Lathe tip: at 6:02 in the video your round stock is sticking out too far from the chuck to get a good surface. You have to either move the round stock in closer to the chuck or pilot hole drill the face of the piece and support it with the live center in the tailstock. Theres too much deflection with the material that far out of the chuck.
I feel like you should either make sure the power strokes are alternating. (When one engine is TDC, the other is at the top of the exhaust stroke). Or install a centrifical clutch on one of the engines.
You can't run two engines tied to one jackshaft directly. One engine will be fighting the other all the time unless you can get them synced together perfectly. Right now if one engine is running at 3600 rpms and the other is running at 3500 you will continue to break parts like the master chain links, shear keys, etc. To run two engines like that each should have a clutch which will allow the one to slip a little.
Word of advise. When turning longer pieces of metal, it's best to use a center in your tailstock. It will minimize deflection from the cutting tool. Without a center, especially on smaller diameter materials the material will push away from the cutter. You will end up with a taper or get chatter without a center.
Perfect time to be home sick and just relaxing on the couch. Thanks for the upload guys! Edit (I'm just a couple minutes in but I believe some boat throttle cables are push/pull style and might work better as a shifter cable)
Not only will the motors vibrate but the "transmission" you built is going to vibrate a lot. By cutting the rod and piston off that's going to throw it off bad. It's balanced to have both. And if it has a counter balance weight that's even more rotating mass. But its definitely a interesting build. Can't wait to see it dialed in.
The best solution would be to pull the crank entirely out and put just a shaft through there, but that might not be remotely easy. Another way would be to pull off all of the central crank, pin and throw parts, and bridge the 2 ends [one with the spline and one with the transmission gear] with one heavy piece of tube slipped over it. Then take that, put it in the lathe to clean off as much imperfection as possible, then put it on a set of balance pins and grind or tack just enough weight to get it to neutral balance.
"trans" vibrations probably arent too much of an issue. Engines being out of phase I believe is the largest issue.. and the keys falling out. Hose clamps work wonders with the keys i've found, often have issues with them falling out in swing-augers on farm.
@@NVMDSTEvil the trans vibrations is an major issue. That's one of the reasons the last set up vibrated so bad . You have an crank that is out of balance being driven so yes it will be an issue that along with the engines not being in sync, being two different displacements and having different hp's and having a clutch just adds to the vibration more .
@rushking19 that was my thoughts exactly. It's all balanced for a reason. But now by removing the connecting rod and piston then turning the engine at thousands of rpm. Something will give at some point.
Cool build, And this just shows why manufacturers build integral engine and trans missions. But I love the Mad Max like quality of this build. Thanks for sharing y'all's adventures!!!
At 23:00 to 23:05 Charles pulling in slide with the four wheeler to pick up Isaac and John’s chuckle behind the camera😂 All classic CarsandCameras fun👏
This is a awesome build, the jackshaft is a great idea. I wish there was a jackshaft that could kinda have a differential on it. So your engines didn't have to be so in sync.
Yes they do need to be in time both firing compression stroke at same time or 180 decrease out they basically have the crankshaft of both engine hooked together couple of good cart clutches would do away with All that shaking
@@clintonmcnair5447 that's what I was thinking, either centrifugal clutches or cvts instead of just going straight sprockets, would definitely help with the vibrations, or at least you would be able to start one engine at a time instead of having to do both at once.
@@clintonmcnair5447 the engines should not be in sync they need to be 180 degrees out of phase ti minimize vibrations because they will cancel out. one piston up while one goes down instead of both going up and down simultaneously. adding clutches is not going to affect the vibrations whatsoever
To much going on! I love the concept, drop the twin engines and go with a vtwin. With your experience with the 670 it would be a blast!!!! My buggy has a Chinese gearbox but there is no way I could have this much fun!!!!!!
