Chuck

Ah, that's what I suspected.

So none of them have broke with your test rig? Nope, but I *think* the original would have if it hadn't worn the test fixture down. Or not. Some springs don't seem to break. Certainly, it is being driven well beyond what is considered "safe travel" by engineering data. *Not* a good design. The .071 spring is well within limits, and *I think* strong enough to do the job. Our Southwest "proving grounds" will tell us whether is is or not.

It's just the pictures you see, with some rings to make it into a binder, I think. Double sided, foam in between. I haven't decided how to display it yet, maybe vertically. ? One of these days, the Kid will find it and throw it in the dumpster, along with Dorcia's *many* tin signs and memorabilia.

Welcome to the best place to learn about V11S on the planet..

My friend, who used to be 2Guzzidave.. now noguzzidave brought some stuff to a party yesterday, and told me to take what I wanted. This looked interesting.. 2017-12-04_01-29-14 by Charles Stottlemyer, on Flickr Still in it's original packaging. No doubt, it's worth thousands of dollars like that, but I wanted to see what was in there. 2017-12-04_01-29-32 by Charles Stottlemyer, on Flickr I'm guessing it was an original dealer display package. Kool stuff. I'll be doing a little redecorating of the Guzzi Garage ™

Final testing this morning on the Lifetime Guaranteed Imperishable Pawl Spring ™. First, the stock Guzzi spring: In neutral, 1750 grams Upshift 500 grams Downshift off the scale, but my fish scale says 5 lbs. That translates to 2268 grams. Now, the sacked 17000 mile Guzzi spring: Neutral 1100 grams Upshift.. absolutely nothing. Downshift 2000 grams. LGIPS: Neutral 850 grams Upshift 400 grams Downshift 1250 grams Pretty easy to see why the Guzzi spring breaks on the down shift..and why the lever occasionally doesn't return to neutral on the downshift. There is a *lot* of pressure on the selector shaft. (no. 27 in the parts breakout) on the downshift. I'll make a couple for Scud and keep this one for the Mighty Scura. "King.. this case is closed." Maybe

For a low volume job like this, the money is in the setup. The wire is almost free. They probably have computerized coil winders, so not much labor once set up. That's how that 9 cents apiece for 20,000 parts factors in. Oh, I'd make them all day for 20 bucks apiece.. but that sounds like work. Had a job.. Look, we don't even know if they will work in the real world yet. Our Southwestern testing division is on holiday..

Awesome..

Uhh, yeah. Early on in this project, I think Scud was talking around $300 to get 25 made. I'm guessing the world demand is somewhere between 50-100. There's not a lot of money to be made on Guzzi parts.. MGCycle wants $8.63 for it.

That would probably be 19950..

ZGUKT makes it a V11S, but I don't see a C01. Maybe it's a modified Billy Bob? No, that's a B01.. It's a guzzi..

They are good guys, too. Can't recommend them highly enough.

Are you a BMW guy? Finding the exact documentation on a certain model won't happen with Guzzi. Not to mention.. the documentation just might not be correct.

FTFY.

^^^^^Naa, it takes about an hour for fork seals on Ohlins. Where they hose you is on Ohlins oil.. Edit: I did a tutorial here.. http://www.v11lemans.com/forums/index.php?showtopic=19782&hl=+ohlins%20+fork%20+seal&page=2

Yer in a heap o trouble, boy..

Yes, it's an 04. The 10th digit designates the year. Soul. Yep. "If I have to explain, you wouldn't understand.."

Well, the next thing to do is I'll make up a couple to send to Scud for "real world" testing to make sure they'll work in the bike. He said early on, though, that he didn't want to be a spring purveyor.. and I don't blame him. I spent a *lot* of time doing paperwork on the Lucky Phil shifter extenders. Out of country is the worst with having to fill out customs declarations in triplicate, taking them to the post office, and waiting while they fill out customs declarations in triplicate. (!) He mentioned maybe having MG cycle stock them.. but I don't know if they ship over seas. It's still too early to worry about that, though. We'll have to wait until Scud gives the yeah or meh. ps, if we order 20,000 we can get them for $.09 each.

Thankya thankya Hopefully, what we've collectively learned will work. I'm passing the baton to Scud.

What material? Part of this is by design, maybe.. but much of that is there just isn't a skilled workforce any more. At least here in the states. Manufacturing went overseas in the 80s and 90s, and there weren't any young people joining the trades. Chrysler has been bugging a friend to come be a tool and die maker for them, and he's in his 60s. (!) They can't find any one.. Well, I don't know about the fairy thing, but you lucked out, there all right.. Like This

16mm is .630" especially, if it is *over* 16mm like Footgoose says, it would break. Honestly, I'm getting tired of doing this. I haven't kept track but have many hours in it. I hope it works. If it doesn't, we'll have to explore the coil spring, but getting something together that the average home mechanic could install would be difficult, at best.

Sounds epic..

One other thing: I moved the lever out so there was only about 1/16" of the end of the spring riding on it to test whether it would break there. That is the other place the stock spring breaks. I think I can say with reasonable certainty that this spring won't break. Will it work? It certainly works fine in the preselector on the bench. It's still TBD whether it works in the real world. 2017-12-02_10-52-07 by Charles Stottlemyer, on Flickr

Alright, stress test complete. 250,000 down and up shifts without issue on the spring with 28 degrees preload. (over stressed) Here is my report from the reliability lab. This is what I'll recommend. .071 dia. spring with 2.45 active coils. The spring calculator says this spring has 62.5 degrees safe travel. Total travel of this spring in service is 39+15= 54 degrees. Max safe torque of this spring is 6.8 inch lbs. At 54 degrees, this spring generates 5.88 inch lbs. At 54 degrees it's inner diameter is .622" The post it rides on in the Guzzi part is .590" diameter. (15mm) Shouldn't be any coil binding. Now, it needs to go to the Winter Desert Proving Grounds in the deep southwest for "real world" testing to see if it actually works. I'll make up a couple and send them out to our test engineer, along with the preselector, early next week.

I've never even seen the inside of one of those boogers, but Shirley the shims and spacers could be fabricated? Or are they more complicated than that?