We did that long ago - my dad started as a tool & die maker for Electro-Motive (made.makes locomotives) at the LaGrange Rd plant outside Chicago before he went to the police dept (and before I was born too) and he taught ne all sorts of tricks that most people think are impossible. My neighbor scoured a local junkyard for a flywheel for his pickup that broke the ring/starter gear teeth off but was in good shape as a friction surface - he got one with a rusty face and took it to a machine shop to resurface. I asked him when he was installing why he just didn't get new teeth and he looked at me like I was stupid....he then said " they are machined on" and I told him " no they aren't" and then took his old flywheel up on a wood block and smacked the ring gear once hard and this ring with bad gears came loose - he crapped himself. So his next project comes up - restoring a ford pickup with also bad teeth - he remembered what I showed him but he thought since it came off with a hammer that it went on with a hammer - uh uh. I told him to get another gear ring since he trashed the first. He got back and I told him to set his flywheel in the freezer overnight and then get me in the morning. In the morning I told him to put his overn on broil and set the new ring on the rack and let it go for an hour. That got a really stupid look. I then took his oak 6x6 block into his kitchen, set the frozen flywheel on it - took the hot gear out with tongs and set it right on the flywheel as if it had 1/16th play and could even spin it for second. He wanted to touch it but I told him to leave it alone for 3 hours or more to stabilize outside. After lunch it was coold and stabilized and I washed it down with warm water for 15 minutes to set it further. I told him to try to spin the gear or pull it off - no way he was budging that. Machine shop nor the scrap yard ever told him that since it's easy to do and the ring gear was 1/4 of the resurfacing and even easier than yanking a motor in the junkyard to get a crappy flywheel. It cost him a 12 pack though but after that he started looking things up in the library, like using oil when he cut glass so that the wheel didn't make a rough line and didn't wear out. Now in Boy Scouts we got dry ice to keep things cold and when we had out big city-wide in Marquette Park in Chicago we'd toss the blocks into the lagoons - looked like a creature from the black lagoon movie onsite. BTW I can still get dry ice but many places list it as CO2 solid or want you to sign a damage/injury release and of course an MSDS is included with it. I got some for changing the link pins on my dad's bulldozer tracks about 4 yrs ago. -----Original Message----- From: computertalkshop-bounce@xxxxxxxxxxxxx [mailto:computertalkshop-bounce@xxxxxxxxxxxxx]On Behalf Of Cuffy10@xxxxxxx Sent: Friday, May 21, 2004 9:37 PM To: computertalkshop@xxxxxxxxxxxxx Subject: [CTS] Re: Hardrive Problem? In a message dated 5/21/04 7:26:32 PM Pacific Daylight Time, rhb57@xxxxxxxxxx writes: used dry ice That's an old trick but dry ice is scarce anymore. An old machinist at home when I was a kid had a monopoly on drilling spring leaves for overload springs on heavy trucks and trailers. To add leaves to support a bigger load they had to drill the new leaves to accept the center bolt that held the spring together. The old boy was the only one for miles around that could drill a spring leaf and wouldn't let anybody watch him do it...... not even his sons that worked with him in the shop. They found an envelope in the safe after he died....... he drilled down through small blocks of dry ice to keep the bit cool so it wouldn't lose it's temper and stop cutting. The dry ice he used came from the incinerator bin behind the drugstore......... it came in with the 2 1/2 gal tubs of ice cream they used to make your choclate frappe' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Education is when you read the fine print. Experience is what you get if you don't. -- Pete Seeger"