docc

As footgoose noticed, the Rosso Corsa is not a worry for aluminum flywheel. The '04 V11 are among the best sorted of the series. Sure, there are still some simple things to see to. Perhaps the biggest pimple on the Corsa is the tendency for the tank decals to exhibit separation/bubbles from various ill reactions of tank deformation and fuel additives, perhaps ethanol.

So, you can get a complete parts kit for the early gearbox recall?

Moto Guzzi "Bacon Slicer" (a reference to the exposed flywheel of the long running Guzzi horizontal single (1921-mid70s), in green, even: Let's face it, Redframe Greenies have good reason to strut:

Now! Y'all behave! You can only post "traitor" if you are a rooster-struttin' Greenie with no room in the garage for this wonderful RedFrame . . . Don't make me send The Big Brass Lady to Spank yer Bacon Slicer . . .

The GB has been a joy. I bought it new in '92 (after it had languished for two years). With almost 50,000 miles, she has been a good and faithful companion!

Wait . . . what?

Now, there's a guy that needed a hug!

From the "IOM bike help" thread, looks like a wide sump 1100 Sport with carbs and (what) frame?

Rich, The tank is a Moto Guzzi tank? Do you know what it was fitted to originally?

Evidently, Bacon Slicer Spanking will draw a crowd . . .

heh . . . . that wasn't where I saw that going . . . but, ya never know with Pete.

The face is only held by the bezel. The bezel is hard to get a purchase on to get tight.

Yep. Most "synthetic" labelled motor oil is a disappointment. When I decided to go with a guaranteed Group V base oil, selection was narrowed fantastically. TLDR? (Too Long - Didn't Read) . . . Yeah, I use Widman's work as more of a reference. I always learn something from him, while much of it remains over my head. But, he does cut to the chase periodically: "Why are there cheap, old technology, group I products in the market? Because people buy them and these oil companies have equipment they would otherwise have to write off."

I told this wayward person to stop hanging around Pete's Griso as he doesn't go in for this sort of thing. . . .

Specifically speaking to the Original Post and thread title, "Cheap oil" is kept cheap by using the cheapest base oil. With regard to viscosity degradation, these base oils suffer shear degradation of viscosity sooner than higher grade base oils. This statement is from Richard Widman's "Selection of the Right Motor Oil" (page 9): "Permanent shear: A cheap oil that depends on polymers for its multigrade properties begins to lose viscosity between 1000 and 1500 miles of use, falling out of its viscosity range." If you're serious about reading something "scientific" about motor oil, that applies to our V11, take the time and read Widman's presentation. http://www.widman.biz/uploads/Corvair_oil.pdf

Don't sell your V11 short . . . even JesterGrin_1 found some goodness in his 2002 LeMans. Where is that fellow these days?

Yep, for motor oil, it is "reasonable" and not "huge." For fork oil, much more worth knowing about.

Whew. See? I feel better already . . . .

To quote the presenter/ technician, "It looks amazing!"

http://www.viscopedia.com/viscosity-tables/substances/engine-oil/ Pretty sure if it's SAE rated it does have to be a certain viscosity. I think that prior to standardization the viscosity may have varied. So, as it turns out, the "SAE weight" is a rather broad range of actual viscosity. The better measure is centiStokes@100ºC (or 40ºC). With fork oils, the spread of actual viscosity within a particular SAE designation is quite broad (overlapping, even). For example, motor oils marketed for "high mileage" engines typically are spec'd into the higher viscosity in the stated SAE "weight" range.

. . . "warts?" . . . V11 have "warts?" Say it ain't so . . .

So, yeah: *whatever* on the oil, but make sure you get the incense right . . .

All good reasoning, Gmc28. Diesel oils do tend to have the higher ZDDP anti-wear additives relative to modern passenger car oils . I use three different Rotella products in my passenger vehicles, and routinely use their T6 Turbo Diesel product/ 5W-40 (probably has not been kind to the cats in that vehicle). CI-4 rated diesel oils are great choices for flat tappet motors (according to Richard Widman. (Richard Widman's Corvair) Like "Rotella", > Mobile1 Plus, I "change my oil religiously." ( flowing robes, ring of candles, tolling bells, incense . . . you know: the works!)