I think the point is for a temperature difference between the bolt and what it's screwed into. Heat expands the block and the stud, and the 'freeze' is supposed to cool the stud to contract it, supposedly increasing the space between the stud and the block. Jim --- "checksix3" <jetjock11@xxxxxxxx> wrote: >>Heat the area around the stud and cool<< Where the heck did this crazy method come from? Just heat the area, don't cool it. There is no fastener that won't come out with heat but the block and manifold have great thermal mass and it takes a lot of energy to bring it up to temp. A whimpy propane toruch may not do it unless you leave it on there a long time. The reason this works is that when you heat a fastener the entire assembly expands, not just the stud. The nut, bolt and the space between them expand together. Every mechanical engineer is taught this principle in the first year of college. Cooling it will be counterproductive. To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! Yahoo! Groups Sponsor <http://rd.yahoo.com/M=251812.3170658.4537139.1261774/D=egroupweb/S=170512 6215:HM/A=1564416/R=0/SIG=11ti81skc/*http://www.netflix.com/Default?mqso=6 0164797&partid=3170658> <http://us.adserver.yahoo.com/l?M=251812.3170658.4537139.1261774/D=egroupm ail/S=:HM/A=1564416/rand=193620955> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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