DD3 air brake work. How dangerous is the spring in dd3? slow mo video of cam lock rollers releasing

[@corycoombs397]

That suspension looked amazing with all those parts good job

[@americanrambler4972]

1) First time I have seen a air brake spring chamber release. Impressive! I knew there was a good reason I never wanted to mess around with one of those things! 2) the first truck I had assigned to me when I went on my first solo run was a Freight Liner FLD sleeper with a Detroit DD60 with an 8 speed transmission. I could never figure out how to properly drive that motor. And I kept asking everyone what was the right way to drive it. I would take their advice and try to apply it. Never got satisfactory results. I was visiting a repair shop and I was asking about right way to drive the engine for best performance. A grease covered mechanic sitting on a stool off to the side with his feet propped up on the work bench chimed in and said to drive it like you hate it and want to break it. I thought he was joking. He wasn’t. About a month later, I was driving another truck while mine was being serviced and I found the original engine owners manuals like the ones you showed in this video. (The one in my truck has disappeared long before I got in it.) After reading the manual and learning the real specs and performance curves for the engine, I understood why I was having so much trouble getting the performance I felt was lacking. Plus all the drivers I was talking to were wrong in the right way to drive the engine! The company had governed the engine so that it topped out prior to max hp and when you reached the governor and shifted, the next gear put you 100 rpm below the rpm where the engine torque came in. According to the manual, below 1150 or 1200 rpm, the torque fell off a cliff. When I completed my shift, my rpm was between 1100 and 1150. I had to climb back up into the torque band to get back into the power curve. If I remember correctly, Peak torque was at 1750 RPM and peak hp was at 2100. Most of the time, the engine would govern out at 1650. I had the opportunity to drive a truck with the same engine and transmission, it was governed at 2100. It was a pleasure to drive. (The highway speed was governed at 64 mph) being able to start the next gear at 1150 to 1200 rpm and run to 1700 to 1800 between shifts made all the difference in the world. Made for a big improvement in fuel economy as well.

[@philipcastetter6757]

Much better video. Guess Kelly is on strike... Sorry to lose her video work. It was nice to see Lance again.

[@jimgoodman5123]

Scott, Love seeing you and Tyler work together and having so much fun... even when he tries to "neuter" his Pa with a ballistic drift pin!!! Y'all BE CAREFUL!

[@robertquast9684]

Drivers handbook for a Detroit. Slam hand in door and proceed to drive it like you are mad at it😀. Kidding aside I like how lance isn’t afraid to invest in his buses

[@Hntrsfanclub]

I was always taught with a 6V92 Detroit you drove it like you stole it and with an 8V92 you drove it like you stole it but you had the Police on your tail. Love the old Detroit two stroke. Unfortunately even in Australia they are a dying breed.

[@ServantofYaHi777]

Some of guys that once worked for me used to say, when he says it shouldn't be too bad , look out , I told them it pays to be optimistic.

[@hackfabrication139]

Another "Hey Lance' moment... Scott you and Tyler are pneumatic wizards!

[@2flyabove]

I really enjoy your videos, BGM. Thanks for the fun.

[@ikeandmary1286]

That how to hand book made me recall my old uncle (rip uncle Truman) telling me how to drive a GM diesel he drove truck his whole life, He said you had to be mad , some days he said he stopped ,got out and slammed his hand in the door, got back in and then it was OK Lol guys keep up the good work.

[@garyrobinson8991]

Good to see you’re ok after the recent storms....!

[@tazmun]

The old driver handbook said what you got to do to drive an old Detroit is first slam your thumb in the door! Now that you got the right attitude to drive this beast slam the throttle to the floor and jam gears just like your life depended on it!

[@markopolo945]

Good Morning Scott! Thanks for the upload.

[@hamdude2109]

Is that a vise mounted on a hitch? What a useful thing to have! Glad to have you guys online again, we've missed you.

[@LittleWapiti]

IIRC that was Scott’s hitch mounted vice that he gave to Tyler. Scott had it on his bus, but never used it. Ironically people kept telling him to buy one, but he never used it because by the time he got it out of compartment and hooked in his trailer hitch he could just get the job done some other way!

[@harryrenner3001]

As an OTR truck driver for many years I was taught run a Detroit right up against the governor and to not lug a Detroit. that particular style of brake can must have been more popularly used one on buses. as apposed to semi trucks but I had seen them before. the style brakes that were sometimes used were wedge brakes. primarily on the steer steel axle but I believe they are outlawed now.

