docc

Um, so . . . when performing the routine maintenance of cleaning the pistons and "equalizing" the piston movement, the trailing/ larger pistons should be expected to move first (during maintenance with the pads removed, watching the movement of the pistons while applying pumping action from the master cylinder)?

I did figure out a way to display this illustration, but not from the Triumph site; from the source they referenced on Quora. Seems Lucky Phil knew all of this already. No surprise, it's all news to me . . . https://www.quora.com/Why-do-BMW-brake-calipers-have-multiple-pistons-that-are-different-sizes-in-the-same-caliper/answer/Vk-Gopalakrishnan

So I have it backward, saying that the trailing (top) piston is the smaller? (This is very hard to see with the brakes mounted.)

Alright, so . . . when cleaning and "equalizing" the piston movement during brake service (on the original V11 caliper pistons), the smaller pistons, closest to the brake line input, should be expected to move first (if I understand this technology, now). And that, this not so much to put "more" pressure on the trailing side of the pad, but to even out the pad wear and contact over this rather long pad (of the original V11 single pad Brembo) due to the "quite different thermal and therefor frictional conditions" between the leading and trailing edges of the pad. Yes?

Here we go. Back to school, docc. As many times as I have cleaned and rotated my pistons, I never saw the size difference. I have always tried to get them to all move the same. Apparently, this is not the actual design! Looking carefully in at the pistons, in situ, it appears the smaller pistons are on top of the caliper (the trailing side of the pad). So, light braking moves the smaller (top) piston and engages the trailing side of the single pad first? And full braking engages to entire pad, but the trailing side still "bites" ~10% harder? Fascinating . . .

Says "BREMBO" instead of " Brembo ?"

Perhaps one of the down sides to a single model forum: the more limited sharing of knowledge and observations between models and even across brands. Look for this thread to move "Technical Topics" for better archiving . . .

And those same Valpolini valve cover gaskets for the 2-valve/cylinder "CARC" motors "retrofit" to the V11 ? https://www.mgcycle.com/index.php?main_page=product_info&products_id=4634:18fc72d8b8aba03a4d84f66efabce82e

Cool, thanks. So, any valve cover gasket for a "square fin" (1000 (949), 1100 (1064) / V11 ) will interchange the later 2-valve/cylinder 1100/ 1200 ? And vice-versa?

Thanks for the clarification. Just talking gasket compatibility here. If I carry these spare V11 "square fin"(silicone) gaskets for someone's bad day, what will they seal (if even temporarily)? Sure: V11 (Sport/LeMans/EV), but also earlier square fins? Later BigBlocks (1100, 1200 2Valve? 4Valve? "8Valve?") All of these valve cover gaskets are interchangeable?

@Goofman knows of this thing he speaks . . . South'n SpineRaid, 2015

And the valve cover gasket thickness could compromise that reach? Wow, that is tight tolerance!

I don't understand that. If a V11 valve cover gasket, of whatever type (Silcone, metal, OEM) is fitted to a later BigBlock, it will seal the valve cover? Yet the plug lead will no longer reach?

But V11 Sport valve cover gaskets WILL NOT fit the later models?

Because I was uncertain those are compatible with our V11: I bought the OEM green ones: https://www.mgcycle.com/index.php?main_page=product_info&cPath=170_174&products_id=422 I am certain they fit, lasted me all this time, and are $2.50US less, EACH. That-there is five bucks, rat'chere.

oooh - I love the champagne LeMans! If you would like, copy&paste those URL using the "link" [-] in the tool bar at the top of the reply window. Not everyone can see the FB listing, but the CL listing will be accessible . . .

Haha: " 5. I still might be confused. " Thanks for the clarifications. Yours weren't the only posts that had me confused. But, that's on me. I looked in my pile and see my replacement valve cover gaskets, for my thinning originals, are the green OEM "whatever-the-hell-they're-made-of " type. I did get the metal type for my eventual timing chest gasket change (also still original). The RealGasket silicone jobs go with me to places like the SpineRaid where a sudden need might arise. ( Thank you, @HRC_V4 ! )

I count three different gaskets in the discussion. The originally posted silicon gaskets ("Real Gasket"), the highly recommended metal gasket with self bonding surfaces, as well as references to the OEM "paper" (actually composite) gaskets. Frankly, I've found the thread hard to follow.

Makes me wonder if Joel Levine, in Georgia, has a spare he would send you . . .

Pretty sure that is a NoMar with a hitch mount. I can ask. Or you can talk it up with Josh at the SpineRaid . . . Only if it's yellow! Or some other color . . . Won't be the first Trumpet at a South'n SpineRaid. South'n SpineRaid #2, 2006

I did that until the aluminum threads of the manifold came out with the bolt one time. I'm certain this had something to do with the shaved ape that was turned the wrenches . . . Then it was back to the brass fittings with caps.

Hey! I resemble that remark!

I'm seeing three tire strategies (and maybe a fourth, if you play your cards right) . . . 1) Calculate the tire life, strategize the lead-up riding, and make it home with at least a couple hundred miles to spare ( sketchy-me, again, The Gambler/ Jack of Spades ). ♠️ 2) Use up the existing tire with the lead-up riding and arrive at the SpineRaid with a 100% tire. (Randy, The Jack of Diamonds ). ♦️ 3) Wear out truck and trailer tires, but preserve motorcycle tires. "Get There. / Bring Tools." (A known, valid, strategy. Our most mature, and most calculated, element, The Jack(s) of Clubs ) : ♣️♣️ 4) Discover a tire fail and enjoin in the solution. Pray for divine intervention. (The Jack of Hearts. ) ♥️

I apologize for missing your clear instruction to "scroll down to . . . the bulb holder." I recall reinforcing these weak bulb holders with "JB Weld" steel epoxy composite. Has yours gone missing, entirely?