S4 E6. low cost vacuum power brakes for our diesel Honda.. problems solved.

Season 4 Episode 6 Jimbo solves the chattering problem with the Vacuum electric power brakes on the diesel powered Honda insight. Plus Jimbo experiments with different ideas and explains how they work.
Hi Ya folks! Beware of a GIVEAWAY SCAM. This channel is NOT doing a Giveaway and we are NOT asking for personal information. If you get a message asking for info, please ignore it.
Jimbo
Robot Cantina
207 S. Sedgwick Ave
P.O. Box 28
Haven KS, 67543

[@briankuhn7396]

I'm leaving a comment as an offering to the KZbin algorithm. This channel deserves more attention!

[@oddshot60]

ALL HAIL THE ALGORITHM!!~!

[@paulwebber1657]

Matt would approve

[@darwinskeeper421]

Amen brother!!!

[@goosenotmaverick1156]

All hail Al G Rithm and Robot Cantina!

[@bigego99]

I hate algorithms...but this is a cool channel and if comments help I'm in.

[@richardschaefer3889]

Men of KZbin, gather around. Jimbo has brought forth our Sunday dose of sanity. Grab your coffee, it'll be needed.

[@JT-py9lv]

*As a ham radio operator... Thank you for being conscience of RF noise pollution.*

[@goosenotmaverick1156]

I'm a dumb dumb that knows very little but finds HAM very fascinating. It really causes that much, issue/interference/noise wise for you shortwave operators? Are there things that us car nuts can do to things like small engines or equipment to help remedy it, without redesigning entire systems? Any quick tips/tricks would be appreciated, I'd like to do my part to reduce what I can. One day I'll get into it. It seems like a blast, and I have trouble sleeping, might give me something to do when I can't sleep 😂

[@JuniorJunison]

​@goosenotmaverick1156 I think it does very little to cause interference with radio signals, because by that same logic the sparkplugs on a car would cause problems with radio signals, and don't get me wrong they likely do, but technology has progressed so far that it really isn't an issue. The main thing he is doing by putting the diode across the electro magnet on the relay is to eliminate the back EMF, which is generated when the magnetic field collapses , this in turn generates a voltage in the opposite direction. Now this voltage is usually a high voltage, and in the case of microcontrollers or other small electronics, they are sensitive to high voltages, so the diode helps eliminate the back emf that would otherwise destroy your microcontroller. In my opinion the noise it creates isn't a concern, is the high voltage that is part of the so called "noise" that is a problem to other voltage sensitive electronics.

[@SlinkyD]

​@@JuniorJunisonCars with leaky ignition systems and the diesel garbage trucks cause local Channel 5 & 13 to go out. Most people don't realize it because of cable/streaming and the fact that Channel 5 isn't picked up well since the digital transition. Just because its unlilely doesn't mean it doesn't happen regularly.

[@eriklarson9137]

Oof. The very worst "as a" that I have ever read.

[@eDoc2020]

@@goosenotmaverick1156 The biggest thing you can do is make sure your spark ignition systems have resistors on the spark lead. This can either be a resistored plug, a resistive spark plug wire, or resistance in the coil. Most systems have this already. Also if you have points ignition make sure your condenser is good.

[@markosluga5797]

Time for a coffee and robot cantina!

[@michaelblacktree]

Yep!

[@goosenotmaverick1156]

I'm late but I'm here with my coffee! 😂 Man I'm late as hell today, I'm usually here sometime during the second hour of it being up 😂

[@MrBillrookard]

Oh thanks, that triggered MY alexa to announce shes not spying on me...

[@michaelblacktree]

Of course, it's programmed to say that...

[@eriklarson9137]

Imagine having that in your house. Do you also use Tiktok?

[@willfixthingsfordonuts]

Jimbo, you overthought this, when you tried the SS relay and cap, you were on the right path to K.I.S.S., Rather than grab the time-delay relay, you could have simply controlled a regular 40A relay with a switching transistor (say a 2n2222) with that 470 mfd cap across the base & ground, (collector to relay coil, emitter to ground, so the output would be inverted, so coil reference is positive) then tuned the timeout with a parallel resistor if it's too long. I've done automotive electronics for years and have built many simple "bounce-prevention" circuits on a budget of "whatever is in the tool box" I know you like cheap and reliable, and this simple circuit is just that.

[@ghosttheoremproductions5469]

Was thinking the same thing. Would be nice if RadioShack was still a thing but part of the reason I keep broken things around. Device might be dead but components are still good to harvest.

