I just read this on a Jaguar board. Yes, all of this talk about Jags has sparked my neurosis and I'm considering buying an XK8, but, this aside, in the 3.2 and 4.0 litre engines before 2000, Jaguar employed the use of Nikasil to prevent the wear of aluminum cylindar walls. As has now become apparent, Nikasil deteriorates in the presence of Sulfer. So, low quality fuel, combined with sort trips causes the Nikasil to break down and, eventually, the compression drops causing serious preformance and function problems. The only way to fix the problem is to replace the block and, usually, the pistons. So, 3.2 and 4.0 litre Jaguar engines made prior to 2000 are to be avoided. Cars with the affected engines will have a 6-digit figure at the end of the VIN, whereas cars with steel liners will have a 5-digit figure at the end of the VIN, preceeded by a letter (F or G for the XJ, and A for the XK).

So, if anyone else has Jag-lust, this is something good to look for. I wonder if it was a problem with Nikasil that lead to the failure of many early Porsche M96 (996 and Boster) engines and pre-1996 BMW V8 engines??

Anyway, FYI. Thanks to Jag-lovers dot org for this information.

posted by 207.92.198...

• Answer to curiousity, W.S., Wed, 31 May 2006 12:51:39
  • My answer:, Jeff Cullen, Mon, 5 Jun 2006 22:07:54
  • Some More Answers, W.S., Fri, 2 Jun 2006 13:04:32
    • Re: Some More Answers, 2garfields, Mon, 5 Jun 2006 21:24:56
    • The $6,000 question... (long and rambling), CWilson, Sun, 4 Jun 2006 16:37:46
      • This just in..., Siegrisd, Thu, 15 Jun 2006 13:25:35 <-- Viewing This Message
      • Indeed! Very nicely done..., Siegrisd, Wed, 14 Jun 2006 10:14:54
      • Excellently put..., Justin VanAbrahams , Mon, 5 Jun 2006 18:06:17
    • Don't get the Quattro Coupe...., Mike Lynch , Sun, 4 Jun 2006 16:15:48
      • Re: Don't get the Quattro Coupe...., KenManiac , Thu, 8 Jun 2006 20:54:22
    • Don't get the Jag, turrbo , Sat, 3 Jun 2006 18:46:24
  • Re: Answer to curiousity, W.S., Thu, 1 Jun 2006 17:50:58
    • Hmmm, Justin VanAbrahams , Fri, 2 Jun 2006 10:08:33
      • Re: Hmmm, Siegrisd, Sun, 18 Jun 2006 21:54:18
  • Re: Answer to curiousity, Justin VanAbrahams , Thu, 1 Jun 2006 15:24:00
    • I was wondering the same thing..., CWilson, Thu, 1 Jun 2006 18:17:04
  • Re: Answer to curiousity, jp, Thu, 1 Jun 2006 11:23:13
  • What about a '78-82 911SC?, JimN, Wed, 31 May 2006 13:01:23
    • Great looking 944, Scaniac, Wed, 31 May 2006 16:16:19
      • Some tractors better.., Mike Lynch , Wed, 31 May 2006 17:23:14
        • 968....Nothing like a 924/944/968 to sit in..., Mike Lynch , Sat, 3 Jun 2006 11:43:42
          • Indeed... beautiful!, Siegrisd, Wed, 14 Jun 2006 09:14:10
        • Porsche got its start making tractors., JimN, Thu, 1 Jun 2006 08:46:28

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• Prev by Date: Second hand experience..., Aaron Gilbert, Thu, 15 Jun 2006 12:42:40
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