You got to it before I did. I have used this same method to install U-joints on a drive shaft. I put the yoke in the oven and the U-joint in the freezer. After a few minutes they slid together with the greatest of ease. Greg -----Original Message----- From: ihaveanaccount@xxxxxxxx [mailto:ihaveanaccount@xxxxxxxx] Sent: Monday, June 30, 2003 10:45 PM To: DMCForum@xxxxxxxxxxxxxxx Subject: Re: [DMCForum] Re: Worst Case Scenario: The DeLorean Edition 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. Yahoo! Groups Sponsor <http://rd.yahoo.com/M=251812.3170658.4537139.1261774/D=egroupweb/S=170512 6215:HM/A=1564415/R=0/SIG=11t6t7kdo/*http://www.netflix.com/Default?mqso=6 0164784&partid=3170658> <http://us.adserver.yahoo.com/l?M=251812.3170658.4537139.1261774/D=egroupm ail/S=:HM/A=1564415/rand=760982327> 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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