[@lr0dy]

For a circuit such as this, couldn't you go even simpler and just put a capacitor between the switched hot and ground lines to the relay? Sure, it would add a slight delay to the relay triggering on, and it would remain on slightly longer, but it would be even KISSier... Edit: Right, he addressed that.

[@PEGuyMadison]

Great idea, you beat me to the solution.. you are probably a time zone ahead of me. :)

[@goosenotmaverick1156]

​@@ghosttheoremproductions5469 I still have a local radioshack. They had 3 franchise stores in my area and when things went south, they closed all but one. I was just in there a couple weeks ago. they're rare but some are still hanging on. It's been sad to see them struggle. When I still had time for projects like that I used to frequent the one that's now closed, it was close by and I could go on my lunch and buy more resistors or whatever I needed. Also the Vaughn family that owns the store, are very nice folks.

[@firstlast---]

I thought the issue with that was emf which is why he went to an upgraded relay

[@ghosttheoremproductions5469]

A reservoir would help (but not necessarily solve) the chatter but not by volume of gas. Part of the cause of the chatter is from temperature change. The remaining gas is cooled on pump-down due to the decrease in pressure. It immediately begins to re-warm, increasing the pressure slightly, re-triggering the switch. This will always happen in a decreasing oscillation until equilibrium. A reservoir adds gas volume which also means a larger thermal buffer as well as thermal exchange area. Decreasing the frequency of the oscillation. A bunch of variables go into how much of a "fix" this would be. Too hard to say with the small system you're working on. But it is cheap and simple to try. - Oh, and this is why on older cars you'd often see a vacuum reservoir mounted down in the fender. So that engine bay temps would have less of an effect on the remaining gas volume.

[@ferrumignis]

The _cause_ of the chatter is that the switch has no hysteresis, the contacts gradually get pulled apart as the vacuum increases rather than snapping open, and then snapping closed when the vacuum falls by some preset amount. A reservoir will not change this behaviour, a better vacuum switch would be the correct solution.

[@robertusa1234]

I suspect your making all these driving improvements to Possible go on power tour this summer .. keeping my fingers crossed

[@Heapsofjeff]

That would be a cool reliability test

[@goosenotmaverick1156]

@@Heapsofjeff the coolest!

[@probablywrongagain2151]

I find myself fantasizing about building a diesel powered micro car everyday now. Thank you Jimbo! I love this channel.

[@calvingreene90]

Put the reserve tank next to the vacuum pump and have several feet of vacuum tube before the the pressure switch. This way the friction of air movement in the tube results in the pressure at the switch to briefly continuing to fall after the pump has stopped as the system pressure balances.

[@Sonos45]

a restriction on a shorter hose will accomplish the same thing. Carb synchronization gauges had knobs that crushed the hose to take the bounce out of the guages

[@Clearanceman2]

I wish I found your channel a year from now and could binge watch it. Each episode is about half the length of a TV show episode, so it takes a lot of patience to wait for the next episode and for it all to come together. I'm still waiting on the supercharger.

[@jeremypilot1015]

Dude the animation was the best. I am watching the normally closed switch working but the relay was just hanging out, I was like "where there's your problem lady!" thanks for the explanation

[@randr10]

I get all excited when I get up on Sunday mornings because I know there's going to be a new RC video posted. By the way, thank you for your explanation on the capacitor solution and why it would be a bad idea. You explained it perfectly.

[@robotcantina8957]

Enjoy!

[@miketriesmotorsports6080]

I like the variety of problems that you need to solve with these projects, and I appreciate that you choose to show them to us as you go along.

[@goosenotmaverick1156]

The problem solving is half the fun, for me! Some of the solutions are a bit above my knowledge, but it's always fascinating. The end result is just sweet, sweet glorious victory over said problem!

[@rodneyross5282]

I love how you show people how to do it. The policy of K.I.S.S. is working well in your world.

[@boardnski156]

MOAR BOOST! Great thinking outside the box to make a solution for the lack of vacuum!

[@devivoman]

You’re going to need those brakes to work well when you are going fast enough to travel back to the future after you get that coal roller supercharged!!! Thanks for the detailed explanation, I like learning in the nitty-gritty!

[@miketoney1660]

you one smart cookie, I totally understand what you did and why you did it but I wouldn't have ever come up with it on my own, I think you just helped me with a dilemma I've had for some time, thanks

[@girthquake1413]

I come for funny engine swaps, but I stay to learn electronics knowledge for circuits. Thanks for all the lessons Jimbo, they really mean a lot.

