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996Targa

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Everything posted by 996Targa

  1. Thanks for the condolences. I'm a new Porsche owner only having owned this car for a little over a year so this is a painful start. I forgot to include the piston picture so here it is. My mechanic, who is very good and reputable, says he can repair the piston and replace the head for a fix. No damage to the cylinder wall. The only risk he says is that if the top piston ring were pinched it would burn oil and smoke. But with the piston in the lowest position where the cylinder is tapered out he was able to move the piston side-to-side and see the ring and it appears to me moving freely. He's going to do a "leak down" test once the new head is installed to check it. Fingers crossed. My mechanic has also never seen this before in many years of working on Porsches and building/re-building racing engines. The only reason he can come up with is a faulty head from manufacturing. Somehow the seat ring didn't get the proper seal when installed into the head. View of damaged piston.. http://tinypic.com/r/1zbh1c9/7
  2. My 03 996 has had a major failure and I thought I'd ask if anyone has seen anything like this happen before. Under very low idle and speed I heard a metallic "clang" noise from the motor and then it died and would not restart. Had it towed to the shop where they had to drop the motor and pull off the 1-3 head to find the problem. One of the valve seat rings on the #3 cylinder popped out and caused damage to the head and top of the piston. Here you can see the missing valve seat ring and the damage done to the head when it came out. I had him remove the other valve for comparison. http://tinypic.com/r/2hf47pv/7 Different angle... http://tinypic.com/view.php?pic=2cdg4qr&s=7 Top View... http://tinypic.com/view.php?pic=vcxmk6&s=7 Other side of the head. Cylinder 3 is on the right. No issue there. http://tinypic.com/view.php?pic=2j1va09&s=7
  3. Anyone know what I could expect to pay a shop to perform this same job on my 2003 996 Targa?
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