My boy Ike is thee greatest backyard engine-"near" there ever was imo because everything ya'll build is either "nearly" running, "nearly" blown up or "nearly" perfect! I really just wanna hear him say "damnittt bobby" just once though hahahahaha
That Opel GT you have on the lift brings back good memories...it was my first car in 76' . The chasis is better than most people think ( don't change it ) . The motor is good and faster than any MG or Fiat . One flaw is the stock carburetor..It's junk ( go with a Weber ) . The transmission is okay unless you are a gearhead 16 year old like I was . Replace the rear exhaust pod . With the rubber hangers it's noisy and will break ..with a solid mount it will crack the exhaust and make tractor noises . I put my 73' through hell ( I was16 ) and ran a damn good race against a 280Z in the twisties . But he pulled me on the straight at the end . Buuuuut ...I caught back up when I pitched sideways on gradual left turn ( used a little inside gravel and drifted into the right lane in 4th gear ) yeehaaa! Then lifted all four wheels over a slightly lifted concrete bridge . Now ...here is what stumps me . I ( Dave ) was smiling ear to ear . The guy in the 280Z seemed a little preturbed and squeeled away !?? Then my friend Ray was yelling at me in an octave that made my ears hurt while trying to pull his fingers out of the dashboard! Huh...go figure , I had a great time... This was at a beautiful piece of twisty blacktop we called Sleepy Hollow outside of Louisville Kentucky. Good times..good times . PK
Trim off the ends on the live axle link, it’ll take out some more vibrations. Looks like they are a little uneven and vibrating the whole thing. Love how it’s coming along and love what you guys do!!
Glad to see you guys get a lathe. Lathes and mills, surface grinder,drill presses are cheap now that no one uses them. I am an expert manual machinist/ master well driller. Former occupations before retirement
I think it's time you call this thing the black pearl!!! Cuz its cursed and I believe you guys might be some great go cart pirates!!!! Let's go black pearl!!!!!
You need to balance the gy6 crankshaft it will cause extreme shake due to the piston and rod being cut off or add centrifugal clutches to your drive engines it will help also I've built off these gy6 transaxles a few times
I suggest nixxing the twin engine arrangement. and going with like a V twin, or a inline four, or a V four, or a snowmobile engine. those twin engines seem to be working against each other.
I feel like you guys could whack together a coupling for the cranks. So keyed on one side and attaches to where the pull start ties into the flywheel? Would that not be much better than throwing/snapping a chain once every 15 mins?
i hope you guys have the engines 180 degrees apart to minimize vibrations. also in previous videos you put tape on the lock rings to keep the set screw i hope you havent forgotten!
Just for fun, make a forward control four wheeler. Like, pretty much a standard quad bike, but you sit out in front between the front tyres. It would be a crazy experience
OK here's my idea for how to deal with starting a two-engine kart: Have the right engine connect to the jackshaft normally with a normal pull cord. Left engine will have no pull cord, It will connect to the jackshaft but with a clutch you'd control with a lever. With the lever down, Left engine would be disengaged. Push it up and it would connect the clutch and now left engine is connected. So to start, you'd put the lever into "disconnect", start the right engine. Once it's warmed up, slowly push the clutch lever up so that the right engine starts rotating the left engine. Lock that lever down and now you have two running motors!
Dual engines could be a big advantage for trail riding or for younger drivers. Where each engine connects to the first jack-shaft, if you could make something that would work similar to a pull start that only allows force in one direction, and free-wheels in the other, you would gain at least 2 improvements. The first would be that you could start the engines individually without overloading the pull start, and second, if 1 engine were to die out on the trail, the sprocket of the dead engine could free-wheel and the running engine would not have to drive the load of turning over the 2nd engine. That would allow you to still operate on only 1 engine and hopefully not leave you stranded. You'd also have the option of operating on either 1 of the engines at any given time, limiting power, say when a young driver was at the wheel.
Either two single cylinders, or a forged, bored and stroked v-twin...The mini dragster y'all built is an absolute work of art, but a fun offroader would be awesome with a crazy 50 HP v-twin that can do wheelies. It still takes ALOT of work to make two separate engines work in tandem.
Those duster cans don't contain much CO2. Most of it is a variant of Tetrafluoroethane. Depending on the duster, don't automatically assume that it's non-flamable.
