Coil over "boring", Its not going good... |
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Coil over "boring", Its not going good... |
Andyrew |
Mar 24 2005, 04:36 PM
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#1
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Soooo Lets just say that this thing is tough... It does not want to be sanded, grinded, or anything...
Sandpaper and a whatchamacall it just takes off the aluminum in like dust particles. Grinding wheels are chunking up like no tomorrow... doesnt grind it off.. it eats it up.. like a tinsy bit at a time (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) Anyone have any suggestions? I'll take a pic of all the pieces i've tried... |
Joe Ricard |
Mar 24 2005, 04:39 PM
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#2
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
You must be the guy that wrote these build specs for this ship we are building. Cause I have absolutely no clue what it is you are doing.
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ArtechnikA |
Mar 24 2005, 04:43 PM
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#3
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
oh - let's just tell us WTF 'this thing' is, for those of us who haven't been following along every nuance of the Andyrew reality series... but basically, it's really hard to grind aluminum - it doesn't respond very well to abrasives. it forms aluminum oxide. aluminum oxide is a well-known abrasive... aluminum likes to be machined. a cutting tool in a lathe or mill will make short work of whatever you're trying to do. a carbide burr in a die grinder has always given me good results. of course, i have no idea what you're actually trying to do ... |
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TravisNeff |
Mar 24 2005, 05:11 PM
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#4
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region |
He's trying to open up a threaded collar to fit over koni hydralics. I'd take them to a machine shop, if you grind away at it who knows when you are getting to the point of failure (cutting into the backside of the outside threads) - that would be hard to control with a grinding tool by hand.
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Andyrew |
Mar 24 2005, 05:15 PM
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#5
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Heh, sorry..
Its.. ermm.. (IMG:http://www.colemanracing.com/catalog/images/pn343.jpg) The threaded piece. Im grinding it down on the inside so it fits over my shock. Its like .1 in to small. The coil over has a lip on the inside about that much that the shock fits over. So I know it can be ground down, but it doesnt want to be. I dont think it can be lathed or machined... That would be a big bit... |
ArtechnikA |
Mar 24 2005, 05:25 PM
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#6
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
i once toured a machine shop that made the hatchways into which submarine watertight compartment doors were fit. a single billet of stainless steel about 12' in diameter and about 3' thick. that shop could machine a whole 914 from a single billet of steel on a 5-axis CNC machine. somehow, i think your flange can be machined because - that's how they made it in the first place, yes? they'd chuck the flange part into the jaws and use a boring bar (basically, an internal cutter) to take it off. or go get yourself a carbide cutting burr for your die grinder and BE CARFEUL. i used to get mine from the Snap-On truck but These Guys look to have pretty good deals. i wish i'd known about them when i still lived in NV ! oh - and think about the loads, especially in rebound. compressive loads at the ends of the dampers can be on the order of 3X your spring rate... |
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bondo |
Mar 24 2005, 05:25 PM
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#7
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
You need a lathe and a boring bar. Easy.
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Chris Julian |
Mar 24 2005, 05:29 PM
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#8
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Member Group: Members Posts: 159 Joined: 19-March 04 From: SF Bay area Member No.: 1,821 |
Andrew, come on up to my place this weekend and we'll see what we can do. I have all the right tools. (IMG:http://www.914world.com/bbs2/html/emoticons/welder.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/sawzall-smiley.gif) I'm just a little concerned that you are going to cut right into the backside of the threads.
Chris |
Andyrew |
Mar 24 2005, 05:39 PM
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#9
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Whatcha got goin this weekend? I probably have work whatever time your thinking (3-11pm) and sunday's easter... And dad wont leave working on the house remodel on saturday.
I REALLY apreciate your offer! got to go to work. Thanks for the offer, sorry I have to refuse. (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) Andrew |
Chris Julian |
Mar 24 2005, 05:44 PM
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#10
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Member Group: Members Posts: 159 Joined: 19-March 04 From: SF Bay area Member No.: 1,821 |
I'm home tonight @ 6:00 and won't have anything going till Sunday. I'm in Santa Cruz Mountains so it's a bit of a drive for you, but if you're desperate I'm home. PM for directions/Phone#
Chris |
DBCooper |
Mar 24 2005, 06:21 PM
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#11
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
You're not taking off much, maybe try a cylinder hone or glaze breaker if you have one around. Just keep the stones well oiled.
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Brett W |
Mar 24 2005, 10:11 PM
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#12
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None |
It will take you about ten minutes on a lathe. The setup time will take you more time than the actual work. Please do it right.
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Mueller |
Mar 24 2005, 10:26 PM
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#13
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
I'm free Sunday morning.....7 am too early for you??? (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) |
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Mark Henry |
Mar 24 2005, 11:09 PM
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#14
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I once toured Dowdy Canada that made landing gear for 747's (and the USAF Osprey)...they had a lathe that you could fit a locomotive into...totally fuching huge. They also had CNC machines coming out of the ying-yang, plus a test booth that simulated a 6 story hard landing. Wild stuff. End highjack. |
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Aaron Cox |
Mar 24 2005, 11:12 PM
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#15
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
why didnt you just buy the right size collar? (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)
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Andyrew |
Mar 25 2005, 01:01 AM
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#16
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Aaron.. Not as much fun!
Besides, they didnt have it... 70 bucks vs ??? Mike, I got church!! I think I'll try the machine shop... Hey, At least I stocked up on grinding wheels!!! lol |
Brett W |
Mar 25 2005, 08:04 AM
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#17
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None |
I hope that 70$ was for both sleeves otherwise you got ripped.
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Andyrew |
Mar 25 2005, 11:53 AM
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#18
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
yup both.
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Andyrew |
Mar 25 2005, 04:12 PM
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#19
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Its at the machine shop.
Should have it done monday. On to the engine removal!!! |
Mueller |
Mar 25 2005, 04:14 PM
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#20
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
how much are you going to get charged? might have been cheaper to buy new Koni shocks (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) |
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