So rad to see the old engineering of this motor like the screw in cam bushings/bearings in the case, what a trip. Thanks for showing us behind the scenes
Any particular reason why in the beginning and most of the video hes not using any oil or grease or assembly lube or anything like that? sorry to ask you but seems like he doesn't answer comments.
@@dntlss You know, I really couldn't tell you for certain, but I'll try to make an educated guess here for you. I'd probably guess that assembly lube wasn't too common back in 1928, so using it today is kinda moot. I also believe that this particular engine gets its oil from a hand pump, so I don't know how important assembly lube is gonna be in preventing wear and tear when the engine itself doesn't have a constant circulating oil supply. You could lube the thing up, but it's probably not gonna stay lubed for long, and the oil that needs to get into oil passages and specific crevices might be blocked by gooey assembly lube. One other thing you might research was that in 1929 they introduced a throttle-controlled oil pump, which i have no context for, other than the names and an old article claiming that the throttle-controlled oil pump increased the oiling efficiency and overall health of the engine by a ton. So there ya go, hope my guesses might shine some light on the reasoning behind him not lubing it up like you would a 50s/60s/70s engine found in cars
@@dntlss Read my other guesses first, but here's an alternate theory: he assembled the entire motor for clearance purposes, tore it down off camera, lubed everything perfectly and reassembled it for the final part of the video where he fires it up. Not really sure.
Ah the good old days when motors made a small enough amount of horsepower that you could drill holes in the connecting rods to reduce reciprocating weight. Absolutely fascinating. Loved the shaker twin video at the end, hold on tight or it'll be down the street by itself ... it craves to motivate.
One of my Antique Cycle buds has a 1913 Harley-Davidson (First H-D) ALKY (pure methanol) burning board-track racer! One speed, no brakes, no throttle, a kill switch that cuts the magneto for "speed control". 119 MPH Laps on the 3/8th mile dirt track at the Creek County Fairgrounds on BICYCLE TYRES pumped-up to 90 PSI (white Firestone's). Total loss lubrication of 50 weight CASTER BEAN oil. Every 5-6th lap, reach between your legs and manual pump the oil pump until it smokes a puff. Think about Glenn Curtis-he bought his frames from brothers in the bicycle trade near Dayton, OH and put his engines on WRIGHT BROS. frames. Now put down an 1/8th mile track of boards, put 40 riders who kicked, punched, spit on each other on a 25 foot wide track at 110+ MPH. It was called "Murderdrome" rather than Motodrome. Many of them became WWI Aviators. I'm working on a street 1916 "ACE" 52* (Bosch Magneto) Vee-twin 1065 cc three speed tranny. Acetylene headlight and all! By 1925, there were at least THREE street motorcycle manufacturers for each letter of the alphabet. EXAMPLE: A: Ace, American Flyer, American Eagle, American Flag, Ace-Hi, All-Bee, A-EZE and 12 more. The "Panic of 1922" killed most brands along with the Model T. When dirt roads turned to mud-pits, an automobile had some advantages. In 1925 there were about 10,000 miles of paved ('improved" that could mean gravel) "highways".
Exactly, and it worked. Almost everyday I'm dealing with crappy drawings created in state of the art CAD software. Many today's engineers don't have idea how to make stuff, all what they do are beautiful drawings...
True, it was pure engineering, but let's not forget that at that time, dozens of models were made from clay, and they kept testing until they reached a good result, after which they made the molds for casting. Don't think that all the geometry of the crankcase was done with paper and pen and calculated with double integral...
Not only is it amazing to see what the human mind is capable of designing, but also to see the affect(s) it's had on society. Unfortunately the human mind is also capable of wanting to influence others to accept as normal, what the conscience intuitively defines as abnormal-welcome to Americas slow decline.
Housing covers, cylinders, flanges etc. have to be tight crosswise in any case, otherwise internal tensions and leaking follows! A good educated and teached mechanic has to know that!! Greetings from Germany!
