Probably-whether to repair it?

I have friends which are fond stuntriding:)
Оne of these days they brought to me the motor from (DUCATI) with the broken fastenings, and plaintively asked me everything to repair.
Guys any thoughts, councils :confused:

http://i1203.photobucket.com/albums/...r1976/0404.jpg
http://i1203.photobucket.com/albums/...r1976/0405.jpg
http://i1203.photobucket.com/albums/...r1976/0406.jpg
http://i1203.photobucket.com/albums/...r1976/0407.jpg
http://i1203.photobucket.com/albums/...r1976/0408.jpg
http://i1203.photobucket.com/albums/...r1976/0403.jpg

The PP256 should be able to weld it. Is it cast aluminum?

I'd throw it over the hill.

If I were going to attempt a repair, I think I would split the cases, do a complete teardown, then machine off the mount.
I would then machine a tube with an undersized hole (so that it would not take quite as much heat as a solid bar) and try to weld the new tube in. Then re-machine the hole.
Tell them it will be at least 15000 RUB to do the job. If that doesn't scare them off, have at it.

It could be done. You have some parts that look like you'll need to be careful about overheating nearby. Controlling the heat soaked into those parts, will slow down the repair, but it still can be done. But you could either "vee" out the crack and re-attach the broken piece, or just build up the missing metal with filler rod and machine it down to desired surfaces afterward, (or more likely a combination of both) using AC-TIG. Either way, make sure there is no dirt or grease at the surfaces you are welding before you start joining the metal together. Check for clean surfaces with a light AC-TIG arc - when it leaves behind a white etched, surface everywhere, it means it will weld cleanly. Black crusty surface anywhere = clean those areas some more before you start welding.

-edit- check out the below threads, which may be useful for this work:

Using filler rod to "build up" a broken off aluminum casting:
http://www.everlastgenerators.com/fo...nt)-jakeru-s-9
http://www.everlastgenerators.com/fo...-TIG-build-up)

Repairing a cracked aluminum casting:
http://www.everlastgenerators.com/fo...r-(jakeru-s-5)

Limiting heat to a nearby heat sensitive area:
http://www.everlastgenerators.com/fo...e-with-He-mix)

Quote:

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Originally Posted by sportbike

I'd throw it over the hill.

If I were going to attempt a repair, I think I would split the cases, do a complete teardown, then machine off the mount.
I would then machine a tube with an undersized hole (so that it would not take quite as much heat as a solid bar) and try to weld the new tube in. Then re-machine the hole.
Tell them it will be at least 15000 RUB to do the job. If that doesn't scare them off, have at it.

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Thanks sportbike,jakeru
I told them approximately the same(but they speak that engine dismantling is a full ###)
from friends I don't take money,It is necessary to strain and create a miracle:D
I think to weld the broken out piece and to strengthen it an edge from aluminum,and to the place of a missing piece to turn the aluminum bushing, to cut it lengthwise and to try to adjust a half to a relief of a missing piece and weld all:confused:
Tomorrow I will start to conjure:)

Много фотографий пожалуйста.

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Originally Posted by zoama585

Много фотографий пожалуйста.

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Ок
(Good Russian):)

This is weird. When I first commented there were no pictures, but I see them now and no edit on the post. Something is up with my other computer.

Anyway. You can make the repair. But if they are friends (free or cheap). Either pass on it, or make them help with the repair. It will be some work, Jake outlined what you need to do. Note what he said on the black is bad.

I'm not going to lie, if it were mine I would try it! Not sure I would want to do it for someone else $$$. I could see a project like that costing me more money than I would make if I were charging. On the flip side it would be nice to know whether or not you could pull off that type of repair.

All was not too hopelessly . Work is made, client is happy ;)
Attachment 5821Attachment 5822Attachment 5823Attachment 5824
http://i1203.photobucket.com/albums/...r1976/0414.jpg
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http://i1203.photobucket.com/albums/...r1976/0420.jpg
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http://i1203.photobucket.com/albums/...r1976/0424.jpg
http://i1203.photobucket.com/albums/...r1976/0425.jpg

Looks good. Is that a piece of fuel injection rail that you used for the repair piece on the left side

Did you use your Powerpro 256 welder on this?

John

Very nice job. Get a little dirt and grease on there and I bet you almost can not tell it was repaired.

Is the motor pinned on the frame? I do not see threads and not a bike guy? Or does a pin go all the way through?

Good question from John, did you use the PP256? 4043?

Quote:

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Originally Posted by everlastsupport

Very nice job. Get a little dirt and grease on there and I bet you almost can not tell it was repaired.

Is the motor pinned on the frame? I do not see threads and not a bike guy? Or does a pin go all the way through?

Good question from John, did you use the PP256? 4043?

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Ducati's use a 10mm bolt that runs the whole way through the frame and engine.
Attachment 5825

Quote:

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Originally Posted by sportbike

Looks good. Is that a piece of fuel injection rail that you used for the repair piece on the left side

Did you use your Powerpro 256 welder on this?

John

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For restoration of the left part necessary to me half of bushing in diameter of 1 inch (25 mm) with an internal aperture of 31/64 inches (12.5 mm).
For economy of a material I have cut a piece of sheet aluminum in the thickness 3/4дюйма (20мм) have drilled in it an aperture with displacement, into an aperture have inserted a suitable bolt, have drawn in a nut, and all this design have processed on the lathe.After processing on the lathe workpiece has cut it lengthwise.The missing piece is ready,At welding I have passed through an aperture a rod in diameter of 31/64 inches (12,5мм) on through.
It is a pity to me that I don't know English language :(, and I know that to you very difficultly to understand that that I have written with the help Google translator (excuse) therefore I will support with drawing :) I hope all will understand.
Mike i use the PP256 and 4043http://s4.rimg.info/0f1fd42bc9220f84...fbab73fdd6.gif
http://i1203.photobucket.com/albums/...1976/IMG-2.jpg

Great explanation Rusian.

I can understand everything that you write. Google Translator is an excellent tool



Великий объяснений Rusian

Я могу понять все, что вы пишете. Google Переводчик является отличным инструментом

Quote:

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Originally Posted by sportbike

Great explanation Rusian.

I can understand everything that you write. Google Translator is an excellent tool



Великий объяснений Rusian

Я могу понять все, что вы пишете. Google Переводчик является отличным инструментом

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Sportbike thanks.
I am very glad that all clearly.
To me sometimes it is not absolutely clear that translates Google, have to strain a brain :D

Nice work,,,the man who owns the bike is lucky to have a friend like you...

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Originally Posted by donor76

Sportbike thanks.
I am very glad that all clearly.
To me sometimes it is not absolutely clear that translates Google, have to strain a brain :D

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I use this service http://translation2.paralink.com/Rus...h-Translation/ with the "compare" function to see the results of other services. My actual Russian speech is very basic... still learning.

Edit: Here is a direct link to the compare service with "back translation" http://imtranslator.net/compare/russ...lation/#window

Quote:

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Originally Posted by zoama585

I use this service http://translation2.paralink.com/Rus...h-Translation/ with the "compare" function to see the results of other services. My actual Russian speech is very basic... still learning.

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Zoama thanks for the link,
I shall use it.

Quote:

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Originally Posted by geezer

Nice work,,,the man who owns the bike is lucky to have a friend like you...

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As they say in an old Russian proverb (no have 100 roubles, and have 100 friends)
,,Не имей сто рублей,а имей сто друзей ,,:)