S3E 36 & 37: We install a Comet 94C clutch on the 670 cc predator powered Renault R10

[@canwenot573]

I'm perpetually amazed by all the hard work and ingenuity you put into these projects. I'm glad to see I'm not the only one who appreciates your efforts. To do all these completely custom modifications while filming and editing videos is no small feat. Thank you, Jimbo! You make sleepy Sunday mornings feel like the Saturday morning cartoon binges of my childhood!

[@robotcantina8957]

Thank you very much!

[@johncrawford6571]

Agreed!!! 😊

[@fluXxSieRra]

I was literally thinking the same thing lol

[@Golgi-Gyges]

The same

[@pgmurray76]

And how! (Little Rascals/Our Gang reference. Ok, you wippersnappers have no clue)

[@maxhammick948]

That's definitely two episodes worth of fabrication! The overdrive on the new clutch is really going to help get this lawnmower up to 60, and there's plenty of power handling reserve now for when you fit a stupidcharger

[@jfv65]

The funny thing is that you basically built a similar car to the DAF 600 from 1959 which had a 22hp 590cc aircooled boxer twin with Variomatic. It weighed about 640kg.

[@ronnieka3309]

Love those old DAF’s , good childhood memories. Wasn’t a V2 though😊

[@eriklarson9137]

No.

[@TruthProvider]

Yup, DAF -- dutch ingenuity with their first stab at making cars with CVTs...

[@rjung_ch]

It could drive as fast backwards as forwards the saying goes. NL ingenuity for sure!

[@TheLtVoss]

Well DAF did use 2 cvts one per driven wheel and the little bit of slip a cvt has acted like a limited slip dif

[@jeremypilot1015]

This totally explains why we didn't get a video last week.

[@goosenotmaverick1156]

Right? I'm only halfway in and it makes total sense. This had to take some mad hours

[@ramiroini9504]

I really want to see the test runs of this mods! This projects get more interesting every new episode!

[@michaelblacktree]

The wider gear ratio is gonna be a game changer. Looking forward to next video!

[@gregholloway2656]

Wow Jimbo, that was a pile of work to make all those mods. Thanks for not giving up. Now, try to resist the temptation to do burnouts with that nifty new clutch. 👍

[@abou824]

I can't wait to see the acceleration!! I have a lot of hope from those manufacturer gear ratio numbers👀👀

[@robotcantina8957]

You and me both!

[@danielschreier6700]

Game changer guaranteed, nice work Jimbo!

[@Fierofreak01]

I so look forward to your weekend updates! This is a really fun build, and your editing is top notch!

[@robotcantina8957]

Thank you so much!

[@proudlysa5260]

Thanks from South Africa 🇿🇦

[@robotcantina8957]

Thank you so much!!!!

[@anasevi9456]

Thanks for your hard work Jimbo, it's sure is a lot of work... But it's nice to see things getting buttoned up in a way that can last over the truly long hauls.

[@shadymaint1]

Those Comet Duster clutches were a popular upgrade on snowmobiles back in the day. Now your one step closer to using a snowmobile engine.

[@Марк.Фетнов]

Sometimes you have to take a few steps back to move forward. The Renault is going to be flying with the new setup, Great work and this was a really interesting double episode!

[@rodneyross5282]

That's one hell of a lot of work. I bet she will be a rocket. I can see a turbo in the future. With fuel injection, bigger cam stronger valves and springs, rod and piston. I know it's a dream lol. Have a wonderful week God bless in all things.

[@GrantOakes]

Can't wait until next Sunday!

[@garthbutton699]

One of the best channels for gear head entertainment on KZbin, thanks for your efforts🤗😎🤗😎

[@MrAtom631]

The end with the sped-up footage really made my day 😅 Its like cars in the old French movies!

[@robotcantina8957]

LOL, after reading some of the comments, I think some folks think that was a real acceleration test.... There are going to be some disappointed people next week lol..

