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Old 04-22-2012, 06:14 AM   #1876
rtwdoug OP
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then there is the motor.....



the cylinder bores were so good, we didnt bore it, as once you get to a certain oversize, they have to be relined or tossed out. it's at +030 now, & they just needed honed & new rings.
The valves werent as nice, there were some homemade guides, which didnt seal, and the rear exhaust wasnt sealing good either.
It now has new 30's sport scout valves (with better keepers than the 101) and matched guides.



one really nice thing it has are instead of those crappy clips holding the piston pins in (which can come loose & screw up a motor) someone made these aluminum buttons to go on either side & hold the pin in place. All bikes should be built with these. they cant wear the cylinder, and they cant come loose. I've also used them made out of teflon.



bottom end all together



and one cylinder on. waiting on a valve collar to arrive, then the rear cyl will be installed, & the motor will be done.

The front cyl nut is damn near impossible to get to with the mag installed, so I made a custom angled wrench to be able to get to it



I picked up this brass buddhist 'advisor head' used in prayer, from a monastery near mongolia this past summer.
(it has 4 faces, angry-sad-grinning-happy, to let you know if your prayer will come true or not)
I thought it would make a cool shift knob, & wanted to drill it out. Its hollow inside, and some of the casting slag came out when I drilled it.
I told my friends some big BS story about how they are cast with the remains of cremated monks inside, as they are very important prayer pieces. And that the small parts that fell out were actually monk ashes. I picked up the biggest piece & said 'look! a tooth!'
They were pretty freaked out.
It was big fun


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Old 04-22-2012, 06:23 AM   #1877
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You can tell you are at your friends place....way to clean to be your shop...or mine for that matter
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Old 04-22-2012, 07:00 AM   #1878
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Love this stuff! Thanks Doug.
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Old 04-22-2012, 10:24 AM   #1879
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Yo Doug, met you and Pol at LB Cycle Show.
I was just wearing your T shirt yesterday.

Best thread on ADV

Good luck to you on your trip!
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Old 04-22-2012, 12:14 PM   #1880
DoctorAbo
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Fantastic job Doug. Very well done . I realized that you are also a machinist. Is this a job youre doing in your fee time or is it your main job ?
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Old 04-22-2012, 01:00 PM   #1881
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Originally Posted by DoctorAbo View Post
Fantastic job Doug. Very well done . I realized that you are also a machinist. Is this a job youre doing in your fee time or is it your main job ?
Im no machinist. I have some machinist tools

I do have friends that are machinists, & they do all the technical important stuff for me.

I can only do so much with a hammer.

Doug
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Old 04-22-2012, 01:43 PM   #1882
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Bravo Man...Bravo!!!
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Old 04-22-2012, 01:58 PM   #1883
DoctorAbo
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Quote:
Originally Posted by rtwdoug View Post
Im no machinist. I have some machinist tools

I do have friends that are machinists, & they do all the technical important stuff for me.

I can only do so much with a hammer.

Doug

You are doing marvelously !
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Old 04-22-2012, 02:07 PM   #1884
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You are too modest about what you've managed with a hammer and a Geo alternator. Besides you have comic relief down to a fine art! "Look, a tooth!"


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Old 04-22-2012, 02:16 PM   #1885
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Originally Posted by rtwdoug View Post

The races were hard to get to, so the easiest way is to weld a washer to them. the head breaks them loose, and gives you a surface to put a rod on them to knock em out.

I've ran a weld bead along a race to shrink it, but adding the washer is a great idea. That's going into the file.


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Old 04-22-2012, 04:24 PM   #1886
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Quote:
Originally Posted by rtwdoug View Post
Im no machinist. I have some machinist tools

I do have friends that are machinists, & they do all the technical important stuff for me.

I can only do so much with a hammer. and a custom angled wrench!

Doug
fixt
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Old 04-22-2012, 06:39 PM   #1887
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Thanks for sharing! Working on a bike of that vintage is just so completely different than even the 70's stuff I'm used to. It requires a different skill set and you don't see much of it anymore.
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Old 04-25-2012, 09:34 AM   #1888
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Quote:
Originally Posted by rtwdoug View Post

one really nice thing it has are instead of those crappy clips holding the piston pins in (which can come loose & screw up a motor) someone made these aluminum buttons to go on either side & hold the pin in place. All bikes should be built with these. they cant wear the cylinder, and they cant come loose. I've also used them made out of teflon.

On the Indian they will be an interference fit, but the Teflon buttons unfortunately tend to come loose and then polish the cylinder walls on prolonged use. But you are right, for a racing engine, they are perfect (and can be re-used)...

Cheers,
Greg
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Old 04-26-2012, 12:28 AM   #1889
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I prefer using the spiral type piston pin clips, they will not come loose.
Not sure if they are available for the scout piston pins (a bit smaller dia than the chiefs?) though.
One of the standard type circlips came loose some years ago, and made a mess of the forged stroker piston in my chief engine.. $$$$
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Old 04-27-2012, 11:20 PM   #1890
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Originally Posted by rtwdoug View Post


I love the warning on that screwdriver. I'm afraid that would not fly in my shop.
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