[@dylankoch1827]

The amount of effort you're putting into this project makes me think you're going to end up daily driving this car once you're far enough along!

[@craigfreeman9280]

I was getting all sorts of ideas while watching this video for building a mechanical vacuum pump similar to and old chevy fuel pump working off of some sort of cam, but then I realized the little diesel engine is already strapped and the parasitic load of another device would lower your 0-50 times to a painful level …. Ah well, Thanx for the lesson in electronics ❤

[@somethingelsehere8089]

Well done. Reading those 12V diagrams is second nature to me - so I am glad to see that you thought to add a little clarification around them.

[@Cookie-Dough-Dynamo]

Hey. Thanks for explaining why a capacitor was a bad idea on the analog relay.

[@user-dp3yo1uw9y]

This channel honestly deserves more attention I agree 💯 percent

[@thegreatkingdaniel]

Easily in my top three favorite KZbin channels. Thanks for all your hard work, Jimbo.

[@FarmAlarm]

Juice the Algo

[@lindsaydempsey5683]

Jimbo, I love the channel and content; thoughtful, interesting and entertaining. I meant to make a comment last week but didn't. The timer works great, I really like that solution. After last week's episode my mind went to a two pressure switch option to deal with the low hysteresis switch chatter problem. I think that this works. Taking Switch 1 as activating at 15" Hg and the Switch 2 at 25" Hg (and both having low hysteresis values individually). Wire the supply to Switch 1, then from Switch 1 connect Switch 2 in series, and then on to the coil in the relay. Opening either pressure switch will cause the supply to the vacuum pump to stop. Then make a connection from the relay output powering the vacuum pump to the supply side of Switch 2 passing through a diode. With this configuration the supply side of Switch 2 is maintained with voltage while the vacuum pump is powered, effectively latching the action of first switch until Switch 2 turns off the vacuum pump. The vacuum pump will start again when the vacuum is less than 15" (both pressure switches closed), but will continue to run until 25" before stopping. This provides a wide gap between switch-on and switch-off for the pump, and the pump will only ever run for as long as it needs to (not that this is important or even relevant, but I'm a bit OCD on these things sometimes). The diode stops Switch 1 from supplying the pump motor directly when it closes. I'd be curious to know if you like this approach or not, I'm guessing that you had already thought of it and set it aside in favour of the timer option. Cheers

[@brianb9410]

FUN! What a fantastic tutorial on simple electrical circuits. You are a terrific teacher. Thanks.

[@g.simard854]

Your my Sunday KZbin appointment, the only one I really enjoy !

[@titi101]

I just love your videos. They are made so easy to understand, just beatiful

[@alexevenly]

Absolutely marvelous! I do like the South Park grade of animation in schematics - it's quite enough to understand =)

[@jeffreyc9183]

It’s awesome that you continue to demonstrate building a one off vehicle.

[@MikeTheSlacker]

I'm not much of an electronics guy, but I follow along the best I can, in the hope it may prove use full somewhere down the road. Simple and easy to understand.

[@alexanderdaniels9039]

Good job Jimbo! Always a treat to watch another video. Keep on keepin’ on!!!

[@Ekasmer549]

Great progress can’t wait to see that dash installed! Thanks Jimbo keep em coming.

[@Arnthorg]

I think you could do it with a mechanical solution by having an accumulator right before the vacuum pump and an orifice. There would be an excess of vacuum in the accumulator because of the restriction and it would pull the vacuum in the booster below the vacuum needed to disengage the switch, but electronics is ofc fine too

[@Adam-nv9zo]

Very interesting, Jimbo. I learn a little something from every video. Thank you for that, sir.

[@user-od3bc7uf8e]

If this was ElectroBoom, the cap would have blown up.

[@robotcantina8957]

Nothing worse than an exploding capacitor...LOL

[@petroelb]

​@robotcantina8957 They do smell terrible!

[@goosenotmaverick1156]

Coffee, Cantina. Sunday is good ❤ Much love Jimbo, thanks for making my sunday morning routine my favorite one!

[@douglasmayherjr.5733]

Appreciate your videos. Your wiring diagrams explain how it works very well. This little car is going to be like factory when you are completed. I think this is what they should be developing instead of the EV only. Thanks for the videos, Jimbo.

[@NeonDreams7]

Thanks for a great start to my Sunday!

[@mortimersnerd4156]

I really love this channel, I also love the increasing complexity and specificity, thanks Jimbo.

[@davidhammond8049]

Thank you for the detail - it's nice to have episodes like this......top work Jimbo!

