the Technical Side of Balancing a Crankshaft with Gerald! Is it IMPORTANT? Brand Racing Engines

[@justinshearer3016]

all the voodoo of taking parts to the machine shop is slowly being revealed on this channel and i absolutely love it!!!!! nice job Mr. Brand!

[@dbeelee8564]

Take the engine voodoo to the doctor. Dr. Brand will put some good juju in your engine.

[@theoldmansgarage]

Same.

[@mikeferland9185]

Now if Bill would become a fuel tech expert that would be letting all the secrets out

[@bradskolout9712]

Does the rod ratio have any effect on the % you use? We are running really high ratios 2.0 and 1.96

[@saddletramp1979]

He lost me there for a minute, but when he got to frequency in relation to RPM I started to understand again. That's pretty cool.

[@JoeC-u9x]

Man that's unrealistic I've read about tesla and frequency where he collapsed the building by using the same frequency the building was omitting explains alot Yamaha making moters and helping other car company's build there moters thought it was about design really good video changed my perspective on engine building big time thought getting good parts is all needed to go fast thank u for the video do you grind cams by chance

[@toddjones5382]

Thank you. That explains a lot. It's no wonder Chief goes to you.

[@waynesasser881]

You should have been a teacher, Sir. I've had many rotating assemblies balanced during my 70 years, but I never knew just how entailed the service actually was. Thanks for the lesson! I have a new respect for the guys at the Speed Shops.

[@BrandRacingEngines]

I was the teacher assistant in vo-tech to the night class when i was in high school

[@captainwhiplash]

I know right

[@shanewatters4967]

Thanks for the info Gerald. You've gotten so much better in such a short amount of time of filming/taking and explaining. Not that you were bad at all. Just meant your doing great. Have a blessed day brother.

[@BenjySparky]

Thanks Gerald for the ways of balancing a crankshaft. I or I'm guessing all of us appreciate all of the information that you are giving us! Peace

[@jesschambers6551]

Thanks for putting in the effort Gerald! We all appreciate it

[@michaelvineyard8164]

Man you went from crank balancing straight into suspension tuning …. We know where Chief learns all his secrets now 😂 Great video !

[@petegonzalez8060]

Never would have thought I would have figured out how instant center worked while watching a crank shaft getting balanced . You are the man Mr. Brand keep the content coming we're here for it 👏

[@gstyle2654]

I believe it's safe to say I will NEVER balance a crankshaft. BUT, I still studied today's lesson and I feel my brain 🤯Lol... Great video Mr Brand!

[@dougderby9454]

Machine shop I went to for over 20 years close. It has been in business since the early 60s. Owner passed on. The crankshaft specialist had done nothing but cranks there for 39 years. I have 15 done by him as my own inventory. Not sure I will find another guy as skilled as him.

[@sautry31]

I have always been fascinated by the great work you do. I could sit and watch and listen to you for hours. Thanks for all you have done for us dirt racers over the years.

[@krusty6381]

Best explanation of harmonic resonances I have ever heard!!! 4 years of Mechanical Engineering no professor every explained it better than you just did...🤯🤯🤯 Love these technical video's keep up the great work!

[@Pyle81]

I love listening to ppl talk about this type of technology and the experiences that they have used in. Thank You Sir, your videos are always very informative.

[@ericehrenberg6524]

The knowledge and experience are priceless! Just don't stand in front of it lol Everything in your shop is very cool thanks for sharing 👍

[@kevinlarrick3285]

Thanks for sharing your knowledge with all of us. If you don’t share the knowledge that you have and pass it on and we don’t have anybody to go to to do this anymore the younger generations aren’t anything like this it’s nice to have somebody that you can ask questions and get good answers, and keep up the good work your videos are great

[@edsmachine93]

Great video Gerald, I appreciate your explanations and experience. I hope this convinces people that balancing is not a luxury but is very necessary. I have always been an advocate of balancing. And yes, every engine is different and unique acording to it's design and use. Thanks for sharing. Have a great weekend. 👍 🇺🇸👍

[@billk9628]

Before I was born, my parents both worked for a man named John Schleper, (Schleper's speed shop) in Brookfield Wisconsin. Now Propower Motor Sports. Anyway, about 5 years ago I went with my Mom to John's 80th birthday, and had the chance to talk with him about this stuff. I have about 300 diesel engines under my belt myself, so I get it. But it was really cool to hear this stuff from someone who was part of the pioneering of this tech. He told me the hardest thing to find these days is someone that can run a manual crank grinder. Everybody runs CNC and the skill of running old school tools is fast disappearing. Today's mechanics don't really get how to do this stuff. My dad used to grind cams for him back in the days before I was born, I'm 57 now. The idea that you could just order up a cam from jeg's didn't exist. The only way you got a new cam was to make it. You didn't have tech bulletins, or spec sheets, or even an idea of what worked best. You had to try it and see. Then prove it on the track. I wish I was able to do some of this stuff over the years, but I am out of it these days. Thanks for sharing the knowledge, and pass it on to whomever you can. These are dying skills that need to be saved.

