How a Harley-Davidson Big V-Twin Engine Works - Harley Davidson 103 Engine Cutaway View and Demo

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Ever wonder how a Harley-Davidson Big V-Twin engine works? How about the Harley-Davidson 103 Engine? Check out this video of our cutaway engine and learn how all the internal components do what they do!
Harley-Davidson of Tampa: 813-213-3415
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Harley-Davidson of Panama City Beach: 850-820-0386
Scott Korol, Service Manager at Panama City Beach Harley-Davidson gives us an in-depth look at all the internal and external moving components that allow a Harley Davidson engine to function and generate the power you need on the road! This engine is home at Panama City Beach Harley Davidson in the Service area. Any of our WORLD FAMOUS Team Members would be more than happy to show you how this super cool 1 of a kind model works!
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17 фев 2016

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Комментарии : 67

@kaleighproductions 2 года назад

That is damn near the best teaching tool for a bike engine I have come across thanks

@jeffreyricketts348 7 лет назад

I want to know what the fastest Harley Heritage Softail Classic is always been fascinated with these kinds of bikes love Harley-Davidson Road when I was a kid with grandparents dad

@mcozpda3392 4 года назад

And i want to now the bore x stroke from a 103 .. cheers

@cmfreeusa7040 2 года назад

That’s my dealership….these guys are great…

@GrainGripping-zg5nc Год назад

Thank you very much

@shaverlocal 5 лет назад

It makes you wonder how much the chain drive cams even under tension throws off the valve timing compared to a gear driven unit. I converted my twin-cam to gear and never looked forward.

@Peter-976 4 года назад

@shaverlocal actually it doe not make me wonder at all. But obviously it does for you if you changed to gear drive.

@carstuff4u942 2 года назад

It’s called, “never looked back”

@jimmypoobah8094 2 года назад

Could a Harley Davidson engine run on its side? If the oil pickup were repositioned.

@hidad5601 3 года назад

That signature Harley grinding

@drwombat 3 года назад

I've got an evo motor that had sat for about 5 years i need to spin it over by hand like this. My jsp has an easy access bolt to turn for this but I'm not finding anywhere so easy on the evo any ideas?

@lucky8003 7 месяцев назад

You have to remove the primary drive cover, and turn the compensator sprocket with a socket of the correct size.

@anthonypease1072 7 лет назад

so in theory, if i have a beginners grip thus far, if 1 wanted -for my own curiosity- to reduce the cc, 1 could take reduce the heads, and pistons? this is basicaly formed from not wanting to stick a honda v-twin 250cc in my AMF z90 but wondering if there was a way to cusomize a block to reduce cc , get that harley v twin.

@TAMPAHARLEYGROUP 7 лет назад

there is no substitution for displacement, run what you have and have fun!

@drfaizulhassan2319 2 года назад

HD 250 cc and 500 cc v twin engine alone price please ??

@seethesvt 3 года назад

How does the spark plug and fuel injector know when to fire of there's not cam sensor? When changing the cam it doesn't matter which rotation the crank is on when aligning the gears. So how does the ignition know the difference between TDC of the compression stroke and TDC of the exhaust stroke?

@jonr4651 3 года назад

I might be wrong but I'm pretty sure the ignition fires on both cylinders every time in a Harley motor. Not super sure if that even answers your question actually.

@carstuff4u942 2 года назад

Their is a crankshaft sensor

@ad1960rag 7 лет назад

funny how the took off the plastic cam chain tensioner

@yanceyboyz 2 года назад

It's a 103 not the 88, they changed the design when they did the larger CI engines due to that issue

@CalDeRosia 3 года назад

Jesus this was helpful.

@codysloat2419 2 года назад

Can anyone tell me what the actual name of that tool is he’s using to turn over the motor !?

@carstuff4u942 2 года назад

It’s home made

@mightymcy4297 Год назад

That music though! 😅

@thebadterrorists5323 2 месяца назад

No problem with the tensioners on this baby.....they removed them.

@InTheDogHouse3DPrinting 8 лет назад

Did anyone else see the gap between the piston, and cylinder? That piston was moving around a lot in there.

@DanielSanchez-ec3oi 4 года назад

If this is a serious comment you are clueless. 😂

@MycketTuff 2 года назад

Yes, now the moon will explode :(

@ghostmost2614 Год назад

Well...didn't leak oil

@randy1ization 6 лет назад

GET AN INLINE TWIN, !

@jameswise7656 6 лет назад

best engine out there. no need to have high rpm unless ur trying to speed more gas money. amazing tq through the rpm range. all steel through the cylinder walls and heads inner layer and a steel crank that'd built to last 100's of years not aluminium shit that wears out in 5 years if ur lucky. 2 valves per cylinder witch is all u need and more parts means more problems so 8 or 16 valves waste of time and parts. 2 pistons size of trash cans not 3, 4 or 6 again more parts that can go bad. harleys keep everything so simple and that's the best part about em. air cooled engines are by far the best and proven time and time again. long stroke vs short stroke again harley wins cuz short stroke high revving engines wear out 10x as fast proven time and time again. plastic cam chain tensioner everyone is complaining about is silly prolly the same people that believes sportsbikes are built better then a harley and ohhhhh there plastic hahah but now plastic sucks on harley hahah but there whole bike is made of it hahah. old technology is the best and that's proven. new shit is advanced but also made to break down as fast as u get it. look at TV's for example back then u bought a tv and it lasted 50-100 years now Japan shit 3-5 years if ur lucky. washer and dryers now 3-5 years furnaces lucky 5 years back then 25-40 years. everything with new tech fucking sucks. look at phones now days last maybe 3 years but old ass land phone lasted 20+ years. fuck new tech I'm young but I'm sticking with the old harley engine. I don't have time to keep repairing new tech sorry. I'm sticking with harley the next 60 years😂😂😂my harleys so far have been the most reliable bikes I have bought. the metrics I've had have been straight asswipe.

