be coherent... - Checked fuses C1-C4 and E1? - coolant temp reading correct? - have you tried e-gas calibration? - have you checked for sparks when the engine doesn't fire up? - retiming of bank 1...360 degrees offset of bank 2 was ensured? - No special tricks in Durametric AFAIK during staring - Perhaps worthwhile to check for compression in firing order - Have you tried with no MAF? - What's the MAF voltage reading with key ON engine OFF? (should be 1.1v or so)
  14. In that case, the strongest suspects are the starter y-cable and the engine ground strap (behind the right rear wheel on the cam cover). To diagnose the cables, this may help
  15. A genuine water pump from Sunset is $323 + shipping https://www.sunsetporscheparts.com/oem-parts/porsche-water-pump-99710601106/?c=Zz1jb29saW5nLXN5c3RlbSZzPXdhdGVyLXB1bXAmaT02OTMzNTgwNSZyPTEmYT1wb3JzY2hlJm89OTExJnk9MjAwNiZ0PWNhcnJlcmEtcyZlPTMtOGwtaDYtZ2Fz I believe the pump is made by Pierburg so that may not be a bad option.
×