[@johnbower7452]

And that was a small one; imagine just how powerful a 24/30 Brake chamber is... I know somebody that's seen one first hand. it went through the trailer and embedded itself in the ceiling afterwards.

[@thomgorman]

A mechanic, who I knew at work, was killed by an earlier but similar air brake can. He was trying to take it apart when the spring shot the piston into his chin and pushed his lower jaw into his skull.

[@andykeyes7616]

Awesome that you got that missile launch on video and nobody got hurt

[@joelmiller7]

My brother lost most of his front teeth from a DD3 spring ... won’t kill you but you live with the damage for a long time

[@BusGreaseMonkey]

I thought it was a cool way to show that they do have some energy stored in the spring. Respect the spring

[@ihrescue]

The first sign of Spring

[@clintonandrews1538]

If that cup blowing off at 4:39 went between your legs, you would definitely be singing on the other side of the choir! ;-D)

[@jeffr0]

4:38 I believe your son is out for his inheritance!

[@dannyyo7948]

once a 30/36 brake chamber exploded!!! now that was a spring. haha

[@jebsails2837]

When the air-brake chamber let go, it reminded me of the German Panzarfaust (aka bazooka). Narragansett Bay

[@heartland96a]

Guessing with a steady flow of bus repairs lined up that you might be planning on another shipping container to house your tools and parts inventory. Lenny must be 1000 lbs lighter not having to hold all those tools when you traveled to do repairs. The local related hardware , tire and other businesses must appreciate your being part of the town .

[@krankie49]

Hey Lance, pick up an SRK167 link rod kit at any truck supply shop. They are cheap and will last longer than that piece of general purpose hose.

[@derek6187]

Always a good time LOL, can't wait to see what's next :)

[@grumpystruckshop3807]

In the uk we used to call that type of brake pot, a lock actuator, used up untill about 1970

[@jeffersonspace]

It would be a good thing if someone, unknowingly, scans, and uploads those handbooks for the benefit of mechanics, and boy scout troop 319. Thanks Bus Grease Monkey, and friends.

[@MrTheHillfolk]

5:16 speaking of regreasing , when the parts washer degreaser in the shop gets too dirty , it becomes a regreaser.

[@nickinhb1]

I. like the hitch vice

[@joelongjr.5114]

Its a good thing you weren't messing around with a semi truck or trailer spring brake assembly. Those springs take around 2000 pounds of force to compress. Those are deadly.

[@clydeschwartz2167]

Excellent video

[@joeblough70]

Hey Lance! That Detroit Book isn’t near dirty enough to have been used properly.

[@w2dmw]

All those manuals should be uploaded in pdf form, on the bus grease mo key channel, free for all to download, to have the info for themselves....whaddaya think ??

[@QuinnHartmann]

Legal?

[@w2dmw]

@@QuinnHartmann well, yeah, I guess. There's a site, fix it, or fixer, ...something easy to find on the web. They have free manuals on everything from washers, dryers, dishwashers, vacuum cleaners, radios, and they are still there .....

[@alwaysbepreparedwithjeff3245]

Thanks Again For Sharing

[@artbrown6683]

i guess the first half of my message didn't make it. however i've experienced a booster blow. you are right not wanting to be on the wrong side of it. just do it right...

[@sidallen685]

I never liked the DD-3, we replaced them if we could with Maxi-Chambers when I worked at Trailways

[@brianherron5400]

For as old as those books are they are in great shape. Bus will stop now.

[@Tchristman100]

Why don't you replace those antiques with normal truck type parking brake cans?

[@jimmartin7881]

I saw an old Eagle with the conversion done.

[@shawnbeckmann1847]

In the Thumbnail Pic ...I thought it was the Sarlacc Pit from Star Wars lol

[@shoominati23]

I thought you needed an oil distribution license if you are taking one of those interstate

[@tsclly2377]

Copy the manuals and release them on PDF for those that can't get a manual...

[@javierbetancourt9388]

💯

[@wtbm123]

Cool

[@jerrykinnin7941]

Its been a long time since ive broke apart a brake chamber.

[@coyleatkinson]

enough said

[@joecummings1260]

I'm guessing there's not enough room to melt regular dual diaphragm spring break Chambers? Or is there some advantage to that cam lock setup that I don't know about?

