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1. Re: driving questions (score: 1): Author: DANMAS@aol.com; Date: Mon, 1 Dec 1997 11:10:40 -0500 (EST); Michael: If material gets smaller when it gets cold - and it does - how can a hole get larger? Since the interior of a hole is lined with material, and the material gets smaller, how can the hole the; /html/mgs/1997-12/msg00008.html (8,560 bytes)
2. Re: driving questions (score: 1): Author: "Michael F. Adamson" <madamson@compuserve.com>; Date: Mon, 1 Dec 1997 13:54:11 -0500; <If material gets smaller when it gets cold - and it does - how can a hol= e get larger? Since the interior of a hole is lined with material, and the material gets smaller, how can the hole the mater; /html/mgs/1997-12/msg00018.html (9,249 bytes)
3. Re: driving questions (score: 1): Author: Chris Chandler <spawn@net-link.net>; Date: Mon, 01 Dec 1997 18:20:44 -0500; That's the simple part (the piston that is)... now... take a hole in a large piece of material. Does it get larger or smaller due to shrinkage when cold? My memories of a materials class I had a few; /html/mgs/1997-12/msg00044.html (8,226 bytes)
4. Re: driving questions (score: 1): Author: Teacher122@aol.com; Date: Mon, 1 Dec 1997 19:55:47 -0500 (EST); << Another illustration of this is making molds for cast iron. Molds are made <<larger>> than the actual piece desired to accomodate the shrinkage that occurs when the part cools. The exception is if; /html/mgs/1997-12/msg00053.html (8,434 bytes)
5. Re: driving questions (score: 1): Author: "Michael F. Adamson" <madamson@compuserve.com>; Date: Mon, 1 Dec 1997 22:03:13 -0500; << Another illustration of this is making molds for cast iron. Molds are= made <<larger>> than the actual piece desired to accomodate the shrinkage tha= t occurs when the part cools. The exception is; /html/mgs/1997-12/msg00075.html (10,573 bytes)
6. Re: driving questions (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Mon, 01 Dec 1997 22:15:33 -0500; This thread is so ridiculous. Irrelevant. Uniform things grow uniformly and keep all proportions the same. The shape doesn't matter or change, if the heating is uniform. Also irrelevant. Laws of phys; /html/mgs/1997-12/msg00079.html (9,447 bytes)
7. RE: Driving Questions (score: 1): Author: Chris Kotting <ckotting@iwaynet.net>; Date: Tue, 2 Dec 1997 12:38:47 -0500; Hokay folks, I can't resist. I have to weigh in here. Somebody earlier in this thread suggested an experiment where you cut a ring out of a cylinder wall, cut the ring, straighten it, freeze it and r; /html/mgs/1997-12/msg00136.html (11,211 bytes)
8. Re: Driving Questions (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Tue, 02 Dec 1997 16:19:59 -0500; The flaw in this logic is assuming that "the center" has to be somewhere in the material. In a shrinking cylinder, all parts can be said to move .5% closer to "the center", with the center being a po; /html/mgs/1997-12/msg00152.html (8,616 bytes)
9. Re: Driving Questions (score: 1): Author: DANMAS@aol.com; Date: Tue, 2 Dec 1997 16:51:29 -0500 (EST); ring right? Chris: That somebody was me, and while I can't take credit for the analogy - I read it in a magazine - a hole in a piece of material does indeed get smaller as it gets colder. If you don'; /html/mgs/1997-12/msg00154.html (10,506 bytes)
10. Re: Driving Questions (score: 1): Author: "Leigh Egbert" <leigh@eznet.net>; Date: Tue, 2 Dec 1997 19:16:52 -0500; Chris, you forget to take into account that the ENTIRE cylinder block will expand and contract. No matter what, a cold hole is a small hole and a hot hole is a big hole. <rather large snip> Leigh Egb; /html/mgs/1997-12/msg00166.html (9,239 bytes)
11. Re: driving questions (score: 1): Author: Teacher122@aol.com; Date: Tue, 2 Dec 1997 22:35:46 -0500 (EST); << That's the simple part (the piston that is)... now... take a hole in a large piece of material. Does it get larger or smaller due to shrinkage when cold? My memories of a materials class I had a f; /html/mgs/1997-12/msg00176.html (8,787 bytes)
12. Re: driving questions (score: 1): Author: Teacher122@aol.com; Date: Tue, 2 Dec 1997 23:04:21 -0500 (EST); << The illustration you used is not valid because you are dealing with a narrow ring of material that does expand when heated; the inside and outside diameter does get larger due to the shape of the; /html/mgs/1997-12/msg00180.html (8,733 bytes)
13. Re: Driving Questions (score: 1): Author: Robert Allen <boballen@sky.net>; Date: Tue, 02 Dec 1997 22:21:58 -0600; Just when I thought this thread was completely frayed, somebody finally makes an astute observation. Bob Allen, Kansas City; /html/mgs/1997-12/msg00182.html (8,134 bytes)
14. RE: Driving Questions (score: 1): Author: Chris Kotting <ckotting@iwaynet.net>; Date: Wed, 3 Dec 1997 07:41:40 -0500; Gentle people. I reread my earlier post on this subject, and you can/should ignore most of it. I must have been having a brain cramp. My apologies. Chris Kotting ckotting@iwaynet.net; /html/mgs/1997-12/msg00203.html (8,040 bytes)
15. Re: driving questions (score: 1): Author: Ray McCrary <spook01@mindspring.com>; Date: Thu, 04 Dec 1997 14:31:35 -0600; Actually, the new high speed diesels that are now in the cars and light trucks not only run at comparable speeds, but last a very long time indeed. Most of these engines are quite small. Ray before y; /html/mgs/1997-12/msg00289.html (12,369 bytes)
16. Re: driving questions (score: 1): Author: Paul Hunt <paul.hunt1@virgin.net>; Date: Thu, 04 Dec 1997 20:07:59 +0000; Surely not. In order to fit valve seats the head is heated and the seat cooled. The root cause of shrinking and expanding with heat is to do with the vibration of molecules and atoms. More heat = mo; /html/mgs/1997-12/msg00417.html (8,581 bytes)
17. Re: driving questions (score: 1): Author: Paul Hunt <paul.hunt1@virgin.net>; Date: Fri, 05 Dec 1997 19:29:43 +0000; An engine doesn't necessarily sieze because the bore is no longer big enough for the pistons, but because the heat cannot be conducted away fast enough so the surfaces melt. Same for bearings. Witnes; /html/mgs/1997-12/msg00420.html (8,043 bytes)
18. Re: driving questions (score: 1): Author: Paul Hunt <paul.hunt1@virgin.net>; Date: Sat, 06 Dec 1997 21:33:50 +0000; ... Leaving thousands of asthmatics dying in their wake. And what's this we UK-ers hear about Minivans and Cherokee-type vehicles being classed in the USA as small trucks and allowed to pump out 50%; /html/mgs/1997-12/msg00489.html (11,067 bytes)
19. Re: driving questions (score: 1): Author: Ray McCrary <spook01@mindspring.com>; Date: Mon, 08 Dec 1997 16:52:25 -0600; What I heard was that the Boys in Belgium were going to allow the Brits only a mule to ride into London. Less airborne emissions and full employment for the crossing sweepers! Ray being emissions tha; /html/mgs/1997-12/msg00602.html (11,573 bytes)
20. Re: driving questions (score: 1): Author: Paul Hunt <paul.hunt1@virgin.net>; Date: Wed, 10 Dec 1997 19:23:24 +0000; PaulH.; /html/mgs/1997-12/msg00783.html (11,972 bytes)

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