With the way it's set up in the transmission, that thing'll be a true boneshaker, and nutshaker, and brainshaker, gotta swap the former crankshaft for a straight-shaft to stop it vibrating itself apart... :P
Even though it was a temporary setup "For testing purposes only" I agree that the cranks need to be synched dead solid good or clutches installed. The harmonics are breaking the parts. Definitely one of the funniest videos so far! :D Loved when Charles slipped in the mud. What is the model of Charles' Honda four wheeler?
the engines should be 180 out of phase not synced that way they can cancel eachothers vibrations out to an extent. adding the clutches wouldnt do anything
The two Different Engines are putting undue stress on everything it will just keep destroying its self until you put identical engines or just one Big one!
Lathe tip: at 6:02 in the video your round stock is sticking out too far from the chuck to get a good surface. You have to either move the round stock in closer to the chuck or pilot hole drill the face of the piece and support it with the live center in the tailstock. Theres too much deflection with the material that far out of the chuck.
2 to 3 times the diameter for material stick out as a general rule
Lots of moving parts in this build!
yeah its have but can it wheelie hahaha
I feel like you should either make sure the power strokes are alternating. (When one engine is TDC, the other is at the top of the exhaust stroke). Or install a centrifical clutch on one of the engines.
Put a hose clamp on either side of the sprocket so it can't move laterally and you'll be good to go. Set screws are............. screwy.
@@NubsWithGuns a clutch on one of the engines is actually a really good idea.
Even the parts that are not meant to move
That sliding park job by Charles on the quad was epic! 👍😎👍
Its his quad. Doing what one does in slick mud as they should.
You can't run two engines tied to one jackshaft directly. One engine will be fighting the other all the time unless you can get them synced together perfectly. Right now if one engine is running at 3600 rpms and the other is running at 3500 you will continue to break parts like the master chain links, shear keys, etc. To run two engines like that each should have a clutch which will allow the one to slip a little.
Pretty sure each motor still has the centrifugal clutch on them. The last time they did this they left them on .
except they cant spin at different rpm.
@@jasongardner9127 re-watch the video there's no clutch
@@jasongardner9127 7:29 no clutches on engines
Yes they think you double hp!
Maybe torque but not horse power....
11:43 - Zip Ties and coat hangers. Quintessential C&C. And we love it !!! 👍👍🤣🤣
"This feels kinda natural..."
I'll say that I agree with that statement
Had me dying.
That should be a sticker ,its not stupid if if works
@@michaelmays9292 I’d buy that 🤣
Word of advise. When turning longer pieces of metal, it's best to use a center in your tailstock. It will minimize deflection from the cutting tool. Without a center, especially on smaller diameter materials the material will push away from the cutter. You will end up with a taper or get chatter without a center.
23:04 that was a satisfyingly executed slide right there
The level of jankyness is what makes this video so awesome.
Perfect time to be home sick and just relaxing on the couch. Thanks for the upload guys! Edit (I'm just a couple minutes in but I believe some boat throttle cables are push/pull style and might work better as a shifter cable)
Hope you recover and feel better soon.
Thinking the exact same thing when they left the shop on the 1st run.
Same here; laid up sick with my 2nd round of COVID watching this episode!!
not gonna lie the scenes when charles is shooting by himself are some of the most entertaining lol
Not only will the motors vibrate but the "transmission" you built is going to vibrate a lot. By cutting the rod and piston off that's going to throw it off bad. It's balanced to have both. And if it has a counter balance weight that's even more rotating mass. But its definitely a interesting build. Can't wait to see it dialed in.
The best solution would be to pull the crank entirely out and put just a shaft through there, but that might not be remotely easy.
Another way would be to pull off all of the central crank, pin and throw parts, and bridge the 2 ends [one with the spline and one with the transmission gear] with one heavy piece of tube slipped over it.
Then take that, put it in the lathe to clean off as much imperfection as possible, then put it on a set of balance pins and grind or tack just enough weight to get it to neutral balance.