Look at those cam lobes!!! I've seen some asymmetry before but never such an extreme difference between intake and closing ramps. That's just crazy...but hey...it worked!!
Forget putting this on a bike, it needs to be powering a go-kart! I can close my eyes and hear that song behind me as me and my kart break out from under the tree canopy and head into the open country on the IOM Mountain Course.
yes, its odd, but two things: modern oil is light years ahead of 1920's technology, and the clearances on those old air-cooled engines was pretty was generous to start with. that said, yeah I woulda put a few drops here and there.
You don't ever want it to stall out and quit, that will leave you stranded by the road. Maybe set your idle screw higher. Not about the sound, or even about the hp (well, if it was used for racing, then it is), it's about getting you there and back without issue or headaches.
@@redtobertshateshandles hard enough to keep an old engine running as it is. once you get it started you don't want it conking out on you all the time. it really swcks if your battery is dead, you have to kickstart or push start it again, or... your compression release is broken. I deal with all three all the time on the farm with this old junk.
@@johnarnold893 Fair enough, but a dead battery is huge concern on my bikes that are too heavy to push start and jump on. It will leave you stranded and phwcked. I can push start light cars on flat paved ground and jump in the seat and throw them into 2nd and start them (done that more times than I want to count), but pushing a heavy motorcycle to a running start and swinging a leg over and kicking it in gear without dropping it is beyond my stamina and skill level. Don't want no kickstart motorcycle ever again, you'll wear out your leg or break it trying to get that thing started.
if you need parts for it, check with Reiman Harley Davidson in Kewanee, Illinois. Old Hank Reiman (not his son Roger) was an ace Harley tuner way way back.
I have the same engine from my granfather's barn in Wisconsin... it had been sitting there since around WW2... I had no idea it was worth that much. I'm thinking I'll sell it.
I live in Milwaukee and have spent many years in the Northwoods during the summer... I always wonder what kind of mysteries lie in those old barns as I drive past them every year.
Interesting watching this after Keenan Tatro's videos; despite the difference in time period this still looks like the work of Harley Davidson when compared to later twins.
@@localenterprisebroadcastin5971 The torque wrench wasn't even patented until 1931 and it was years until they were being manufactured for general use.
It may have been initially built with cast iron pistons?? Those modern ones had large domes and ring tech that would be far more advanced than the original ones. I'd imagine this is a "manual squirter" oiling system as I didn't see an oil pump during assy. Haven't bikes come a long way from here.
I was really surprised to see that the crankshaft didn't appear to be balanced, is this the case? I could see some holes drilled out ( 01:39 ) on the _opposite_ side from the rods though!?!? I guess it could be milled out on the inner sides but it doesn't really looks like it.
No sealer on the case halves? No assembly lube on moving parts? You don't like the big piston clips? Are those PEEK intake seals? The JH was NOT a factory racing engine and way more than 10 exist. It was the 61CI version of the famous JDH 74. Sold to the general public in dealerships.
1: there is sealer on the case halves. I always smear a very thin layer of black gasket sealant when assembling. Not sure if that made this film or not. Originally they had no sealer or gasket whatsoever 🤷♂️ 2: assembly lube is not necessary if you are planning on running an engine soon after rebuilding - which I did. 60 wt oil is quite thick at room temperature anyways. 3: no, I don’t like them at all (if you’re referring to the clips I used on these pistons) 😂 but they work great. More than one way to skin a cat as they say… 4: yes, those are PEEK seals. The brass originals can work great as well, but PEEK seems to be superior 5: I never said JH was a factory race engine - It’s not. But a 1928 JH is identical to an FH race engine in many technical aspects down to the bronze cam shafts. The only real differences (aside from the VIN number & casting numbers) between a JH and a direct action FH engine are the cam grind profiles, the lifter blocks, the combustion chamber shapes, and the flywheels. “Way more than 10 exist” is a stretch unless you know of a pile of them that no one else knows about. Quite a few have come out of the woodwork since this video was posted, but there seem to be less than 20 known still. Always looking for more!