@OriginalOldSkoolFunk 6 лет назад

James Wise Awesome opinions...and I certainly cant argue with your experiences...but I have never gotten over 40,000 miles on a Harley engine wirhout a major engine repair or two. I cant say the same for my 99' Suzuki Intruder that logged 169,000 repair free miles BEFORE the odometer quit. That was 8 years and probably another 70,000 miles ago, and still no breakdowns. I've been riding a 99' Honda Valkyrie Interstate now for many years, and it too has high miles, no breakdown. I guess I'm just agreeing with you as my handle implies. I believe in the OLDSKOOL stuff also, but the Harley engine just hasn't given me the life and confidence of the Metric engines.

@7316bobe 6 лет назад

I had a Yamaha 1980 XJ650 and it had run to 138,000 miles when I sold it. All the major work that I had to do was put new rings in at 100,000 miles. Not another thing did I do to this motorcycle. I sold it and bought a Honda 2005 VT750C V twin motorcycle because I like the torque of the V twin motor. It has now done 76,000 miles and looks like it is going to go on for ever. I am 65 and could not even push a Harley around in my shed let alone ride one. I am afraid that they are just real heavy old school slugs made for cruising the highways at 55 MPH.

@BENNO117 3 года назад

I'm sorry but that was the most incorrect comment that I have ever read.

@seabhac1000 5 лет назад

Black engine. Dark colors recede. Black on black. Video not clear.

@bobbyarmstrong9481 4 года назад

Put on some glasses, old man

@MycketTuff 2 года назад

modOr :D

@anthonylavallee4362 Год назад

Glad to see how the push rods work...Not!

@Cruiser007 8 месяцев назад

If you want to become rich, open a Harley Repair shop.

@goodboyringo9716 3 года назад

Go down and see the junkie Harley parts in the engine. You would think harley would change the junkie parts and make an engine the buyers wouldn't need to modify to make it reliable . Compensators, cam bearing, cam chain tensioners , roller crank bearings , over heating issues , auto adjustable primary chain adjuster, oil pump and valves train ticking. I'm sure theres more .

@Shortley 3 года назад

I know multiple people with multiple HD bikes and have had 0 problems besides maintenance with high mileage bikes. 50k+ mileage. I hate overrated things and HD is definitely a little overrated but not by much. I own a 2020 iron 883 but only have 3,500 miles on it but I haven't had a problem.

@goodboyringo9716 3 года назад

@@Shortley ... That little 883 isn't built the same as a Twin Cam so if you don't own a Twin Cam you can't speak of it. Theres even major oiling problems with the M8 . Keep riding that 883 and you'll be fine.

@Marc-NZ 2 года назад

even on this demonstration this engine vibrates...lol..thats the engine you built when you dont have enough money...

@eb1941 4 года назад

Lucky that the cam chain tensioners are removed so they don't fragment and blow apart the motor. Harley really gave all their customers who purchased their TC engines the shaft (not out of true crank shaft) and did nothing to make their faulty design correct. For me, HD lost a loyal customer.

@Peter-976 4 года назад

@e b bullshit! You were never a Harley customer. You just want to rag on old technology.

@yanceyboyz 2 года назад

It was only an issue on the 88s this is a 103....they changed the design in 2007........so you're no Harley fan... otherwise you'd know that

@eb1941 2 года назад

@@Peter-976 2003 Road King and 2005 Deluxe, both bought new and I still have both. I expect a company to stand by their product and fix their design mistake, especially if their product is considered a premium product. The cam chain tensions should have been fixed 1999.

@eb1941 2 года назад

@@yanceyboyz My comment was that the mechanical chain tensioners were removed. I understand that after 8 model years HD fixed the problem. It should have been fixed in 1999, not 2007 when hydraulic tensioners were released. Just a shame the HD does not stand by their product.

@yanceyboyz 2 года назад

@@eb1941 how could they fix it in 1999 when it was a wear issue that presented itself at all different mileages? Some 88s did 60k on the factory set some did 15k. How could they fix it the same year of release? There was a bearing issue on the 1999 and they resolved it for mid 2000 release models....so they do fix known issues....

@tomcata1467 7 лет назад

You forgot to show the two PLASTIC, cam chain tensioner pads on the chain drives for operating the two cams, an obvious, weak link in TC engines, and which are wear items.

@randy1ization 6 лет назад

car manufacturers are doing the same dumb shit.

@Ram-re5em 6 лет назад

How they work is after about 3K to 5K they have to be rebuilt........Harley riders have to have a big budget to keep rebuilding these engines. Buy an Indian Motorcycle.

@7316bobe 6 лет назад

Indian is just another big turd by another name. Check the recalls on Indian motorcycles.

@alanwhiteside410 5 лет назад

MARTIN WOOLDRIDGE Strange I haven’t had any problems with mine and I have over 5K miles on it. I don’t think they have to be rebuilt. Your just being sarcastic! Lol

@M20AFKS 3 года назад

@@alanwhiteside410 my toyota have 297 000 km beat that

@James_from_I.E. 11 месяцев назад

How many have you rebuilt

@tlk0216 5 месяцев назад

Obsolete. Too bad the rear head doesn't get any air cooling it gets hot air.

@SparrowJacksonAirsoft 8 лет назад

So this video was made for 11 year olds in small engines class. Listen HD, I wanna know if your engines are still crap or if you changed them for the better. Clearly, this video doesn't do it.