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Everything posted by Johnnyceesred

  1. Hi and thanks for your reply. Did the misfire move from one bank of cylinders to the other bank as mine did? As the engine's now totally dismantled it will give the independant specialist a chance to inspect all tubes connectors etc. Our collective worry is the state of parts of the one crank block half as seen in the first thumbnail on my last post. My hope is that an authoratitive technical specialist from Porsche GB or maybe even Stuttgart if necessary, will come out and view the engine in its current state and give us a verdict on what he/she sees. I also spotted some further gouging
  2. Hope everyone had a good Christmas and Happy New Year to you all. The engine has been dismantled and there are some concerns about the crank block. 1. Some striations have been found on one half of the crank block as if something has gouged out metal from parts of it. 2. There are cracks in the steel elements of the crank block. 3. The profile of the steel elements of the crank block differ between the two halves. I'll attach photos to illustrate the above. We're not sure whether these symptoms are the cause of the original misfire or additional to it. I'll report back on further r
  3. Thanks for the 2 latest posts. The engine's out and in an almost dismantled state. Some evidence has been uncovered regarding corrosion in the connecting rods in the engine block. Will know more and report back (maybe with photos) between Christmas and early January. Happy Christmas to all members and a good New Year. Rgds JCR
  4. B-man and Scouser, Thanks for the replies. I'll keep the thread updated with progress on mine. The main challenges have been to find out what's causing the misfire given we've had 2 different diagnoses from 2 OPCs (1st one was a coil pack failure, hence all 6 coil packs were changed considering the high mileage, and the 2nd was misfire on cylinder 6) and why the misfire moved from one bank of cylinders to the other 2 days after the 2nd PIWIS diagnosis. Rgds JCR
  5. Thanks for your thoughts. The engine's being taken out of the car today as when the sump was inspected a small fragment of "white metal" (Bebbitt Metal) was found and this could be off the Intermediate Shaft Bearing. Won't know for sure until further dismantling. The OPC where I bought the car from did say that they had experieced a misfire moving from one bank of cylinders to the other caused by swarf getting into the tappets. However this was on a brand new car and they wouldn't expect it to happen after 118,000 miles unless it was a component breaking down. So whether the two are linked
  6. I have an ongoing thread on the Porsche Club GB Website. The thread title is "Mis-fire Problem". http://www.porscheclubgbforum.com/tm.asp?m=242384 The first entry is below. I've had some very useful comments from fellow club members and thought it might be useful for reference here and any comments the Renntech forum members might have. The latest entry on the thread confirms that the engine is being taken out for deeper level investigation and hopefully a fix. Mis-fire problem. I would be grateful if anyone one would comment and/or give me any advice regarding the problem below. Apol
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