I owned one of those JDHs back in the 1970s, completely restored, sold it way to cheap to invest in equipment form machine shop. I see things on that engine that are not quite right.
That crankshaft must have some mass to it! I guess with that engine the weight must be needed to smooth out the firing impulses or help with vibration and counter balance from all the reciprocating mass being on the same side of the crank, not good primary balance like on a inline twin.
I liked this, but I was hoping this was the engine with the atmospheric automatic intake (check) valves, so it only had a cam for the exhausts. What is that engine called??
Such a beautiful piece of motorsport history. it's so cool to see an old dog spit flames again!
dad sold my bike... I was named after a 1951 panhead... running all those years :-)
So rad to see the old engineering of this motor like the screw in cam bushings/bearings in the case, what a trip. Thanks for showing us behind the scenes
Any particular reason why in the beginning and most of the video hes not using any oil or grease or assembly lube or anything like that? sorry to ask you but seems like he doesn't answer comments.
@@dntlss You know, I really couldn't tell you for certain, but I'll try to make an educated guess here for you. I'd probably guess that assembly lube wasn't too common back in 1928, so using it today is kinda moot. I also believe that this particular engine gets its oil from a hand pump, so I don't know how important assembly lube is gonna be in preventing wear and tear when the engine itself doesn't have a constant circulating oil supply. You could lube the thing up, but it's probably not gonna stay lubed for long, and the oil that needs to get into oil passages and specific crevices might be blocked by gooey assembly lube. One other thing you might research was that in 1929 they introduced a throttle-controlled oil pump, which i have no context for, other than the names and an old article claiming that the throttle-controlled oil pump increased the oiling efficiency and overall health of the engine by a ton. So there ya go, hope my guesses might shine some light on the reasoning behind him not lubing it up like you would a 50s/60s/70s engine found in cars
@@dntlss Read my other guesses first, but here's an alternate theory: he assembled the entire motor for clearance purposes, tore it down off camera, lubed everything perfectly and reassembled it for the final part of the video where he fires it up. Not really sure.
Seeing that thing light and then those flames. The tone is perfection.
I really enjoyed watching your video. Thanks so much for posting
I just wanted to say thank you for the video on how to access the subharmonic register. Singing basso profundo is freaking fun.
Ah the good old days when motors made a small enough amount of horsepower that you could drill holes in the connecting rods to reduce reciprocating weight. Absolutely fascinating. Loved the shaker twin video at the end, hold on tight or it'll be down the street by itself ... it craves to motivate.
Or you could just weigh and balance them
Nice! Thanks for putting this together!
One of my Antique Cycle buds has a 1913 Harley-Davidson (First H-D) ALKY (pure methanol) burning board-track racer! One speed, no brakes, no throttle, a kill switch that cuts the magneto for "speed control". 119 MPH Laps on the 3/8th mile dirt track at the Creek County Fairgrounds on BICYCLE TYRES pumped-up to 90 PSI (white Firestone's). Total loss lubrication of 50 weight CASTER BEAN oil. Every 5-6th lap, reach between your legs and manual pump the oil pump until it smokes a puff. Think about Glenn Curtis-he bought his frames from brothers in the bicycle trade near Dayton, OH and put his engines on WRIGHT BROS. frames. Now put down an 1/8th mile track of boards, put 40 riders who kicked, punched, spit on each other on a 25 foot wide track at 110+ MPH. It was called "Murderdrome" rather than Motodrome. Many of them became WWI Aviators. I'm working on a street 1916 "ACE" 52* (Bosch Magneto) Vee-twin 1065 cc three speed tranny. Acetylene headlight and all! By 1925, there were at least THREE street motorcycle manufacturers for each letter of the alphabet. EXAMPLE: A: Ace, American Flyer, American Eagle, American Flag, Ace-Hi, All-Bee, A-EZE and 12 more. The "Panic of 1922" killed most brands along with the Model T. When dirt roads turned to mud-pits, an automobile had some advantages. In 1925 there were about 10,000 miles of paved ('improved" that could mean gravel) "highways".