[@aaronbohl8234]

Love learning this stuff. My dad worked 37 years as a manual machinist at Cincinnati Milicron. It all seemed like wizardry when I was younger 😂

[@rogalandimportservice6747]

Nice informative video, added bonus with the nascar stuff with reising the rpm to get out of the bad frequense area 😊👍

[@benrossbach6501]

Thank you for sharing your knowledge. Your channel has become my favorite.

[@captainwhiplash]

Thank you. I’ve had it explained to me a couple times and left understanding it less each time. But I’ll be damned I understand it now ( at least for the most part) wow you have a special way of teaching for sure. Thanks again

[@joshuacarter3110]

Stumbled on your channel this morning from another channel that I try to learn from but he's too hard to follow.. watching yours I understood every concept immediately! Thank you for the knowledge and keep it up, I hope you get more recognition you deserve it.

[@DScaglione.]

Nice work Sir ... looking forward to more G.B. goodness! God Bless! 😎 Nice Going Rhett !

[@BrandRacingEngines]

thank you d scaglione!

[@dwaynekaye2000]

Excellent info sir, thanks for taking the time to walk us through what it involves in balancing the crank.

[@uncleremis69]

Thank you Mr Brand for another informative video. I had no clue that the Buick v6 crank was so different.

[@jeffreyworthington7558]

The high vibration frequency you're talking about is called a resonant frequency or a critical frequency. Everything has a resonant frequency. Changing Mass or Stiffness will change the resonant frequency. Excellent Video. Keep up the good work.

[@stevenbelue5496]

I think what a lot of people could relate to is a tire/wheel slightly out of balance, when you hit that certain speed or in this case frequency it balances out and it’s smooth sailing.

[@BrandRacingEngines]

@@stevenbelue5496 Oil school bubble balanced tires LOL

[@flipfloptanlines926]

Thanks for the sharing the balance percentages and the balance info. The secondary which occurs at double the frequency are specifically referred to as a harmonic. 1st can be 50, 2nd 100, 3rd 200, 4th 400 and so on. Im enjoyin your content and look forward to the next.

[@Hogiewan1]

Thank you for taking the time to teach even old guys like me. I’m working with a local machine shop on a junked Vortec 383 deal, so this is perfect.

[@johnratcliff]

You don't have to respond to my comments! I don't take it personally. I'm sure others feel the same way. We don't want you to get burned out doing all that! Your videos are VERY informative and it would be a shame if you stopped! I have been a machinist since the early 80s. Most everything except jet and automotive engines. Watching your videos makes me wish I had gotten myself familiar with automotive engines! Thank you for continuing to share.

[@inscoredbz]

So, I guess when you go 51% or more, that is what's called an overbalance. I always wondered what that meant. Thanks, I learned something new.

[@DependableAutoTruck]

great job have had a lot of engines done but knew about the bob weights but never knew how they arrived at the correct weight. i knew they weighed the pistons, pins, both ends of the rod. thanks for going to the trouble to explain

[@f88pvc]

keep doing what you do best the rest will come naturally as time goes on loving the content love from the uk

[@joeyduncan5804]

Thanks for showing us this and explaining it to us gerald

[@Garyganeu]

I worked on rotational equipment in the HVAC field. Mostly fan supply units and studied vibration and frequency. Had a cheap vibration meter but when used with some knowledge and experience I could find worn bearings ,pulleys and cracks in motor plates. some big equipment has vibration monitors permatley on them.

[@Justin-iw7pl]

I would like to take the time to congratulate you on doing an amazing job. Without people like you and your knowledge, experience and passion a lot of folk would struggle to at least have the option to save a motor. Its a dying art and i really hope the baton can be passed to someone. This insight into what happens to a motor is priceless imo Your ability to explain it in a way not to confuse folk second to none. Keep the vids coming I hope Justin and Jackie had some influence on getting you to make these videos Nice job Gerald 👍

[@vinmandich7756]

Great job Mr brand you remind me of my uncle back in the early 90s teaching me performance machining in his automotive machine shop I worked for him many years honing the skill you are going to go places on here keep up what your doing

[@brianstephanierobertson357]

Thank you for sharing your knowledge about engine building and machine work, lots of tips and tricks people pick up over the years.

[@kavemanbites]

I wish we had access to more craftsman like you. It was cool to look over your shoulder as you did your thing!😁

[@michaelwynne4346]

Thanks for taking the time to explain this Gerald.