[@billsmith5166]

Wow! Based on that new acceleration footage I hope you get some footage of your face when it does that deformation thing that happens to astronauts during the G Force testing. Cool.

[@jeremypilot1015]

Back for my Sunday morning pleasure. I was a good boy and went to church online first. Now I can watch guilt free.

[@Hamokk]

These videos are like ASMR for a car/mechanics nerd like me. Jimbo's calm voice and well-spoken manner always lifts my spirit.

[@chinchin1079]

The amount of effort you put towards getting us weekly updates is very much appreciated!

[@DnBL0ser117]

This new setup looks much better! I have no doubt there will be a huge performance increase.

[@sebastienboudreau9028]

Great episode jimbo. Appreciate all the time you put in.

[@stephengreen3566]

Thank you for your, obviously, hard work. We really enjoy the projects and are inspired by you. Thanks again.

[@snowdog993]

Awesome Jim! I know everyone is anticipating the next episode! WOW!

[@Dis-Emboweled]

And I did take a nap or two…😂😂😂 Me too Jimbo!

[@randr10]

Great video. I know how much work goes into something like this, which is why I appreciate watching you do it so much instead of doing it myself. 😁

[@stevenfaber3896]

Doing a project not because it's easy but because it's hard. Great work!

[@stevenfaber3896]

Can I ask why red and not blue/others for the go nowhere juice?

[@robotcantina8957]

I have used blue in the past and it doesn't hold as well as the red. The proof is I more or less ruined a lot of stuff getting the red to release.

[@firstlast---]

​@@robotcantina8957What about orange? Loctite claims it has the strength of red but heat isn't required for removal

[@thomasknobbe4472]

We knew something was up when an extra week passed without an entry. And the result is an amazing fix. I have a brother with a big old industrial lathe in his garage (there went a whole wall of storage space), which is fun to watch, so it was great to see what you do with yours. That new clutch looks much more substantial and likely to work once you get everything lined up and dialed in. We await the zero to fifty data with great anticipation. With that broad range of ratios, maybe even zero to sixty! Quarter mile through the traps!

[@acurarl9929]

Always an absolute treat watching your channel. Love That you share all this with us. Thank you. Very enjoyable

[@billharris6886]

Wow Jimbo, you have REALLY been busy! Thanks for all the effort in putting the video together, I don't expect that much work each week, that sounds like overload! Yeah, 1 and 2 cylinder air-cooled lawn mower engines are not known for refined operation so, a generous de-rating of mounts, CVT, driven shafts, belts, and etc. is always a good idea. Using 1 or 2 large cylinders to make power results in huge torque pulses to the entire system. Your engine/CVT cradle has held up well considering all the abuse. For designs that complex, I make a CAD drawing ahead of time, which also catches some design problems before parts get carved out. Yes, I know the basic, engineering sketch on a napkin has launched many revolutionary ideas, that and it saves time for basic concepts. Keep up the fine work Jimbo, each one of your videos is very interesting, even with the gnomes ocasionally interfering. 😂

[@jeffreyc9183]

We appreciate all the hard work. It was definitely a good plan to tear all the way back down to eliminate the belt issue.

[@benstrait333]

Sounds like a good plan, I'm looking forward to seeing how it works out👍

[@pimpstick2]

idk why this channel doesn't have at least 100k-1M subs. The algo needs to pick this channel up and advertise it.

[@LostInThe0zone]

Nice work Jim. I like the ratios on the new clutch. It might alleviate the need to shift the four speed.

