It's a little late for all that, isn't it?
Cylinder Bore Surface Finish
- Thread starter TPEHAK
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user_deleted
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and yet more of your self-indulgent cycle-babble "look at my technically brilliant vernacular" BS. you literally destroyed your own motor over a period of time.....don't possess the intelligence or learning apparatus to realize and acknowledge it....and now you're writing another mini-thesis on solutions to problems that don't exist. ridiculous.
H-D/Buell have produced approx. THREE MILLION 45 degree air-cooled sportster based V-twins to date. they've been ridden and ridden hard in virtually every imaginable motorcycling scenario known to mankind. infinitely updated....fairly bomb-proof....simple in design....stone reliable....beloved by their owners for the most part....free of any inherent design flaws or manufacturing glitches. and yet some non-m/c industry engineer from seattle comes along who professes to identify problems that don't exist and offers solutions and answers to questions never asked. laughable!
But the motor works. How is that possible that destroyed motor works? Or you mean one leaking o-ring is destroyed motor?
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GregoXB
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Anyone ever see this video? It was originally a video that Buell showed to it's employees. I ripped it off of Vimeo (I think) and put it on youtube because I felt like it deserved as much exposure as possible. I am not making any money off of it, I just think its a great video:
Please give it a thumbs up, thanks!
Please give it a thumbs up, thanks!
Silverrider
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:up::up: Thx for posting, always enjoy this video.!!
GregoXB
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Is it true that guy has a degree in aero space engineering? I was at a BBQ and I ran into a guy who claimed that he met him, mind you this was after a few IPA's.... He could have been talking about one of the other engineers tho... I was pretty tipsy lol
Man I wish Buell will be back in business and will fix his stuff to hit that reliability standards achieved by Japanese motorcycle manufacturers. If it will happen I will throw my 2009 Buell XB 12 Scg in the trash and will by the new generation Buell, but what I see is even Buell 1190 does not meet that reliability standards.
So you have new motorcycle and even don't know it it works or not? If it was me I would rev it up first day I own it. Because of what if it doesn't actually work? Even if I would own EBR Black Lightning which is the only one in the whole world I would rev it up.
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Curious. Do you think an 1190 is qualified to be an airplane either? Lol.
Oh theres some BS alright...
:angel:
:angel:
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ChiTownEngineer
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- Nov 17, 2015
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- 36
Gents
I have to jump in here for a quick minute - One thing to note is that while TPEHAK's posts may be, well, irritating, that doesn't always make him wrong (though sometimes it does). Taking apart a machine, yes even a masterfully crafted Buell motorcycle, and carefully inspecting and measuring components for comparison against manufacture specified standards is a perfectly acceptable approach to rebuilding that machine. To TPEHAK's credit, he does seem to have the required attention to detail necessary for that type of approach. That being said, his inclination to return for slice after slice of humble pie, dished out liberally, combined with his a-little-too-late criticisms of the Buell motor company's manufacturing standards can be tough to take quietly.
On another note, there's a lot of talk about what can cause all the carbon buildup on pistons and comparisons are made to this motor or that motor, but nobody seems to acknowledge that these are very hot-running air cooled motors. You can do everything right, have the highest manufacturing standards, use the best parts and the best seals etc., but there's one thing that you can't escape - thermal expansion of the materials being used. These motors are expected to run at 30 deg F to over 400 deg F. That's a huge range. If you're motor is going to have enough clearance to not seize when it's that hot then it's going to have big gaps when it's cold. That will lead to blow-by at lower running temps and there's not much anyone can do about it.
Years ago my dad and I were into Chevy Corvairs. Air cooled flat 6 motors with a lot of design similarities to our motors. They ran cooler than HD/Buell motors as they had a fan blowing on them all the time but still got well into the 300+ deg F range. Man, it didn't matter how well you rebuilt those motors, they got carbon'd up. However, it didn't seem to bother them. They ran fine with a bit of crap on the pistons and unless you pulled the head you'd never even notice.
Now, a lot has changed since 1960's era engines but one thing has not, the thermal coefficient of expansion of steel and aluminum, and our motors seem to experience the same carbon issues as generations past. But who really cares? These things are goddamned fire breathing v-twin motorcycle engines, not a swiss watch. Run em hard, change the oil when it's dirty, add oil when it's low. It'll last 100K miles whether it's got a little carbon on the piston or not. And if it really bothers you to see carbon on a piston, here's a simple solution. Don't look down the cylinder. You'll never notice the difference.
I have to jump in here for a quick minute - One thing to note is that while TPEHAK's posts may be, well, irritating, that doesn't always make him wrong (though sometimes it does). Taking apart a machine, yes even a masterfully crafted Buell motorcycle, and carefully inspecting and measuring components for comparison against manufacture specified standards is a perfectly acceptable approach to rebuilding that machine. To TPEHAK's credit, he does seem to have the required attention to detail necessary for that type of approach. That being said, his inclination to return for slice after slice of humble pie, dished out liberally, combined with his a-little-too-late criticisms of the Buell motor company's manufacturing standards can be tough to take quietly.
On another note, there's a lot of talk about what can cause all the carbon buildup on pistons and comparisons are made to this motor or that motor, but nobody seems to acknowledge that these are very hot-running air cooled motors. You can do everything right, have the highest manufacturing standards, use the best parts and the best seals etc., but there's one thing that you can't escape - thermal expansion of the materials being used. These motors are expected to run at 30 deg F to over 400 deg F. That's a huge range. If you're motor is going to have enough clearance to not seize when it's that hot then it's going to have big gaps when it's cold. That will lead to blow-by at lower running temps and there's not much anyone can do about it.
Years ago my dad and I were into Chevy Corvairs. Air cooled flat 6 motors with a lot of design similarities to our motors. They ran cooler than HD/Buell motors as they had a fan blowing on them all the time but still got well into the 300+ deg F range. Man, it didn't matter how well you rebuilt those motors, they got carbon'd up. However, it didn't seem to bother them. They ran fine with a bit of crap on the pistons and unless you pulled the head you'd never even notice.
Now, a lot has changed since 1960's era engines but one thing has not, the thermal coefficient of expansion of steel and aluminum, and our motors seem to experience the same carbon issues as generations past. But who really cares? These things are goddamned fire breathing v-twin motorcycle engines, not a swiss watch. Run em hard, change the oil when it's dirty, add oil when it's low. It'll last 100K miles whether it's got a little carbon on the piston or not. And if it really bothers you to see carbon on a piston, here's a simple solution. Don't look down the cylinder. You'll never notice the difference.
"Don't look down the cylinder. You'll never notice the difference."
This. So much this.
And running them hard, hot, and long, will reduce carbon build-up. The worst thing you can do is run them cold, or for only short distances. That is a universal rule since the second engine was built, not just for air-cooled, or Buell motors.
This. So much this.
And running them hard, hot, and long, will reduce carbon build-up. The worst thing you can do is run them cold, or for only short distances. That is a universal rule since the second engine was built, not just for air-cooled, or Buell motors.
ChiTownEngineer
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- 36
Agreed.
user_deleted
Well-known member
chris: respect you and your op-ed above based on a fairly robust TEABAG defense.....but click the link below and see his comment. THAT is the very essence of why he's dealt such abuse on here. he's now reduced himself to spewing unmitigated trolling and mockery.
http://www.buellxb.com/forum/showth...e-the-parts-most-likely-to-go-bad-first/page4
http://www.buellxb.com/forum/showth...e-the-parts-most-likely-to-go-bad-first/page4
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