119 mph 😂
Amazing what the human mind is capable of designing. This was all drawn on paper and then assembled in a barn and then put into production. Amazing.
Exactly, and it worked. Almost everyday I'm dealing with crappy drawings created in state of the art CAD software. Many today's engineers don't have idea how to make stuff, all what they do are beautiful drawings...
True, it was pure engineering, but let's not forget that at that time, dozens of models were made from clay, and they kept testing until they reached a good result, after which they made the molds for casting. Don't think that all the geometry of the crankcase was done with paper and pen and calculated with double integral...
Not only is it amazing to see what the human mind is capable of designing, but also to see the affect(s) it's had on society. Unfortunately the human mind is also capable of wanting to influence others to accept as normal, what the conscience intuitively defines as abnormal-welcome to Americas slow decline.
Yeah I know...hard to believe a human would actually design an engine 100 years ago and still use the same blueprints to build them now....
That old iron running gave me goosebumps. She sounds beautiful.
me too ! loved it !
Aluminum.
It's running great, it's leaking oil..🤣
I loved seeing slotted head machine screws used throughout. The old factory spanner wrenches were cool to have as part of the wrench set.
That’s some real Americana there . Cool old stuff. Twin cam too - ✊🏻👍👌
It is amazing to think that Harley got the twin cam right the first time around....
Housing covers, cylinders, flanges etc. have to be tight crosswise in any case, otherwise internal tensions and leaking follows! A good educated and teached mechanic has to know that!!
Greetings from Germany!
Absolutely loved coming along for the build, have a blessed week my friend.
Wow, the bass tones out of that thing! Sounds like a combination of fart bass and lip buzz. Now I just need to hear a beat over it.
Impressive watching you assemble that entire motor using $14 worth of handtools. 👍
Great video! Thank you.
13,39м, возле левой выхлопной трубы видно пролетающий болт, открутился от вибрации. Спасибо за интересную работу по сборке и запуску двигателя.
Look at those cam lobes!!! I've seen some asymmetry before but never such an extreme difference between intake and closing ramps. That's just crazy...but hey...it worked!!
He made that look easy. Great job good to see these old motors come alive.
Great video..Thanks for no music and thanks for running the engine...Great job...
yeah no crappy music just natural sound
That’s awesome ! I love it. I just love stuff like that , it has so much history. Thank you so much for sharing. 😊
Forget putting this on a bike, it needs to be powering a go-kart! I can close my eyes and hear that song behind me as me and my kart break out from under the tree canopy and head into the open country on the IOM Mountain Course.
What a beautiful exhaust sound. You know its a Harley.
Yeah because they all sound like shit
My father had an old '74 when he was in high school in 1939, He was caught doing donuts in the parking lot, and had to eat his lunch in the office.
And he didnt come back and kill the principal the next day,lol, he knew he was caught and took it like a adult unlike today.
First t time I have ever seen an engine assembled without prelude on pistons/ cylinders etc.
yes, its odd, but two things: modern oil is light years ahead of 1920's technology, and the clearances on those old air-cooled engines was pretty was generous to start with. that said, yeah I woulda put a few drops here and there.
You don't ever want it to stall out and quit, that will leave you stranded by the road.
Maybe set your idle screw higher.
Not about the sound, or even about the hp (well, if it was used for racing, then it is), it's about getting you there and back without issue or headaches.
An old race tuner I worked with often the first thing he'd do was turn up the idle.
And on a race two stroke turn it right off.
@@redtobertshateshandles hard enough to keep an old engine running as it is. once you get it started you don't want it conking out on you all the time. it really swcks if your battery is dead, you have to kickstart or push start it again, or... your compression release is broken. I deal with all three all the time on the farm with this old junk.