[@vevenaneathna]

your channel is taking off man. honestly im glad i get to see everything taken apart and put back together, kind of like how TV shows in the early 2000's and before used to occasionally do a "last time" segment at the beginning. came here because i wanted to buy a clapped out honda insight and i somehow found your channel. thankfully you talked me out of it and i learned how to spoof the analogue voltage outputs on my 02 civic's MAP/MAF sensor by making a ghetto rigged "MAP enhancer" (just a potentiometer wired in line with the output of the MAP sensor and a rocker switch to either bypass the pot or use it) which let me get scratch the hwy MPG lean burn bug instead of starting a new project car from hell. i figured it was okay to mess with this since honda themselves built a lean burn version of my model civic. got up from ~36-42 hwy mpg up in the low 50's. was driving a lot but finally killed that car with ~400k miles on it when teaching my gf how to drive stick turned into impromptu cardio. owell, got a chevy volt a few months ago once the prices came down since WA state added a ~1.50$/gal gas tax this year. I am learning more than i thought i ever could about cars from your channel. theres nothing else like it on youtube and thats why your channel will keep growing like crazy. thanks for doing all this work. you have to be retired... so much effort goes into these videos for someone who doesnt get millions of views on every video (yet). hope that means youre doing stuff you always wanted to but never had time/re$ources. thanks for uploading man, have a good day :)

[@robotcantina8957]

Thanks!!!

[@orampage1_462]

Damn! After the clutch swap, that thing MOVES!

[@reverse_engineered]

I enjoy the debugging and fabricating videos just as much as the road tests. Excellent work as always!

[@Ar0d]

It looks like an incredible amount of work. We are SO lucky to have a content creator like yourself. I love every funny edit and well engineered idea. Thanks for the hard work Robot Cantina (and Jimbo) ❤

[@Ar0d]

@@greatestevar If you doubt this channel's ability to create, fabricate, precisely measure, and achieve goals with untraditional materials and means...... Then you do not know the definitions of the word "Engineer"

[@jasondreams202]

I’m anxious to see this thing back on the road, glad to see you’re working so hard to get it back together. Can’t wait to see how well the new cvt works

[@ruglund]

fantastic episode. loving the dedication 🙂

[@524_td]

I forgot I had the video on 2x and I was blown away by the acceleration clip i had to sit up and watch it again!

[@BigBlueMotors]

Nothing like an episode of Robot Cantina to give me happy feet and hands on a cold and rainy Sunday.

[@Tommysmess]

This is my favorite series on youtube, I really appreciate you keeping the project going instead of calling it the end

[@SLIMMY93]

This is one of my favorite series on YT. I show all my friends!!!! Much love and keep rockin'!

[@ptonpc]

A huge amount of work and some really good engineering.

[@justjames9775]

A gravel donut would be the proper way to break in that new clutchverter!

[@KRRZ350]

A tap socket set is a game changer when using a tap

[@drooskeedoo3388]

That is the cutest little input shaft on that transmission I have ever seen

[@joshbrekke6374]

Now she’s really ripping, fun. Hope it stays reliable now. It should, great work! Once it’s all dialed in I would be very proud to every day this lil baby, how fun!!

[@Cynyr]

that warp speed ending shot! *chefs kiss*

[@randr10]

I was pretty bummed to see no video last week. Excited to watch this one!

[@Steve8587]

Yep. Sometimes we get a dead end. But back to the drawing board is the answer. Well that and lots of work. Excited to see this speedster next video. Nice work.

[@TheGuyMullins]

One of the best and most interesting series I have ever followed.

[@roberthoffman4713]

I can't wait to see the next video. Hopefully everything pays off and she goes down the road faster than ever before.

[@hondaccool]

A big thank you for the humongous work you put on every project and sharing it with us 😎

[@SloppyMechanics]

thank you for taking the time to do all this for us

[@Thecarguy1254]

I'm a simple man, I see Jimbo upload I watch asap!

[@chadrobke9676]

I just realized that you are using the CVT as a torque converter! Ingenious!

[@Wagonman5900]

Excellent work. The wider spread in the new drive system will make the best of the motor's power.

[@rivercreekfarms5063]

Thank you for all the time and hard work you put into these projects! Your work has inspired me to be more creative and try new things in the shop 🙏🏻✊🏻

[@zedzed112]

Love the humor! Dont change! Keep up the awesome content!

