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Stronger chains, weak link....
Posted by Mike Lynch

(# 81) (more from Mike Lynch) on Tue, 9 Nov 2010 15:09:36
In Reply to: a mysterious disease striking down old cars, JohnA

, Fri, 5 Nov 2010 19:38:58

As "modern" engines don't wear out in the 100k miles that old cast iron engines did, but instead go 200,000-300,000 miles before showing "wear" I'm not surprised that the weak link has shifted from the piston/rings/valves of yore to the cam's and lifters.

Certainly this "virulent new disease" must have some immunity in regards to Saab or we would have heard about it on Saabnet.

A flat cam killed my 1986 Alfa Spider, but it wasn't terminal. A new cam and lifters made her good as new.

It seems to me that worn lifters and cams are never going to make an engine self destruct, just run poorly and need repair, unlike a broken cam belt or chain that will cause piston to valve interference in many engines.

Posts in this Thread:

a mysterious disease striking down old cars, JohnA , Fri, 5 Nov 2010 19:38:58
- Stronger chains, weak link...., Mike Lynch , Tue, 9 Nov 2010 15:09:36
- Type of lifters in Saab B204/205/234/235 engines?, Tim, Sun, 7 Nov 2010 06:03:44
- Re: a mysterious disease striking down old cars, turbocon86, Sat, 6 Nov 2010 06:08:26
- ZDDP additives, DougM , Sat, 6 Nov 2010 04:36:26
- Re: Saab 9K oil, BobS, Fri, 5 Nov 2010 22:54:45
  - So I'm guessing that, Noel , Sat, 6 Nov 2010 07:48:12
    - Re: So I'm guessing that, BobS, Sat, 6 Nov 2010 14:35:32
      - May be a tad over-reactive., Noel , Sun, 7 Nov 2010 07:20:46
        Re: May be a tad over-reactive., LesH , Sun, 7 Nov 2010 07:42:45
        Re: May be a tad over-reactive., Tim, Sun, 7 Nov 2010 13:20:08
        Mobil 1 0-40 in Boston, Slug , Mon, 15 Nov 2010 15:22:10
        0W-40 Availability, BlaaSaab, Wed, 10 Nov 2010 19:16:56
        Re: May be a tad over-reactive., Simon S, Mon, 8 Nov 2010 10:08:43
        30 vs 40, LesH , Sun, 7 Nov 2010 19:02:34
        Mobil 1 5W-40, IanC , Sun, 7 Nov 2010 18:56:52
        I know this, Les. I also know that, Noel , Sun, 7 Nov 2010 11:22:38
  - Why I use a diesel engine rated oil in my 9-5, MI-Roger , Sat, 6 Nov 2010 06:09:12
    - Re: Why I use a diesel engine rated oil in my 9-5, BobS, Sun, 7 Nov 2010 08:40:31
  - Re: Saab 9K oil, pete, Sat, 6 Nov 2010 05:19:58

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