@@choppergirl Battery, hah, what battery. It's a race engine and uses a mag for spark.
@@johnarnold893 Fair enough, but a dead battery is huge concern on my bikes that are too heavy to push start and jump on. It will leave you stranded and phwcked.
I can push start light cars on flat paved ground and jump in the seat and throw them into 2nd and start them (done that more times than I want to count), but pushing a heavy motorcycle to a running start and swinging a leg over and kicking it in gear without dropping it is beyond my stamina and skill level.
Don't want no kickstart motorcycle ever again, you'll wear out your leg or break it trying to get that thing started.
if you need parts for it, check with Reiman Harley Davidson in Kewanee, Illinois. Old Hank Reiman (not his son Roger) was an ace Harley tuner way way back.
Best I seen for a very long time, really Love this engine!!!
...got a lovely tik tik to it....wonderful! Like to see it in its frame and under load..cheers from nz.
geiler Sound,.. geiler als meine Latte hart.
hervorragende Arbeit wurde hier geleistet.
beneidenswert.💪💪
MEINE EHRE HEIẞT TREUE!!! ☠️⚡⚡☠️
This video is the perfect asmr for men.
I have the same engine from my granfather's barn in Wisconsin... it had been sitting there since around WW2... I had no idea it was worth that much. I'm thinking I'll sell it.
I live in Milwaukee and have spent many years in the Northwoods during the summer... I always wonder what kind of mysteries lie in those old barns as I drive past them every year.
Unbelievable sound...greetings from Bulgaria 😁
Cool old engine! Sounds good.
The starting motor was a good idea.
Great video. I just sold a 29 D 45 cu in, the first flathead twin. Unfortunately it wasn't complete & only worth a fraction of this one 😢
Wow an 95 Year old heart brought to life !!!
Interesting watching this after Keenan Tatro's videos; despite the difference in time period this still looks like the work of Harley Davidson when compared to later twins.
What ?
side valve inlet and over head exhaust = wow that is some kind of exhaust valve assembly = 2 cams = thank you for assembly .
Somehow thats upside down,,its overhead inlet from carb,,and side valve exhaust to down pipes,,😊😊
Fantastic thanks for doing a video... do you have drawings for this engine by any chance?
WOW !!!
Super sound ❤❤❤❤❤
Thank YOU!
he is back les goooo
Mix marvel mystery oil in fuel helps lubricant everything 👍😊
Why are you not adding assembly lubrication?🤔🤔 Did you grease or lubricate the lifters? How often would you lubricate up the lifters.
Not to mention not torquing anything 😂
@@localenterprisebroadcastin5971 The torque wrench wasn't even patented until 1931 and it was years until they were being manufactured for general use.
@@johnarnold893 The original torque wrench was invented by Conrad Bahr in 1918…swing and a miss bud
Dude this is so out of left field for this channel haha! Love it!
Beautiful engine.i wonder who was the genius who designed and b built the engine
Pretty groovy man. Real Groovy❗🤪👍
It may have been initially built with cast iron pistons?? Those modern ones had large domes and ring tech that would be far more advanced than the original ones. I'd imagine this is a "manual squirter" oiling system as I didn't see an oil pump during assy. Haven't bikes come a long way from here.
Holy f*** this is right up my ally 😂😂
I can actually restore one of these.😊😊
such cool piece of history breathing fire again
Very nice work!
You should consider uploading a CAD PDF so it could be 3D printed... would be interesting to see what people could do with it.
Great job. Very good video.
God Bless Milwaukee! And yes, I was born and raised here! 11-14-1963.
Such a beautiful engine.
That was really fun!
I was really surprised to see that the crankshaft didn't appear to be balanced, is this the case? I could see some holes drilled out ( 01:39 ) on the _opposite_ side from the rods though!?!? I guess it could be milled out on the inner sides but it doesn't really looks like it.
Man that thing is salty!! Needs a nice bobber to call home!