[@RichardDesrosier]

Great Job!! A lot more goes into it than I would have thought.

[@ronmedenwaldt]

Awesome. You sir are very detailed oriented with your work. TY for sharing!

[@mikemaccracken3112]

Excellent video Gerald. Thanks for the information.

[@22waysoutdoors]

Good job! Talking to a camera when no one is on the other side is awkward. It gets easier the more you do it.

[@z383tpi]

Please document an entire balancing process!!! I learned this in the early 2000s, and would love a refresher course from an experienced professional. I machined a 383, out of a stock 5.7 using Eagle's "balanced rotating assembly" (boy, were they off), and switching from internally balanced, to external was a pain. (Needed mallory) Anyways, looking forward to the growth of this Channel. 👍🏻

[@stevepavey5954]

I used Gerald for my engine work back at when I raced. He for sure knows what he’s doing. Never had an engine failure related to his work.

[@weedave367]

Awesome video, Gerald. Full of great information. 👍

[@H3110NU]

Thanks! Great video Gerald, and welcome to KZbin.

[@johnwellwood46]

thank you for sharing that with us Gerald

[@mayhemsmaster5050]

This was awesome... THANK YOU! I am not mechanically inclined by any stretch of the imagination. I am a retired paramedic, and what you described with crankshaft, harmonics, vibrations etc, very much reminds me of some of the finer intricacies of how the cardio vascular system functions in relation to the central nervous system and how they affect the other systems of the body. I know I know completely different worlds, but I found some of the similarities interesting. You rock Gerald.🙏💜

[@youKnowWho3311]

I am a prior F-15 Crew chief, who now does tech. Understanding hydraulics helps a lot in understanding the mechanical fluid dynamics of the cardiovascular system. It's basically a closed loop hydraulic system.

[@RonniePTexan]

Oddly enough one of the most curious things about the world is that everything has a frequency. The human body has a frequency of 7 Hz if I remember correctly. Every element has its own frequency. Every atom is vibrating at a certain frequency. It's strange how it works, and only Mr Tesla truly understood it well enough to put it to use.

[@Chevydude1982]

F1 engines can turn over 20,000 rpm but is regulated to 15 and they are alot smaller displacement then the coyote engine. I think the problem they're having is from cheap manufacturers. Awesome video as always sir. Thank u

[@Durwood1492]

Mr Brand reminds me of the teacher in school that no matter what he was teaching he made it interesting. I found this vlog very interesting Mr. Brand. Keep them coming

[@POSminiracer]

Really informative and educational Mr. Brand.

[@oikkuoek]

Hmm.. There certainly is more than one way to skin a cat. Good video! Straight to the point and the explanation was solid. Definitely liking the style.

[@everettoakes3153]

Great video. I didn’t know how much went into balancing a crank.

[@yattaran1484]

Thank you for posting the video. I love watching this kind of technical video even if I don't understand full of it. But I promise you I try my best to understand ! 🙏

[@danielmutum6652]

Thank you for your patience telling us the best way to go about this!!

[@bryanwirth1661]

Thanks for Sharing Your Knowledge , this is the difference in making an engine live and throwing one together and wasting your money

[@magnusdanielsson2749]

Nice video 👍 Balancing is an interesting topic. Especially when you talk balance factor. Some ford engines use 35% while others 55% wich seems a big spread. The machinist I hire doesnt think balancing of the crank is that important for a street engine. He actually turned down taking my money for it. 🤷‍♂️ He does weight match all the rods/pistons to less than 1gr however. Even does it on diesel tractor engines.

[@tobiemitchell7349]

Thanks for all the info Gerald, keep it up.

[@d.mcdave8880]

Awesome! Being able to see the process and the theory makes it all easier to digest and understand. Thank you so much. You really are a good teacher and I am sure this video business will get easier for you quickly.

[@joshuahonel7321]

Thanks for sharing! I look forward to the next video

[@josephnickola877]

I found this to be very fascinating. That's the first time it's been explain like that to me. Appreciate it. Thank you.

[@jasonblack8639]

Thanks for taking the time to show and teach!

[@Dee-uz5nu]

Awesome video another good channel shout out to chief for sending me here

[@GrandPitoVic]

Yes, it's very important. Especially for longevity.

[@stainless57x89]

Fantastic information. Excellent video thank you. Looking forward to more.

[@rolandgutierrez813]

Love your video Sir , balancing is so important in high rpms !

[@timrussellguitar1516]

Love you channel Gerald. I used to build race engines in the 70’s and 80’s , wish I knew then what we know now.

[@BrandRacingEngines]

Thanks

[@izzykustomz]

Thanks for the videos with this kinda info and keep them coming!