[@tater_relocater]

That air ride leveling will not stay on with that fuel line trick might want to get a new one or put a bigger washer on it.

[@bruceknowling415]

I noticed that too, and would have fitted a washer right away.

[@BusGreaseMonkey]

There are big washers on both sides holding it in. The bushing has been missing for years

[@josephheston9238]

DD3 spring, very dangerous, but not as dangerous as a Super Beetle strut spring.

[@theoldbigmoose]

First time I did a strut, I didn't realize how long and compressed the spring was. I compressed it between the teeth of my backhoe bucket. After clearing the shaft by 4 inches and still compressed I realized I was into an oh sh_t moment... found the spring in the neighbors yard after bouncing off his shed.

[@Gigaguenther]

is that the kind of spring that applies the brake in the event of pressure loss? looks so different from the modern tristop-cylinders that i want to be sure

[@artbrown6683]

ll the power needed if the rpm's were right. of course the truck had no power steering so working it in the city helped to build muscle.

[@srrmiles]

Lance The Librarian😏

[@ebutuoyebutouy]

4:36 Ouch. Lol

[@enginecrzy]

COOL!!

[@danielabbey7726]

4:38 VERY dangerous! 😯

[@ronunderwood5771]

Be sure and put oil dry under that Detroit manual. Oil WILL leak out of it.😄

[@marty0715yt]

Hey Lance!!!!!!!!!!

[@maxpuppy96]

Could you change them over to standard truck air brakes?

[@tracygarron9490]

Drive it like you’re mad at it

[@aaronjarvenpa1743]

It’s safer to just buy New air break drums instead of rebuilding them.

[@bendent9002]

I have an eye for tools and I see with the green punch and the blue vice, you're not a fan of harbor freight are you? I just spent another 300 bucks there today on 2, 20 ton bottle jacks and a brawler buffer! To funny.

[@petersmith7140]

Isnt it easier and better to buy new or rebuilt by factory brake pots?

[@BusGreaseMonkey]

DD3’s are over $700 each without a good core. So no not cheaper

[@petersmith7140]

@@BusGreaseMonkey wow, thats lots.. I bet a rebuild kit is $150?

[@robertestes5887]

So you say that that part almost hit your thing

[@RVMD95]

Not a turbo but a blower!

[@jimmartin7881]

Some are turbo, 8V92T/A built to marine specs in my 4300 Transtar. 140 injectors, meth. injection and just a lil pump work. Should be good for at least high 600 hp if it doesn't melt first, lol.

[@patrickroher4760]

Does that driver's handbook say anything about your how to keep a wife from being critical of your driving?🤤

[@Dwohman]

Brake pods are not to expensive should just buy new ones

[@BusGreaseMonkey]

Over $700 each for dd3’s. Not sure what you think isn’t expensive. These are not 30/30 maxi brakes

[@dan92677]

the rubber bumper is on the way, I hope?

[@8068]

Same thing will happen to a Caterpillar brake chamber if you do not put a threaded tool in to the chamber to hold the spring force. (kzbin.info/www/bejne/Z3PbdWlsjrejjNk) (13:59).

[@davefroman4700]

In 10 years you are going to be able to make a living converting buses to run off electric. There is already conversion kits starting to hit the market.

[@terrydavis6132]

Be sooner than that , already having trouble getting rebuild kits for linkage pump Cummins and CATs. Welcome to comunisum .

[@nickwarner8158]

the cost to install, the horrible range and long recharge time along with cost of battery replacement won't make him a living converting them, it will make him a living keeping the old diesel stuff running. 07 and older diesel prices are going way up because the emission controls actually shorten the life of the trucks and make many thousands of non-useful repairs along with causing the trucks to burn MORE fuel. Yep, wrap your head around that one. If you live in SoCal and drive 15 miles to work maybe electric is worth it. Try getting your machine running at -25 in WI and driving it. Better yet, try taking it for a road trip and refuel within 15 minutes. You may have your green dream, but it isn't here yet. When it is, you'll be asking why so many natural spaces are Superfund sites because of lithium mining and battery disposal.

[@danielthechskid]

@@nickwarner8158 And you're still spreading the same old, tired FUD.

[@jimmartin7881]

@@danielthechskid Only because people keep dreaming, only problem with dreams is they only work when you're sleeping.