Engine Sprocket Extension... Mini 4WD Trophy Truck Project - Part 8 

Those engine mounts are a work of art! Much better than plate steel 🙂

you should name this project "chain reaction" seems fitting since theres a million chains on it

This is a good lesson in why sometimes using random recycled materials kind of sucks and it's worth spending a couple bucks and buying a known alloy.

Just a thought… you should take all your metal shavings from the lave an make a video melting them down and pouring it into a knife or something cool, just a thought for video ideas! Great work man!

I like to use pillow blocks whenever I can. because they are extremely strong and adjustable and in most cases grease able. I just I would mention that. and I also thought I would mention. your choice of music for your videos. is hands down the best on YT for sure. keep up the great work.

I would’ve done the engine mounts differently but your work is what make you different. I’m the kinda person that will tell you, if you can build it, I can build it 💯

The metal you were tying to drill was Probably work hardening. Best option there is to keep coolant on it and constant pressure until you're through

If you are doing your best, you will not have to worry about failure.

Great work, keep on building like this and we will keep on watching!

Hell yeah, new video!!!!

WARNING!!!!!!!! You'll need to re-engineer the way you're attaching that shaft extension to your engines output shaft. Man, that extension is SICK!!!! However, by applying any side load whatsoever to that output shaft is going to do some serious damage really quickly. I've seen another comment here about this, but this particular issue cannot be missed. You were correct in explaining how the sprocket is held on the shaft with a bolt. Now, imagine backing off the pressure the secondary bearing and its mounting plate are putting on the output shaft JUST enough so as not to give the extension any side-to-side play, but keeping it in place. Essentially putting up a wall against the end of the extension so it can't come off the output shaft, but not creating any inward pressure at the same time. That's the key to making your extension work without causing any damage that would force you to tear into the transmission of that big engine. Man, I am so looking forward to each video you're doing on this truck. I can't wait to see the test runs, and to hear all those chains.

You've done a lot of good work so far BUT, by far, those engine mounts are my favourite parts!

Generally it is better to cut towards the chuck. Also if tapping, use Tap Magic. It is a game changer. The metal you were turning is work hardening. Slow down, use lube and sharp tools.

Thanks for filming Chris. 👍😁

Starting to take shape love that your using stuff from the cbr 1000 build that just worked flawlessly & implementing here your metal work & welding is marvellous I am getting excited to see the Finnished product this shoukd be amazing have a nice week mate 👊💨

Excellent job on the motor mounts and as I see it the whole build is a work of art.

While I think this is a complicated bit of over engineering with all the chains, sprockets and gearing, and I think a shaft drive system would be simpler and lighter, I can’t help but be fascinated by the mad scientist approach and look. This is a really cool build and almost has a steampunk feel to it. ✌️

Those engine mounts are awesome! Great work on this project!

That’s the nicest engine mount I’ve ever seen.

I truly appreciate and enjoy your channel. I'm always looking forward for the next video. I love your work. Great job.

Slower spindle speed (50rpm) and more cutting lube!!! Mounts looked nice.

It’s crazy how far you’ve come, I remember watching one of your first builds it was a tiny four wheeler you made in school , now you’re building massive buggies !! Keep it up 👍🏼

The round stock mount turned out sweet... good idea .

Would love to see a buggy build using all CV and Uni joints, no chains. If you ever sell it, the amount of chains, sprockets and custom shafts needs replacement, would be a expensive exercise for it new owner.

Man I wish I had your machines. I miss machining as I am a retired tool & die maker.

Your fabricating skills are extremely clean. 🤠🐂🏞️

Chris you do great work. Next vehicle should use a Yamaha V max engine with it's shaft drive.

21:27 I would definitely put the zooming thing for the lathe in an insulated box outside. That thing drives you crazy!

Of all the builds I follow on YT, I look forward to this one the most. Great job as always. You’re truly inspiring!

Those engine mounts are sweet . Your skills just blows me away every time . & I’m a part time fabricator. Your right there with Ethan at ghpc ! This build is getting exciting

Those motor mounts were cool AF!!

Chains are very strong but have to admit riding in that at speed would be terrifying with that much mass rotating around my limb’s. Love it!

Happy 600k! Great work, Chris! We absolutely love your content.

Round stock for the engine mounts definitely looks awesome.

Wow you are incredible that engine mount set up is very clever loving watching this build 🥰🥰

13:03 started talking like Popeye 😂😭😭 glad you kept that in it cracked me up!

You are not mad Max, you are crazy Max …

You definitely have some mad skills. The quality of your builds away impress.

Put a bearing on both sides of the sprocket extension to take the chain pulling force off the actual sprocket output shaft

Great decision on the motor mounts. Awesome job. Your skills have come a long way since I first started watching you. You were just teething on 1/2" bolts. Good luck and thanks for not editing out the little bloopers. 👍

Mounts look awesome 😎

Lots of work bud the motor mount is sweet thanks for your time

Maybe that steel has a tendency to "work harden?" I've run into that before. Kind of a pain. Thanks for the videos! 👍👍

Yep have you ever taken a good steel ball bearing and spun it in between your fingers??? I have when I was your age! Not thinking of the "What Ifs" Well I spun it with an air gun so fast it blew up in my fingers!!!! Everything went all over! Talk about pain and hurt holy man!!!! I was lucky I did not lose my fingers eyes and them little balls were like shotgun pellets! Yep not thinking!!!! Think of a situation where them chains with only one whip around the sprocket going higher than the speed of sound as it gets momentum around the sprocket! That chain will do a lot of damage at high speeds! Remember it's always fun until someone get hurt! Do your part and protect yourself and others around you man!!