"trans" vibrations probably arent too much of an issue. Engines being out of phase I believe is the largest issue.. and the keys falling out. Hose clamps work wonders with the keys i've found, often have issues with them falling out in swing-augers on farm.
@@NVMDSTEvil the trans vibrations is an major issue. That's one of the reasons the last set up vibrated so bad . You have an crank that is out of balance being driven so yes it will be an issue that along with the engines not being in sync, being two different displacements and having different hp's and having a clutch just adds to the vibration more .
@rushking19 that was my thoughts exactly. It's all balanced for a reason. But now by removing the connecting rod and piston then turning the engine at thousands of rpm. Something will give at some point.
the piston being removed would reduce vibration but since the rod was removed the crank is no longer balanced
Cool build, And this just shows why manufacturers build integral engine and trans missions. But I love the Mad Max like quality of this build.
Thanks for sharing y'all's adventures!!!
At 23:00 to 23:05 Charles pulling in slide with the four wheeler to pick up Isaac and John’s chuckle behind the camera😂 All classic CarsandCameras fun👏
This is a awesome build, the jackshaft is a great idea. I wish there was a jackshaft that could kinda have a differential on it. So your engines didn't have to be so in sync.
Yes they do need to be in time both firing compression stroke at same time or 180 decrease out they basically have the crankshaft of both engine hooked together couple of good cart clutches would do away with All that shaking
@@clintonmcnair5447 that's what I was thinking, either centrifugal clutches or cvts instead of just going straight sprockets, would definitely help with the vibrations, or at least you would be able to start one engine at a time instead of having to do both at once.
@@jrkbgk1111 centrifugal be way to go don't really need torque converter with the 4wheeler transmission
@@clintonmcnair5447 the engines should not be in sync they need to be 180 degrees out of phase ti minimize vibrations because they will cancel out. one piston up while one goes down instead of both going up and down simultaneously. adding clutches is not going to affect the vibrations whatsoever
@@jrkbgk1111 adding clutches is not going to change anything with the vibrations
Would LOVE to see 4wheel drive!!😁✌️💚
That slide with the quad was perfect 😂😂😂
Charles is a hoot!!!
Ike’s whole demeanor in the opening scene is just perfect and his whole transmission comment is golden! Lol
You guys have such great builds and ideas.Keep em rolling rolling.
To much going on! I love the concept, drop the twin engines and go with a vtwin. With your experience with the 670 it would be a blast!!!! My buggy has a Chinese gearbox but there is no way I could have this much fun!!!!!!
This is true carsandcameras jankery. And I love it
My boy Ike is thee greatest backyard engine-"near" there ever was imo because everything ya'll build is either "nearly" running, "nearly" blown up or "nearly" perfect! I really just wanna hear him say "damnittt bobby" just once though hahahahaha
Cars and cameras video for the drive home from work? Yes please!
I come for the jank and stay for the Charles lol
Him sliding in on the 4 wheeler cracked me up!!!!!
hose clamps work good for holding keys in
9:36 that is an interesting concept 😂
That must be one of the most complex projects you have built. Looks good. Can we see more of the Opel Gt.
We’re waiting to post until we have a bunch done, it’s turning out AWESOME so far though
Cool build can't wait to see it in full swing
That Opel GT you have on the lift brings back good memories...it was my first car in 76' . The chasis is better than most people think ( don't change it ) . The motor is good and faster than any MG or Fiat . One flaw is the stock carburetor..It's junk ( go with a Weber ) . The transmission is okay unless you are a gearhead 16 year old like I was . Replace the rear exhaust pod . With the rubber hangers it's noisy and will break ..with a solid mount it will crack the exhaust and make tractor noises . I put my 73' through hell ( I was16 ) and ran a damn good race against a 280Z in the twisties . But he pulled me on the straight at the end . Buuuuut ...I caught back up when I pitched sideways on gradual left turn ( used a little inside gravel and drifted into the right lane in 4th gear ) yeehaaa! Then lifted all four wheels over a slightly lifted concrete bridge . Now ...here is what stumps me . I ( Dave ) was smiling ear to ear . The guy in the 280Z seemed a little preturbed and squeeled away !?? Then my friend Ray was yelling at me in an octave that made my ears hurt while trying to pull his fingers out of the dashboard! Huh...go figure , I had a great time... This was at a beautiful piece of twisty blacktop we called Sleepy Hollow outside of Louisville Kentucky. Good times..good times . PK
That thing is super sick!!!
you guys seem more bonded, like a brotherhood now. more than before for some reason. hope all stays well
Yall need to ditch the 2 engines and go for a built 670 build again!!!!.would be EPIC
Keep diggin guys.....she's lookin good !!