[@fairlaneboy66]

I'm excited to see the results next week. That ratio difference on the cvt sounds to me like it will be awesome. 🎉

[@carwashadamcooper1538]

Well done, Jimbo. I'm sure she's going to really impress. (Although I still say that clutch is backwards) Thanks for letting me visit the shop.

[@ivanbarton4475]

Thanks Jimbo. I'm always looking forward to watch your videos on Sundays with a cup of coffee

[@Ian-iu2tl]

1/2 box of Cap'N Crunch...you're doing good Jimbo.

[@Commander-McBragg]

Can you make the shows twice as long? Ha ha, I know it’s a tall order but I love this show!

[@minnesotatomcat]

Undoubtedly a great big pile of work you did! Can’t wait for the next round of testing 👍

[@Roger-hq1yt]

Brilliant, i love the constant pursuit of better engineering.

[@90FF1]

That Italian drive belt? Cintura di sicurezza, of course. Truly an international car. The Renault brothers, Louis, Fernand, and Marcel, and would be proud. 🤗 Or maybe not. 😮‍💨

[@steventrott8714]

Thanks for working your ass off! We’re certainly entertained!

[@thexaviergoat4621]

Holy crap the new clutch is way way better good job the 670cc motor seems a lot more happier with that clutch system you developed

[@polarbub]

I liked seeing more of how things are actually made!

[@geraldneville2733]

Thanks! for your time and inspiration. Now I will head to the shop to work on my projects. Take care.

[@JoeBManco]

Your work turns out so good. And now I know that Comet makes an even bigger clutch.

[@jonthecomposer]

I'm going to be the community car guy troll and put in the obligatory statement of "MORE DONUTS!!!" lol (kidding) I want this build to succeed without (much) destruction. I love watching your videos and the amount of work you put in is definitely way more than "it feels like" just watching a video or two. But I am old and somewhat partially wise (on a good day), and my experience tells me Jimbo is putting a LOT of work into this! Great job.

[@chevyinlinesix]

Great episode, and a lot of work you did. When the outro song started playing early on... well played, it was an emotional rollercoaster haha.

[@fixins]

Love this project. I used to work in TV/advertising and a client did a study if kids knew what the "needle dragged across the record," SFX was. Answer: nope... but they knew whatever it was, was bad.

[@andyknappenberger7512]

I'm gonna go ahead and agree the driven pulley is installed backwards.

[@andyknappenberger7512]

On second thought and a bit of research.... I change my mind and now agree with it being the correct orientation

[@Diamondsharp2004]

I Love your ingenuity and sense of humor! Thanks and keep it up!

[@X7rocks]

Only a quarter way in the video and see the larger pulleys is going in. Very popular modifications for smaller cc scooters with no lowend power. Helps improve lower rpm acceleration and even helps with a slight increase in top speed. We call them over range cvt kits so it's cool seeing similarities between the cvt on this engine.

[@goosenotmaverick1156]

I, until last year, did not realize what was in a scooter for drive system. They're honestly pretty neat. I had to put a belt on one last summer for my father in law. (Technically he's my wife's grandpa, but her father figure growing up) what an interesting find when I opened it up. 2004 model with an original belt 😂 The whole variator/clutch system was neat. I'd worked on plenty of CVT drives like comet 40s and such. Seeing a new way of use (to me, obviously it's been used for ages) was fun.

[@Wyowanderer]

Lots of hard, quality work. Thanks for adding to the saga.

[@nodrug2]

Thanks for your hard work, hardware and editing. As you read through the comments you can see how many smiles you put on peoples' faces on Sundays, please keep it up you have a loyal and appreciating audience. Do you think it's possible to make a quick short to show us the car going or do you plan to keep us in suspense until next Sunday? Whatever it is we'll be there.

