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On 6 Nov 2001, at 18:23, Dave Hall wrote: > Single measurements might not be that reliable I guess, but it's in the same > 'ball-park'. Maybe they were measured after 10,000 miles, in which case > further hardening may have occurred. After I had that conversation with Gene Berg I took a couple of lifters to work where the tool and die shop had a hardness tester. I measured the hardness of a worn plain brown wrapper Made in W. Germany lifter and an old OE lifter. What I remember for sure is that both measured out exactly as Gene said they would: Neither showed any increase in hardness at that time. The idea of work hardening had not occurred to me at that time, but I know I would have remembered if my measurements had all come out a bit higher than Gene's numbers. - Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe