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Discussion in 'GS Boxers' started by Dorsicano, Feb 3, 2011.
Wooden stove ooooops, not so easy for a bloo.y foreigner
Radio with valves YES!!!!!
Liquid cooling on its own won't change anything regarding clearance checks. The valve train is also not the same as the twin cam as it will be pure bucket and shim with no rockers as it is now. This should stretch the checks out although to what is anybodies guess. I would also think that the water Cooling and new valve gear could shave a bit off the width but they might have done other things like increase the stroke to widen it again.
I thought someone may have a guess as to how much it may stretch out the valve checks.
I own some other rigs with bucket and shim type adjustments and I've spent some time waiting for a dealer to get the shims that I need. I personally don't like the idea of a traveling bike that I may have to set somewhere with waiting for the right shims. BMW dealers are sparse enough. Add in having to either plan being where there is a dealer when you do your maintenance or being willing to wait for the parts to be sent to you to finish and it just starts not being that attractive. I suppose you could drain the oil, check things, measure and calculate what shims you need, put it back together to ride and order the parts to be delivered to a future destination and do the actual valves then. Either way, it's a bit of a hassle. Progress always has some type of price, and I'm just not sure that if that ends up being the price with the new GS that I'd end up buying one. No doubt plenty of others will.
Right now I plant to take really good care of my 07 so that any decision is hopefully quite a ways down the road.
Yamaha specifies 26k on all of its bikes. But note that Yamaha doesn't have some sort of super secret valve train technology that keeps valves in spec so much longer, they just think the bikes will run longer without needing a check.
Having had two yamahas (both sport bikes) that both had failed valves before 26k, I think that, were I ever to own one again, I'd check them as frequently as Honda or Suzuki would recommend for a similar machine. That's in the neighborhood of 12k
Stupid thing is that the K and F bikes have 30.000km valve intervals and the OHC boxer has 10.000km.
But the valve system is basicaly the same. Seems they kept the intervals low just becose it easyer acces.
I don't know anything about the f and k engines do they have rockers? If not then they aren't basically the same. There are loads more friction and ware points which is why the clearance goes out so quickly on the boxer. Unless your going round the world I don't think you need to worry about valve clearance even if they just double it. 12000 miles is a long trip even longer if it's moved to 18000. Do them as part of the prep for the trip at home and your sorted.
It would be nice if the liquid cooling and new design allows intervals of 12k or 18k. With my 07 I don't worry too much about where I will be when it's time for a service. I can easily carry the few tools needed to do it. I've done it more than once in a parking lot in a 3rd world country and it isn't a big deal. No concerns about finding the right shim or waiting for it, or finding what shim I need only to find out it isn't quickly available and having to put things back together and deal with it at a later time when the shim can be had.
The camhead Boxer valve intervals are check at 6 K miles then every 12K miles afterward. Adjustment is rarely needed even at 18K miles, The K16's check is at 18K miles and rarely needs adjusting.
No doubt the water Boxers will easily meet or beat that.
IMHO The effective valve check interval will very likely increase to at least 18K, maybe 24K as they gain experience with them.
The current Camhead can easily go 12K, and it looks like 24K is not unreasonable.
"The invention of the vacuum tube or thermionic valve....."
Never knew vacuum tubes were also called 'valves'. Thanks for the education.
The boxers have not had rockers since 2009 when they had CVH (Cam-shaft Within Head)
The new boxers is OHC (Over Head Camshaft) and they have Slipper Type Followers just like the F800/650, K1300/K1200S/R/GT and the S1000RR, With a hemispheric shim betveen the valve and the slipper.
No way in the dirt it won't matter but on the high way i guess we'll see I'm probably will help over weight people like myself if your tiny and like 90-150lbs like BMW clothing line you won't need it. The extra power you have to remember what happens in a desert when you need the reliability. I wouldn't take the extra hp I came from bike 165hp. I wouldn't take liquid cooled over air/oil in a boxer format. I also thought I they didn't do that for a long time because the piston stick out in the air. All the rich guys will up grade to the newest GSs and then the newest next one, and the next one. Never really owning something special. This R1200GS is a special bike it head over head on looks to the 1150GS it the last air/oil you now the one in the 20' and 3o's that are in museums and also it sold a record number over 200,000 in sales and counting The number one bike in sales 5 years in a row and it double the price of the 2nd place motorcycle.
Ran it through Google Translate...nothing doing.
Well its kinda strange coming from my 2000 Honda VFR with 80k miles on with NO valve adjustment ever needed..to my 09 GS with valve adjustments required every 6k!
What the hell are you trying to say? Did you just throw magnetic poetry at the refrigerator and copy down the result here?
I'm sure this pic has been posted before, but it bears considerable resemblance to the spy shot of the WC GS below.
If BMW does release a water cooled Boxer, I don't see much difference between a GS and the upcoming Triumph.
Meaning: BMW will have lost what made them 'BMW', and everything that goes with that.
It's a razor's edge, keeping contemporary while honoring your past. I'll go on a brief sidenote about the Japanese Four offering variants of the same bike in 600 and 1000cc displacements. Who cares about those bikes? They're disposable, nearly identical for all intents and purposes and have nothing to differentiate, no soul.
BMW goes down this path (and I'm sure they are weighing their future), they risk doing the same. Becoming one of their own competition, and playing a game of subtle variations on the same theme. Heritage and legacy is what the European brands had on their side to maintain high sales despite the economic downturn. While a commodity mentality had the J4 staggering on the ropes during that same time.
Think about that as the GS lineage moves forward.
The desire for 'more' needs to be weighed carefully in lockstep with 'how'. I'm sure the Quandts are weighing that during their strategy sessions in Motorrad, as well as conversations with Von Kunheim.
Because if the orientation of the pistons are the only 'detail' that separates these two bikes. . . .then they compete on price point alone. And that's a losing proposition.
Naah, close but still so different.
Honda Crosstourer could be nice, dual clutch...
Better buy a half a dozen of the remaining CamHeads, oil em' down and stash them away and most importantly, don't go for a test ride on the forthcoming WetHead, cause dollars to donuts all this nonsensical lamenting, will have been for nothing.
oh.... thats right.... carbed engines were even better.... guess we need to starting collecting all them too...
seriously dude... have you not seen the progression BMW has made? look at the old 850gs and compare that with the 1200gs..... MAJOR improvements.... major ground breaking technology....
go build your post count somewhere else if you can't bring something productive to the thread.... :huh