too many cylinders, boredom |
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too many cylinders, boredom |
r3dplanet |
Nov 2 2015, 09:47 PM
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#1
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
Some crazy how I have a collection of 2x 4 sets of 94mm cylinders from two liter engines that I had intended to bore to 96mm. It has been too long for me to remember why but the machinist rejected them for use. I want to say because they had been bored too many times already.
Can someone ease my conscience and say, "Marcus, just recycle them and move on with your life." Or do bored out 94mm cylinders have any other uses over their life cycle in bigger bore applications? I just want to verify that I'm not wasting a resource. Thanks. |
2mAn |
Nov 2 2015, 09:49 PM
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#2
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trying to see how long I can go without a 914 Group: Members Posts: 487 Joined: 14-November 13 From: Westchester (Los Angeles) Member No.: 16,644 Region Association: Southern California |
make something cool with them, like cupholders or something
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r3dplanet |
Nov 2 2015, 09:50 PM
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#3
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
If you're thinking of creating an 8-cylinder radial I'm totally with you. But I already have too much on my metaphoric plate.
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914work |
Nov 2 2015, 09:51 PM
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#4
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Member Group: Members Posts: 291 Joined: 9-November 11 Member No.: 13,762 Region Association: None |
Not following....
have they been bore'd out to 96's already? If not dont understand the comment from your guy? |
r3dplanet |
Nov 2 2015, 09:51 PM
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#5
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
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r3dplanet |
Nov 2 2015, 09:52 PM
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#6
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
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r_towle |
Nov 2 2015, 09:56 PM
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#7
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Cup holders or recycled steel now.
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914_teener |
Nov 2 2015, 09:58 PM
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#8
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914 Guru Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Marcus recycle them and move on with your life.
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r3dplanet |
Nov 2 2015, 10:01 PM
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#9
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
Super. Thanks, everyone.
I'm gradually moving on with my life. |
Dave_Darling |
Nov 2 2015, 11:51 PM
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#10
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
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r3dplanet |
Nov 3 2015, 12:04 AM
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#11
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
It's funny about that. As I was typing the words "8-cylinder radial" I knew in the back of my mind that the only vw-based radial I've ever seen used seven cylinders. But I think it's fabulous that you also knew this.
If you're thinking of creating an 8-cylinder radial I'm totally with you. Radials don't work so well with even numbers of cylinders. I forget why, but every row of practically every radial you can find has an odd number of cylinders. Most have 7 or 9. --DD |
thieuster |
Nov 3 2015, 12:29 AM
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#12
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Member Group: Members Posts: 447 Joined: 31-January 15 From: 275 mls NW from Stuttgart. Member No.: 18,384 Region Association: Europe |
If you're thinking of creating an 8-cylinder radial I'm totally with you. Radials don't work so well with even numbers of cylinders. I forget why, but every row of practically every radial you can find has an odd number of cylinders. Most have 7 or 9. --DD Like you, I forgot. Had to look it up: Ageless Engines Menno |
Chris H. |
Nov 3 2015, 07:30 AM
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#13
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Senior Member Group: Members Posts: 4,032 Joined: 2-January 03 From: Chicago 'burbs Member No.: 73 Region Association: Upper MidWest |
This isn't practical (IMG:style_emoticons/default/confused24.gif) ? That exposed trimmed AIRPLANE blade at the back is maybe not a good idea (IMG:style_emoticons/default/dry.gif) . Did he not see Raiders of the Lost Ark?
https://www.youtube.com/watch?v=L_CnvRufT7c Here's one specifically made out of VW parts. Don't think it's quite a DIY job (IMG:style_emoticons/default/biggrin.gif) . https://www.youtube.com/watch?v=SyRJeZ6s8uM |
mbseto |
Nov 3 2015, 08:29 AM
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#14
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Senior Member Group: Members Posts: 1,253 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
Rotary engines are more interesting. Meaning a TRUE rotary, not that Wankel impostor.
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Dave_Darling |
Nov 3 2015, 08:44 AM
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#15
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Interesting, yes. But as engines, they kinda suck. Especially the earliest ones that only had one valve. (Gnome "Monosoupape" == "One-Valve".) Valve timing was horrible, mixture control ditto, total-loss oil system that threw castor bean oil in the face of the pilot, zero throttle control...
The only reason they were so popular at the time is because the whole engine acted as a flywheel. So you didn't need a large (heavy!) bolted-on flywheel to keep the engine running somewhat smoothly. Weight saving is absolutely critical in aircraft, especially the early ones. --DD |
DBCooper |
Nov 3 2015, 09:33 AM
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#16
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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 |
Here's one specifically made out of VW parts. Don't think it's quite a DIY job (IMG:style_emoticons/default/biggrin.gif) . https://www.youtube.com/watch?v=SyRJeZ6s8uM That is SO cool!! |
Elliot Cannon |
Nov 3 2015, 11:27 AM
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#17
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None |
1500 hours in radial powered airplanes. Here's a pic of "Ole Thunder". Just getting the damn things started was fun. (IMG:style_emoticons/default/biggrin.gif) (Sorry for the thread creep).
Attached image(s) |
eyesright |
Nov 3 2015, 11:59 AM
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#18
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Member Group: Members Posts: 430 Joined: 8-January 12 From: OK Member No.: 13,979 Region Association: Southwest Region |
If you're thinking of creating an 8-cylinder radial I'm totally with you. Radials don't work so well with even numbers of cylinders. I forget why, but every row of practically every radial you can find has an odd number of cylinders. Most have 7 or 9. --DD A two stroke radial can have and even or odd number of cylinders. But a four stroke radial has an odd number of cylinders as the ignition pulse happens on every other TDC stroke. So the cylinders on a 7 cylinder engine fire in this order _ #1, #3, #5, #7, #2, #4, #6, #1, #3, ...etc. Clear as mud now? |
r3dplanet |
Nov 3 2015, 02:07 PM
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#19
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
I've seen that Mike Nieman video many, many times. I love that it's a completely impractical, genius-grade Rube Goldberg mounted to a Beetle. Sure a little shrouding might help the safety factor a touch but it doesn't detract from its glory. This guy probably had the same problem I did, "Huh, what do I do with this extra horde of engine parts parked in my living room?" and then proceeded to go nuts with it. That's just so uplifting and brilliant and a much more clever implementation than marigold planters. Who cares that it isn't practical? Its impracticality is what makes it great.
I went digging through my newest set of AA cylinders last night and found the machinist notes about the previous 2x sets of cylinders mentioned in post #1. The reason I couldn't remember why they were no good is because there was no explanation. In total, this is what the invoice reads: "QTY 2 | Check 2 old set barrels. No good. | $75 | $150" "QTY 1 | Check new set barrels. OK | $75" So I spent $150 to receive a contrite "no good" description. At $75 per word, this machinist is a very expensive writer. He couldn't even elongate "OK" to "okay." By contrast the invoices I write for my customers contain all manner of unasked-for detail. Partially so the customer has a record, partially so that if I have to review the work I quickly remember what the details were. The written word is an excellent tool and I'm not the first one to notice this. I thought that "OK" was unsatisfactory so I spent some time last night with my telescoping gauges and micrometer to measure the new AA cylinders. They're okay. By which I mean there's a spread of 6 ten-thousandths bore variance across all four. |
914_teener |
Nov 3 2015, 03:00 PM
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#20
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914 Guru Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Marcus....you aren.t moving on.
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