The All New 2013 LIQUID COOLED R1200GS threadfest

[Basic_Gerd]

Originally Posted by K u r t

Pardon me, but is there confirmation this new engine is 1300 cc? Where did that figure come from?

Here it reads as follows:

• 75 stroke x 100 bore => 1178 cm³
• 75 x 102 => 1225
• 78 x 102 => 1274

"Confirmation"? You really ask for "confirmation" - by whom? BMW?

[Basic_Gerd]

Originally Posted by Emoto

So the cylinders are part of the engine crankcase. OK. Can you imagine how the pistons are installed...? When & where shall the piston pins be pushed in...?

Overhauling... ? You think that clutch changing is a MCA? You ain't seen nothing yet.

Well, since the Nikasil days way back in the airhead mesozoicum, the excessive wear of pistons / cylinders (meaning regular boring and oversized pistons) is more or less over. But think of all the tuning shops selling their "fablulous super hi-pro performance big-bang pistons" ... better think of something new, guys. Betta getta EPROM burner. Machining? Forget it - learn C#...

[Ricardo Kuhn]

Originally Posted by Basic_Gerd

So the cylinders are part of the engine crankcase. OK. Can you imagine how the pistons are installed...? When & where shall the piston pins be pushed in...?

Yeah how do they do it....

I was wondering about that too, Do they install them when the cases are "Split", Man what a pain in the butt, Even more if you ever need to work on them and/or replace anything even a job as simple as the rings.

[Emoto]

Originally Posted by Basic_Gerd

So the cylinders are part of the engine crankcase. ...

[Ricardo Kuhn]

Originally Posted by Emoto

Then again the target audience for this bike, Will not keep the bike for more than a few years (even A Year like you sadly see around here all the time) so is a None Issue at least for them....

Disposable Engines My ASs

[Emoto]

Originally Posted by Ricardo Kuhn

Then again the target audience for this bike, Will not keep the bike for more than a few years (even A Year like you sadly see around here all the time) so is a None Issue at least for them....

Disposable Engines My ASs

You could be right, Ricardo. And, from an engineering standpoint, I suppose that not having to keep seals tight at joints between cylinders and blocks, is a plus for the idea, but who the hell wants to pull the motor and split the cases to re-ring or put in a new piston.

[i_isntreal]

Originally Posted by Ricardo Kuhn

Yeah how do they do it....

I was wondering about that too, Do they install them when the cases are "Split", Man what a pain in the butt, Even more if you ever need to work on them and/or replace anything even a job as simple as the rings.

They probably have a removable oil pan. Kind of like a V8 where you have to put the piston on the connecting rod and drop it into the jug. Only it would be a bit more of a headache to get the top connecting rod bolt on/off. Nothing impossible, just a headache, and another specialty tool for the stealerships to sell.

[supershaft]

I'm still stuck on the water cooling. If a boxer twin isn't air cooled, there is no need to run one. So many engine layouts can do everything better IMO, except for air cooling.

[OConnor]

Originally Posted by supershaft

I'm still stuck on the water cooling. If a boxer twin isn't air cooled, there is no need to run one. So many engine layouts can do everything better IMO, except for air cooling.

The cylinders are like really expensive frame savers.

[gelandestrasse]

Originally Posted by OConnor

The cylinders are like really expensive frame savers.

You can get the frame saver saver. And since that's kind of expensive to replace if it gets scuffed there's the frame saver saver saver that protects the frame sever saver which is necessary to protect the frame saver.

[Ricardo Kuhn]

Originally Posted by supershaft

I'm still stuck on the water cooling. If a boxer twin isn't air cooled, there is no need to run one. So many engine layouts can do everything better IMO, except for air cooling.

You are so Right, Really good point, The Boxer's Make sense if you need to keep the heads cool down by the air (well Oildheads kind of do it too)


But the extra width is kind of waste if the engine is cooled by water

[Knee Dragger]

Well , BMW might just be working on how to put a modern twin in a modern Isetta . http://www.bmw-tech.org/wiki/Isetta On the bottom it talks about a 2010 . Just a thought ,

[JimVonBaden]

The full bike pick is a terrible photoshop of a mix of 1150GSA, R1200R and doG only knows what.

As for the motor, I highly doubt that is anything like any possible very future Water Boxer.

Jim

[Ricardo Kuhn]

Originally Posted by JimVonBaden

As for the motor, I highly doubt that is anything like any possible very future Water Boxer.

Jim

Jim what makes you say that...

[kvr929rr]

You can't really tell if the cylinders are integral with the block from that picture. Having the cylinder not attached to the block is not an impediment to water cooling either. The CBR1000RR has separate crankcase and cylinder blocks. Having the cylinders stick out with a longitudnal crankshaft does have other advantages over other layouts such as packaging & handling