Trim off the ends on the live axle link, it’ll take out some more vibrations. Looks like they are a little uneven and vibrating the whole thing. Love how it’s coming along and love what you guys do!!
Glad to see you guys get a lathe. Lathes and mills, surface grinder,drill presses are cheap now that no one uses them. I am an expert manual machinist/ master well driller. Former occupations before retirement
Once yin's guys finally get all the kinks out of the spleen machine. It will all come together and be super cool. Keep up the great work yin's guys
16:00 I mean, that indent is exactly where it's supposed to hook, it's not exactly intended to have a clamping load but it's honestly mint.
Blue Locktite! Good stuff as always.
The reason I liked the video is because that sick four wheeler drift park 23:00
Love your videos awesome content❤
I think it's time you call this thing the black pearl!!! Cuz its cursed and I believe you guys might be some great go cart pirates!!!! Let's go black pearl!!!!!
You need to balance the gy6 crankshaft it will cause extreme shake due to the piston and rod being cut off or add centrifugal clutches to your drive engines it will help also I've built off these gy6 transaxles a few times
how would adding those clutches change anything? its not going to help vibration its redundant they already have a clutch
@@Videoswithsoarin they will allow the engines to self sync the offset balance of the rotating assemblies if the drive engines themselves
Always amazing content guys!! Thanks for the inspiration!!
Best vid in a while , it’s funny whatching y’all mess around
@15:56 IKE! How did you miss an opportunity to say "For testin' purposes only"?
😂😂😂
Guna try ya, looks like it should be a lot of fun when you get it worked out, all the best to yous and your loved ones
Oh man, this is a sweet build guys. " We don't even know if the transmission works" haha.. Classic.
Lol! This feels kind of natural! That one will be around for a long time. Hilarious!
I suggest nixxing the twin engine arrangement. and going with like a V twin, or a inline four, or a V four, or a snowmobile engine. those twin engines seem to be working against each other.
Great job guys, very entertaining and fun
yall should build something like this but with a fully functional motor, like a working running 400/500cc atv engine
I feel like you guys could whack together a coupling for the cranks. So keyed on one side and attaches to where the pull start ties into the flywheel? Would that not be much better than throwing/snapping a chain once every 15 mins?
Best moment
..Charles's Nad splitting slip n fall
“This feels natural”. John did in fact NOT cut that out. 😂😂😂😂
Ohhhh dear 😂well said Charles
as always great stuff guys thanks
i hope you guys have the engines 180 degrees apart to minimize vibrations. also in previous videos you put tape on the lock rings to keep the set screw i hope you havent forgotten!
What a crazy build😄👍
Love the artsy fartsy shots. Ya'll used to do that back in the day, then got away from it. Hope it gets a smile from the algorithm Gods this time.
Loving this series, you’re cranking out the videos!
One of the funniest ones in a while🤣
Just for fun, make a forward control four wheeler.
Like, pretty much a standard quad bike, but you sit out in front between the front tyres. It would be a crazy experience
might be good to put a twin belt drive on the primary to smooth things up . those chain's wont last too much lash when the engine fire
You guys are having way too much fun it definitely needs some rear fenders to keep the mud spray better controlled
The twin go-cart build is a riot so far, but the Opel GT has me intrigued, especially since you have that wrecked Miata nearby.
Classic carsandcameras it will be fine moments
OK here's my idea for how to deal with starting a two-engine kart:
Have the right engine connect to the jackshaft normally with a normal pull cord.