This is amazing!!
No sealer on the case halves? No assembly lube on moving parts? You don't like the big piston clips? Are those PEEK intake seals? The JH was NOT a factory racing engine and way more than 10 exist. It was the 61CI version of the famous JDH 74. Sold to the general public in dealerships.
1920's Harley 2 cam racing engines were stamped FH FHAC FHAD . Look up those.
so this is lies?
1: there is sealer on the case halves. I always smear a very thin layer of black gasket sealant when assembling. Not sure if that made this film or not. Originally they had no sealer or gasket whatsoever 🤷♂️
2: assembly lube is not necessary if you are planning on running an engine soon after rebuilding - which I did. 60 wt oil is quite thick at room temperature anyways.
3: no, I don’t like them at all (if you’re referring to the clips I used on these pistons) 😂 but they work great. More than one way to skin a cat as they say…
4: yes, those are PEEK seals. The brass originals can work great as well, but PEEK seems to be superior
5: I never said JH was a factory race engine - It’s not. But a 1928 JH is identical to an FH race engine in many technical aspects down to the bronze cam shafts. The only real differences (aside from the VIN number & casting numbers) between a JH and a direct action FH engine are the cam grind profiles, the lifter blocks, the combustion chamber shapes, and the flywheels.
“Way more than 10 exist” is a stretch unless you know of a pile of them that no one else knows about. Quite a few have come out of the woodwork since this video was posted, but there seem to be less than 20 known still. Always looking for more!
How Do you know if there is oil in a harley, its dripping under.. If not NO oil.😄
@davidlarson3905 how come few exist?
Nice job very well 👏 done😊
That is so cool. Was there a gasket I missed on part of the install?
The good news is it can be rebuilt,the bad news is its gonna break down soon, its a Harley lol...
'tis a thing of beauty.
but the cam spindle mounting plate being secured by bolts from the inside gives me the yips.
Not as much as dodgy cam chain tensioners on later Harley engines...
I owned one of those JDHs back in the 1970s, completely restored, sold it way to cheap to invest in equipment form machine shop. I see things on that engine that are not quite right.
That crankshaft must have some mass to it! I guess with that engine the weight must be needed to smooth out the firing impulses or help with vibration and counter balance from all the reciprocating mass being on the same side of the crank, not good primary balance like on a inline twin.
Great Job!
Damn.....Thats awesome
I bet those sparks plugs are not easy to find.
Missed you
Bet it still leaks like the new ones!🤔
Beautiful!
Very good!
well done sir !
Nice job...
Dragon Man would be impressed👍🏻
Incredible🎉
Sick video
Cool beans what is the displacement for this engine?
And an HD engine hasn't moved on from this in 2024. Great tractor engines.
Индейцы ! Хочу увидеть вас в седле ! Это реальная свобода !!! 🦅 Промывает мозги сильнее виски .😊
I liked this, but I was hoping this was the engine with the atmospheric automatic intake (check) valves, so it only had a cam for the exhausts. What is that engine called??
They are atmospheric Intake valves !
멋진 예술작품입니다 물론 사운드까지
I'm surprised you didn't use assembly lube on all the rotating internal parts and gears.
Enjoyable video.
Good work
i dont know whats worst the time to find original parts, or the time itll take to make to parts you couldn't find.
Very cool something interesting I just turned it on let's see what happens
Sounds like a Hardly!
Hey thanks for the video, it will help a lot when I get an F-Head.
Did you happen to obtain 3D data for the engine parts when it was apart?
Que som mais lindo!!!!
Were there holes in the connecting rods from the factory?
Where abouts are you guys? I have a 1921J in bits that l need to make some decisions about.
They were trying every type of valve layout and cylinder head.
Ik zie maar een (bijzondere) klep per cilinder, hoe werkt deze dan?
Оце справжній олд скулл,моя повага хлопцям...
i wonder why the making of this engine was stopped.! this was the king engine of the road
Probably cause it was too simple.