| Author |
Message |
    
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 873
Registered: 07-2002
| | Posted on Sunday, February 23, 2014 - 11:10 am: | 
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I'm restoring a Pierce inverted twin, it was done a while back, but it was evidently weather beaten, pits in the flywheel and crank painted over. The flywheel was pitted and wobbled, the crank was pitted in exposed areas, the journals and keyways were worn. I decided to make a new crank rather than try to repair the old one. I machined the rim of the flywheel and bored it .020" over to get it to run true. The belt groove in the flywheel will run the low tension generator, I'm guessing that is what it was there for. I ground the crank .020" over in the flywheel area, got a nice snug fit.
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billschaller
Senior Member
Username: billschaller
Post Number: 590
Registered: 12-2003
| | Posted on Sunday, February 23, 2014 - 01:26 pm: |
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very nice, one of my long term collecting goals is to get an inverted at some time. |
richarddurgee
Senior Member
Username: richarddurgee
Post Number: 3236
Registered: 11-2001
| | Posted on Sunday, February 23, 2014 - 08:29 pm: |
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*
Another fine piece of castagnos mechanical art work, what I like about this crankshaft is when its in the engine we can still see some of it !
Great Work !
* |
billschaller
Senior Member
Username: billschaller
Post Number: 591
Registered: 12-2003
| | Posted on Sunday, February 23, 2014 - 09:33 pm: |
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Now I remember, I want this inverted.
 |
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 874
Registered: 07-2002
| | Posted on Sunday, February 23, 2014 - 09:48 pm: |
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Thanks Bill & Richard. The crank and flywheel are the main focal points of this engine, I wanted them to look nice. |
ernie
Senior Member
Username: ernie
Post Number: 1800
Registered: 01-2002
| | Posted on Monday, February 24, 2014 - 07:39 am: |
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NEAT! |
miro
Senior Member
Username: miro
Post Number: 744
Registered: 11-2001
| | Posted on Monday, February 24, 2014 - 09:46 pm: |
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JB - I reckon this will be one of the feature pieces of the visit.
Surely must be one of the more interesting and well done engines.
miro |
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 875
Registered: 07-2002
| | Posted on Tuesday, February 25, 2014 - 07:47 pm: |
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Miro, I liked these engines when I first saw them in Lindseys Publications, didn't know what they were. I won't have this one running but John Smietana's is running well now, he'll have it going. |
raa
Senior Member
Username: raa
Post Number: 77
Registered: 02-2007
| | Posted on Tuesday, February 25, 2014 - 10:06 pm: |
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One sweet looking engine JB hope to see it running in a month |
rbprice
Senior Member
Username: rbprice
Post Number: 451
Registered: 11-2001
| | Posted on Wednesday, February 26, 2014 - 05:24 pm: |
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JB - will you be able to remove the gear that is on the old crankshaft and then press it back on the new one?
Bob |
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 876
Registered: 07-2002
| | Posted on Thursday, February 27, 2014 - 06:14 am: |
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Transferring it would be easy Bob, but it is in bad shape, I would like to buy or make a new one. |
rbprice
Senior Member
Username: rbprice
Post Number: 452
Registered: 11-2001
| | Posted on Thursday, February 27, 2014 - 09:25 am: |
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OK - send me the particulars and let's see what I can come up with. |
raa
Senior Member
Username: raa
Post Number: 78
Registered: 02-2007
| | Posted on Thursday, February 27, 2014 - 09:35 am: |
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Let me know if I can help with your gear. Have you looked in the Boston or Martin books? If you send it up I could get one of the local guys Carmona to make it for you.
cheers
Dick |
rbprice
Senior Member
Username: rbprice
Post Number: 453
Registered: 11-2001
| | Posted on Friday, February 28, 2014 - 08:16 am: |
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Based on the info you gave me JB the gear is 14 DP, 14.5 Press. Angle, OD is 3.143. The 14 DP is going to be hard to find. I will look and see if a standard lathe change gear might work but it probably won't have a 0.500 face width. |
rbprice
Senior Member
Username: rbprice
Post Number: 454
Registered: 11-2001
| | Posted on Friday, February 28, 2014 - 08:25 am: |
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As I suspected, the 14 DP tooth size is hard to find. This link http://www.msdiscount.com/columnar.aspx?cat_id=7130&category_site=STARTOOL
will take you to a company that has a cutter that you could use to make one but the cutter is $135 or so. Let me check and see if Ash Gear might have a rental cutter that would work but that would still be in the $50 - $75 range. But with this info, Dick Alcock's friend could make you one, if he has the right cutter, for a more reasonable price. |
raa
Senior Member
Username: raa
Post Number: 79
Registered: 02-2007
| | Posted on Friday, February 28, 2014 - 08:34 am: |
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JB turn up a blank and send it and the old gear to me and I'll get her down to Carmona Gear for you.
Dick |
rbprice
Senior Member
Username: rbprice
Post Number: 455
Registered: 11-2001
| | Posted on Friday, February 28, 2014 - 09:47 am: |
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Would it be prudent to ask if Carmona Gear has a 14 DP cutter? |
raa
Senior Member
Username: raa
Post Number: 80
Registered: 02-2007
| | Posted on Friday, February 28, 2014 - 03:46 pm: |
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14.5pa and 14 dp not a problem he has most of the old popular sizes in 14.5pa
full ahead
dick |
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 877
Registered: 07-2002
| | Posted on Friday, February 28, 2014 - 08:59 pm: |
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Bob, thanks for the help. I have a 14dp cutter but it's in the 25 tooth range, Dick is going to check with Carmona. I found a cutter in Australia, about $50 to get it here, may have the gear cut for less.
J.B. |
rbprice
Senior Member
Username: rbprice
Post Number: 456
Registered: 11-2001
| | Posted on Friday, February 28, 2014 - 09:48 pm: |
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I have asked my friendly gear cutter to provide a quotation. If nothing else, it will serve as a baseline. |