[@mastercricket7626]

Man I needed you when I was growing up as a teacher , cuz you are damn sure smarter or atleast know how to break down and explain stuff alot better 😅.. peace and love jimbo keep it radical stay safe and build on broski .. l8z and have fun brotha

[@cullenmiller8170]

Great video and schematics. Always enjoy the time spent on explaining your systems. 👍👍

[@TSRGarage]

Another great video. I like the animated wirig diagrams, I'll have to remembered this video when someone is interested in how relays work. Looking forward to the supercharger install and experiments.

[@dogdooish]

Jimbo, your work load seems to be enormous!! Well done!!

[@KronoReaper]

Man I’m thankful that you follow your schedule, these videos mark the end of the weekend for me, it’s become a routine

[@yodasbff3395]

Good stuff Jimbo, keep up the good work and thanks for sharing your videos.

[@andrewweltlich9065]

Great job. Thanks for the lesson Uncle Jimbo.

[@getplayed1860]

Hey Jimbo I don't know if you read your comments that often but I've been watching you for a while and I love what you do especially at your age not that you're old😅 I just don't see many older folks handy as much as you are. Keep up the amazing I can't wait to see the supercharger video

[@stephengreen3566]

Thanks for the videos and the humor.

[@EdsonMKingKarzo]

Excellent video series I love all the theory and planning coolest Honda out there to me

[@eslmatt811]

Great explanation of all the ideas, what works and what doesn't.

[@otter9099]

I look forward to each new episode. Great projects abc the perfect mix of humor to make pleasantly entertaining. Thanks Jimbo

[@seymoarsalvage]

What I love about this channel is Jimbo doesn't just show how it's done, he also shows how it's NOT done and explains why for both

[@robbyjay8119]

​@@johnnybagofdoughnuts4193💯

[@johnnybagofdoughnuts4193]

@@seymoarsalvage🎵”I ain’t afraid o’ no gays!” 🎶

[@SamwiseOutdoors]

I love a show that teaches us how to do the wrong thing the right way.

[@cubitus4858]

Thanks very much Jimbo for your videos! I do learn so much and especially this and the last episode will help me put an electrical vacuum pump on my oldtimer 🙂

[@marcosross8670]

I was awaiting for another video, as a brazilian we call this a "Gambiarra"

[@sterling1395]

Thanks for the great video Jimbo!

[@terrybottoms3983]

Educational and entertaining, thank you.

[@bhash96530]

The marsupials will appreciate your quick brake response time

[@michaelblacktree]

I just learned something about electronics. Thanks, Jimbo! 👍

[@graemediesel2936]

As well as enjoying the Robot cantina video I learned something new about relays. Thanks Jimbo

[@flyonbyya]

Fascinating Just a few years ago… none of these electronics would be cheap and available.

[@bumboclat]

You could reduce the box he uses to a handful of standard components that only cost pennies even decades ago

[@flyonbyya]

List out the components complete with part numbers you’d propose

[@bumboclat]

@@flyonbyya any regular bipolar transistor and a cap to build a solid state relais, plus some diodes for protection. Values and amount depending on the desired effort. Discrete electronics are super cheap if one knows what he's doing.

[@bumboclat]

@@flyonbyya could also do ne555 circuit.

[@darwinskeeper421]

I actually found this very interesting because I have toyed with the idea of electric vehicle conversion and electric motors share one thing in common with your diesel, they also don't produce vacuum.

[@roberthoffman4713]

As always I enjoyed your video. Talking about adding capacitors brought back memories of when I raced slotcars and guy's would add a bunch of capacitors to their controllers to get any advantage they could. I can't wait to see the next video.

[@LukeSchiralli]

Everything about this channel is perfect

[@EpicBigWhale]

Nice Video! always a good sunday when you post a video. Cheers to you!

[@markmonroe7330]

Excellent presentation. Thank you. This one was extra "good".

[@charlesakin1908]

I really appreciate all the little experiments you did, I never thought about the solid state relay. I have some sitting around and that might work for similar circuits.

[@zyzzyva303]

Nice exposition of the problem and solution Jimbo. Keeps me coming back for more! I almost thought you had a 555 timer in your future, but there's always something reassuring about off the shelf components.

[@victorthecarguy3126]

A nice use of electronics to debounce the vacuum switch. A reservoir canister inline near the pump and moving the vacuum switch near the booster would have done the same. Pressure drop with flow in a vacuum system might surprise you if you run the numbers. You end up near sonic easily. It's your show, which I enjoy greatly. Thanks.