[@rjung_ch]

Jimbo, this is such a mint project, can't say it enough, this is a blast! Next week it'll be good for the road test, say it'll be 15% faster. Until next week, cheers! 👍💪✌

[@fretlessfender]

My goodness!❤ I adore your engineering skills by a lot! I used to drive Daf cars for ages, and they make use of cvt drive or variomatic... double rubber belt, two sets of pullies, vacuum controled by the inlet manifold... witchcraft! But it worked! I do hope you have a breakthrough now with the new clutch and drive pully... although I'm anxious for the clutch design. If you compare it with the clutch Daf used on their 33 or 44 models it looks a bit flimsy... mind you the daf engines were only 750 and 850 cc, but the clutches were really beefy... anyhow I love this project!

[@motorosso3349]

Nice work Jimbo. I'm looking forward to seeing the driving results next week.

[@detroitredneckdetroitredne6674]

Spectacular job Brother thank you for sharing your knowledge and expertise and for taking us on your adventure under the hood of your projects

[@jimastra8488]

I really appreciate you sharing your projects with us. I used to do this kind of stuff with my dad as a kid. He and I no longer talk so its nice to see what we could have done had things been better between us. Thank you for everything you do!

[@thedude7726]

Good morning everyone!!!!

[@kenjohnson5498]

I knew it was a matter of time before that clutch had to be upgraded, i'm excited to see how the modifications work out.

[@hpdepasse5997]

maybe the small CVT's automatic clutch is slipping a bit and causing the pulleys to heat up? I know it's too late now, but for another time. There are two possible settings on a CVT: the speed when the clutch sticks and the speed when the belt starts to rise. the higher the clutch speed, the more power there is but also there is more wear; and the starting setting for belt rise must be that of maximum torque for the best acceleration and end at maximum power for maximum speed.

[@Omegadoomship]

I always look forward to new videos every Sunday! I have a few unconventional engine ideas that could be used for future projects: -Wisconsin V4 engine These old dinosaur work horses were used for industrial applications, but no body uses them because they are big, heavy, and don’t produce music power for their weight. However, they are air cooled and being a V4 layout, it should sound really cool being a super uncommon layout. They made flathead engines but I would try and find an OHV engine. There’s more potential for power with OHV. -Big block Briggs Vanguard of Kohler V-twin. 1000cc. No one seems to do projects on these probably because of their high price tags. They are like the Predator 670 but much bigger and have more power out of the box with room for even more. I know there are some aftermarket performance parts for the 35 HP Briggs Vanguard as they are also used as a marine engine. -2-stroke jet ski engines. They have 2, 3 and 4 cylinders, liquid cooled and sound pretty radical and make a lot of power at high RPM. Getting the liquid cooling to work being a marine engine would be tricky because you would have to convert the cooling system from an open loop to a closed loop system with a radiator. I have a 650cc Yamaha 2-stroke 2-cylinder jet ski engine that I plan on making into a motorcycle one day. It might involve casting some aluminum parts to make it cool properly. An easier solution would be to try and use a snowmobile engine instead, which are more or less the same thing except they are air cooled and often come with their own CVT transmissions. All of these would be significant challenges for one reason or another. But it would make super awesome videos.

[@DirtyDanMunicipalMan]

Dude just gotta say your engineering and fab skills are impressive. I’d never be able to figure any of that out. This channel and project are awesome!

[@spg3331]

Thank you for all your hard work to keep us entertained

[@ejcrashed]

To be fair, that comet 44 took more punishment than i believed it could, as allways beautiful work Jimbo

[@kingsquid1000]

If you want the wrap to suck slightly less I suggest painting it with high heat paint after application. It makes it less likely to break down and toughens it up.

[@johnsalisbury3768]

This content is mechanical gold, love your work! Keep it up man.

[@johnramsey2009]

One more Jimbo! One more Jimbo! Thanks for the hard work!

[@camo8768]

Great vid Jimbo. Really enjoyed this one. As a side note, I love your speech cadence, you're nice to listen to.

[@andrewwihlon7419]

This is one of the most uniquely cool projects on youtube. Keep it up, Jimbo.