[@randymayton-ne7os]

Over my head Gerald, but VERY INTERESTING. Thanks.

[@BrentAllen99]

That was great information! Keep the videos coming I really appreciate you sharing your knowledge with us!

[@DURRIESVISION]

Thank you very much, you explained it very well. You are doing a fantastic job. Keep up the gr8 work 👍.....🇦🇺

[@kwasg3]

I don't remember the exact story but I think Mario Andretti or someone in a penske car anyway was dominating the indy 500 and slowed to conserve the car, and dropped it out of its balanced operating zone and blew up after a few laps....

[@johngoodwin2384]

Good to hear you voice again, Gerald. Glad I found your channel. One of nicest guys I ever dealt with. I like the no holes balance 🏁

[@BrandRacingEngines]

How's retirement. Hope all is going well.

[@johngoodwin2384]

@@BrandRacingEngines Retirement is all I wanted it to be ! Life is good here in NE Arkansas, grandkids seem to tolerate me. Wife, too. Take care 😎

[@blueyhis.zarsoff1147]

Love the grinding, never liked drilling a crank, it seems wrong that your removing excess material as your not removing it from where the issue is

[@roberthumphries6085]

Cool video!!! I have done some balancing,we where less than 10 milligrams and rpm’s up 30,000. Thanks for sharing!!!😎

[@brandongraver8458]

Mr. Brand, your the man. I am interested to see if you would share some more Buick v6 knowledge with the turbo Buick crowd. I would love to see a series on Buick turbo v6 tare down and rebuild with all the steps in between. Thank you for all this awesome information

[@BrandRacingEngines]

Have not had a Buick in the shop for over 2 years.

[@RENEGADEX800]

Thank you so much for starting your channel.

[@partsman6815]

I ever seen this done but I have paid to have it done in my old racing days . Very cool. Thank you

[@MrVelocity111]

Thanks Gerald for allowing us into ur world ur amazing

[@chrisbryant1657]

Awesome! Thank you. Very educational!

[@rolliefoster2837]

...great video ! Love the tech explanation !...

[@rodneyhudson4252]

Thanks for sharing

[@Krazy_one]

Another video! Nice!

[@goldenwheeledbanshee9160]

U do good work. And u're catching on 2, this KZbin stuff 2.

[@christhomas5794]

Brilliant job of explaining it, sir respect from the UK

[@hughchisolm3613]

Awesome job SIR...

[@ToranFilippi]

Hi, Admiring your youtube videos, it’s something I did for years…….performance V8 engine machining, balancing, line honing etc. Regarding balancing and frequency. A slightly different way to look at things is Frequency normally references the rpm or speed of the peak vibration “severity”, normally measured in mm/sec. For an example if the peak vibration is 8 times the rotor speed (this is an example) or in our case 8 x crankshaft speed (rpm) them we are not dealing with an out of balance issue it’s possibly a cylinder issue, 8 cylinders. 8 x crank speed, severity peak frequency is 8 x rpm. This is purely a example and I hope that makes sense. Then there is the issue of rigid rotors versus flexible. A crankshaft can leave its rigid state at a certain rpm, let’s say 8235 rpm the crankshaft is flexing…due to physical forces acting on it resulting in vibrations known as harmonic frequencies, reduce or exceed this rpm and the flexing stops and vibration stops. This is very common in tailshaft balancing and can be corrected using balance weights however with a crankshaft having a internal counterweight configuration along with rotating and reciprocating forces, 5 x mains, cylinder pressures and firing forces, the change in rigidity state is impossible to duplicate. Plus who wants to spin a crank at 8235 rpm with bob weights hanging off it. Run for cover. The jigs you use are amazing, how it improves the accuracy and ease of completion, you are always thinking outside the box that’s for sure, brilliant work. Cheers

[@robertwalker6031]

Gerald thank u filling in the spaces to my knowledge bank and enough info not to be boring but enough to keep me watching good balance of vid and knowledge keep it up 👍

[@f5garage401]

Good stuff. Thanks

[@SARJENT.]

Awesome video dood.

[@vrm86gt]

Thanks for sharing!

[@Mr688895]

Great video. Very informative. Thank you.

[@bartelellertson7799]

You are awesome sir.old school rules!

[@jheibeck6059]

Makes sense thankyou for the break down.ive seen Steve Morris's video on it he showed the how and you answered the why for me thanks again

[@fr.rustymatheny7707]

Thanks, i reckon second order harmonics matter in most things.

[@cavemanballistics6338]

Valve train reciprocating mass sends a lot of harmonics back down into the bottom en of the engine also.

[@BrandRacingEngines]

Valve train tears up a lot of things people don't think.

[@johnunruh1086]

Another great video!