[@alexnute9818]

Great work and love the series

[@BartStapleton]

Very well explained about circuitry and engineering!

[@stanlee1963able]

Top of the morning Jimbo. I always look forward to Sunday mornings spending my time with a cup of coffee and a robot.

[@timbillt5053]

Much love your videos always make my day

[@gclsarnia]

Wow today's the first time I viewed the main page of your channel. I've always watched via suggested videos etc. So I never saw your Spit till now. I really liked my Spitfire. What a fun and easy to work on car. It's one of the few wouldn't mind owning again.

[@cedhome7945]

Love to see the ins and outs of this stuff, personal I don't have a clue as to what electric stuff does but it doesn't mean I don't try to follow what's going on .odd really because I made circuit boards and tested stuff for over 13 years (put board in jig press button light goes green or red put board in good box or re work box )

[@dwartfarquart9590]

Always entertaining Jimbo, Thanx

[@JD.Stone.U.T.M]

A very informative video, found it very helpful with my brake booster issue

[@Northwestprepper411]

Love this channel, came across it recently. Great educational channel.

[@safetylast911]

Love sunday morning with jimbo

[@jamesleavy883]

Just wanted to say the addition of a vacuum reservoir would help more than you think. You'll be pulling a vacuum on a rigid object. The brake booster diaphragm isn't sturdy enough to act as a consistent reservoir with the setup you are using, especially considering the booster wasn't receiving a vacuum for a long time, it is likely stretching a bit. Also, the diaphram will creep a bit every time you use the brakes and will never "settle" under driving conditions. So I would recommend you use a reservoir still

[@otm646]

His arrogance bites him again. If he just tried it he'd see. Some of us speak from experience and don't rely on what we think will happen based on a diagram.

[@jamesleavy883]

I would say that Jimbo thinking the unassisted brakes were acceptable was the arrogance. I'm happy he's using the booster at all. As an automotive technician, I know that the booster isn't a reservoir. And I don't think the pump is a consistent enough source, and he shouldn't rely on excess vacuum to compensate. So, it needs a reservoir to be safe and consistent anyway. But the consistent part would likely have solved the chattering issue.

[@toyotaguy1984]

Wanting to do a kubota diesel swap in a toyota 4runner. You have no idea how much your videos have helped me. The vacuum booster was something I had been wondering about. This will be perfect! Thank you for your videos Jimbo!

[@anasevi9456]

From the way things are going the man wants this thing DOT approved for mass sale. Honestly given all the jank-jobs to not even or at best barely road legal; i cannot wait to see how far he goes to that aim.

[@PreparationH1]

It looks like you figured out a system that works well. If it hadn't I was going to suggest a high/low relay similar to what a well pump uses at the holding tank.

[@Garthinyus]

Rockauto is usually much cheaper than the jungle for automotive stuff. Love your videos.

[@BleuCollarFndryMTL]

Great job, you impress with your skills!

[@brandonboulton2776]

I agree with using the brake light as backup switch for redundancy. That's nice 👍.

[@BillyBob-uc9zp]

Well worked out Jimbo!. Turn the boost up!! 😎

[@ex-engineer6657]

Thanks again. OMG, The o-scope! The handshake sound at the end! Ahh, memories. I even used to know the sequence and significance of each sound. You too, I bet. Just the fax, man. ;-)

[@paulstatham8665]

Jimbo . Awesome!! I love your wiring experience expertise and explanation. ( lots of Es) The wiring diagrams bring it altogether. Keep up the fun work. ( I know that sounds funny)

[@ferrarikingdom]

Only commenting to stimulate the algorithm. have been watching for a long time, really enjoy all your projects and sense of humor. Nice scope btw , I have a keysight 3kgx my self.

[@robotcantina8957]

Awesome, thank you!

[@nap8187]

Loved the video, Jimbo!

[@frankr6702]

great video love the bit with the schematic

[@msamour]

That looks like a really nice setup!

[@marlinnotfish]

I used the exact relay for my heated steering wheel retrofit on my 2003 Dodge Ram. I installed a 2018 Laramie wheel that had built In heat, however when I began reverse engineering the controls I noticed the heated wheel worked off of a built In thermistor that sent a temp to the computer to determine if it should send power to the element. Long story short I used this relay In your video to jog power to the element to maintain a constant temperature.

[@RussellDossett]

Another amazing video thank you for your amazing explanation 👍🏻

[@petroelb]

I was just driving through rural Kansas the week for work and I was keeping an eye out for a diesel powered Insight!

[@PaulinesPastimes]

So very interesting to watch and learn from. 👍