Left engine will have no pull cord, It will connect to the jackshaft but with a clutch you'd control with a lever. With the lever down, Left engine would be disengaged. Push it up and it would connect the clutch and now left engine is connected.
So to start, you'd put the lever into "disconnect", start the right engine. Once it's warmed up, slowly push the clutch lever up so that the right engine starts rotating the left engine. Lock that lever down and now you have two running motors!
Keep the dolly as is,it will come in handy later down the road.This is going to be an awesome build!!! Provided it doesn't eat it self!!! LoL 🤣🤣🤣🤣
You guys are awesome!
It would be a neat project to build a dump trailer out of Ike’s
auction purchase. Definitely something you’d use on the farm.
Yes A trike ! Front Wheel drive one 👌
Friggin hilarious!
Dual engines could be a big advantage for trail riding or for younger drivers. Where each engine connects to the first jack-shaft, if you could make something that would work similar to a pull start that only allows force in one direction, and free-wheels in the other, you would gain at least 2 improvements. The first would be that you could start the engines individually without overloading the pull start, and second, if 1 engine were to die out on the trail, the sprocket of the dead engine could free-wheel and the running engine would not have to drive the load of turning over the 2nd engine. That would allow you to still operate on only 1 engine and hopefully not leave you stranded. You'd also have the option of operating on either 1 of the engines at any given time, limiting power, say when a young driver was at the wheel.
Use short set screws. That way you can install a set screw on top of a set screw. One stops the other from being able to back out
Instead of pre-Charles, it should be BCE - Before Charles Era.
Either two single cylinders, or a forged, bored and stroked v-twin...The mini dragster y'all built is an absolute work of art, but a fun offroader would be awesome with a crazy 50 HP v-twin that can do wheelies. It still takes ALOT of work to make two separate engines work in tandem.
Those duster cans don't contain much CO2. Most of it is a variant of Tetrafluoroethane. Depending on the duster, don't automatically assume that it's non-flamable.
when johnny is away the boys gonna play..... 2X4 shifter..... with the wood adapter kit LOL
Dual electric start setting up definitely a must look like a shoulder killer 👍👌✌️🏍️💯🍻
You had the Old Man laughing again. Love you guys 🛵🧔💝💝💝
The maxi bike idea was cool. Kind like an extreme Rokon. They have some big tires/wheels but those would be massive on a bike.
Great viedo. Would love to see the maximum bike 🏍 built out of that old trailer 😀
I can't wait to see this thing rip. Yall are getting so close. I think it's gonna be a monster on the grand prix.
With the way it's set up in the transmission, that thing'll be a true boneshaker, and nutshaker, and brainshaker, gotta swap the former crankshaft for a straight-shaft to stop it vibrating itself apart... :P
Natural😏
Love these videos
Great job Charles 👍👍
Starting 2 engines at once
Somebody owes you a day at the massage parlor. 😆
This is the chariot of the damned and i love it😂
You need the right "T" nut on your cross slide on your lathe, if you take a big bit on something your tool post may jump off on you.
Nice this will be a fun build have fun guy's
Even though it was a temporary setup "For testing purposes only" I agree that the cranks need to be synched dead solid good or clutches installed. The harmonics are breaking the parts. Definitely one of the funniest videos so far! :D Loved when Charles slipped in the mud. What is the model of Charles' Honda four wheeler?
the engines should be 180 out of phase not synced that way they can cancel eachothers vibrations out to an extent. adding the clutches wouldnt do anything
Deals natural... that's funny. Build on gentlemen.😅
Looks like something interesting is going on with the Opal! 👌👌
MAXIBIKE WOOOOOO!
You ain't on fire Ricky Bobby!
We have. Slim Shady , Rob Schneider and Kelly Slater with hair obviously working on Go karts i know its 2023 yeeeeee
The two Different Engines are putting undue stress on everything it will just keep destroying its self until you put identical engines or just one Big one!
Great Build!. Twin digital RPM Gauge would go well.
Ike and Charles are twins from different moms
Love you guys, would love to see a mini jeep build video!