Small stack of washers lol great looking build.

13:03 had me in tears, glad you put that in. Your work is inspirational, cheers from Australia.

You make some oddball choices in your drivetrains. But it seems to work out well enough in the end. I enjoy your builds.

Kick ass engine mounts. The whole buggy should be engineered connections and thinner linkages IMO.

Love the engine mounts! And the beautiful machined parts

Chris your skills are always getting better and better, keep on machining and welding on☮️

Switch your tig cup to a 10 or 12 with little more gas flow. Guarantee you’ll say wow like Owen Wilson. (and a gas saver would be even better)

You're an awesome fabricator. 👌

as a long-time viewer of your channel I still can't get over the amount of skill you have attained it is incredible to watch and so entertaining for mech heads like us who have done similar projects in the past I used to build off-road land rovers I mean lighten them up fit diff locks in the axles lift the suspension and increase the angle uprate the engines I used 3-litre ford v6 and ford v8 5-litre engines the 5 was the best the old mustang engine and they sound fantastic and there are plenty of parts for them to uprate them even in the UK(ENGLAND) plus fitting lighting snorkels bigger tyres uprating the drive system like drive shafts as they were prone to break we used range rover axles and shafts from the states US as they were the best in strength and then have fun trying to get them stuck in impossible positions but still get out without using the winch those were the days. so I love watching you revive it all for me and invent some new ways for the drive system like the one before using the jackshaft as the swinging arm is genius so impressed so all the best Chris from John from Rugby UK.OH ps and CONGRATS ON 600.000 subs mate you should be on the millions by now with your level of skill but nothing stranger than folk.

The material was going hard because of the temperature you were putting into it with the drill. You really need to have coolant flow. Or at least some oil on the cutting edge.

It’s 5 o’clock ish in Australia and I’ve been waiting for this to come up the entire night haha

You're doing an amazing job! Love the channel.

I really have come to enjoy watching you work. I also enjoy seeing a small look at you thought process. I have taken the time to watch almost all of your past videos. You have really grown into a very well rounded engineer, and fabricator. Thank you for sharing through your videos.

The engine mounts looked great.

You should invest in a set of carbide bits or use mill bits as they will eat through almost anything

Super awesome build so far, I'm loving those motor mounts and your engineering.

Good choice with the round stock for the engine mounts they do look pretty sick

Love your work. I'm always looking forward to your videos!!👍🙂

Excellent job man, I love that your builds are flawless such good attention to detail perfect fabrication

Top notch engine mounts...I know you were proud of those, as you should be.

That thing is badass bro engine mounts are sick never seen anything like it before

Love your channel. Your a awesome fabricator. I watched all your builds. Can't wait for the next video

The engine mounts look kick ass!

Dude! you knocked it out of the park with those upper engine mounts!!!

Very interesting project! I love watching it😊

I like the engine mounts. May have to steal that idea sorta on a mini bike I'm building with a little two stroke.

Sick work!!!

Yayyyy been waiting all day thanks dude never fail to entertain

Very cool build so far I would love to do something like this in my garage 😀

Nice work!

Hey Christopher, those are incredible engine mounts.

those engine mounts are awesome!

It's coming out looking sick!!

Nice job on the engine mounts dude 😁😁🤘🤘

“Impossible to do an ugly weld”. Just give me a go! 😂

Love it keep it up ❣️

That is some beautiful work bro 👍🏻

Lets go!

So good ii boss 💪💪👍👍😊

cutting lube, the old in n out maneuver if it's overheating, and enough pressure to always take a decent chip out- that's what you want lol dude make a new shaper tool holder or weld some kind of spine on it so you don't need to hold that wrench on it

You're an awesome at making all these vehicles but dude that's way too much chain One of them breaks you better have an awful strong chain guard plus how come you never use anything with grease fittings keep up the great work

It might help if you use oil when your turning on the lathe 👍💚💛❤️

Congratulations on 600,000 + subscribers

That mount is a freeking masterpiece

Nice maaan! 💪

love the look of the head mount bracket great job this thing is really starting to look like something i still really think you should do doors tho

high weight of the vehicle and monstrous power drops for kilometers of chain!!

Nice looking engine mount.

I noticed you have no retainer for the engine sprocket.... the engine power will eventually force the sprocket out and off the splines unless it is locked on ... I suggest a dowel pin or bolt just beyond the splines.... to hold it on the engine.... a grade 8 shoulder-bolt with a nilock nut should do the trick. she's looking great ! keep at her !

'With this set-up, with this rotary table it's almost impossible to do an ugly weld'. Really, hold my beer.

Your skills just keep evolving 👁👃👁👍

I'd like to see at some point a similar setup with a fwd transaxle driven by a bike engine. Then you can run either a chain to the pivot axle like this or run CV axles AND have the option of a LSD differential. You get the gear reduction but if you run an overdrive 5 speed you get that as a bonus too. I've always planned to do that but I've never gotten to it. I'm getting equipped to be able to but not sure when I'll have the time. More likely to build a full size buggy with automotive drivetrain .

Need to get a oil seal on the transmission output shaft. Great build.

Great!

As fast as I have seen you go, I really hope you really do a good job at covering those chains up! Those what number 40 or bigger chains whipping around would have an unreal force behind them if one broke!!! I hate to see you get cut in half or whatever! It's not worth the big pain and problems healing up cut nerves and after the numbness that follows cut nerves or loss of function or loss! Nothing under 7/16s or better half inch for guards and covers! Thicker stronger is always better!!!!

i dont think you 'hit' a hard spot, i think you 'created' a hardened spot by not using any cutting fluid ;) definitely a pretty result