Prevost bus breakdown was a huge blessing. Very dangerous series of mechanical failures.

The Prevost bus breakdown right before a big trip through the Rocky Mountains in winter conditions was a huge life saver! This could have ended very badly with all that water in the air system. Frozen brakes among other air system problems.

[@aussiebloke609]

Dayum...Lenny sounds _so_ good when accelerating under load. Music to my ears. 👍

[@williamgurtner4759]

Lenny to the rescue! He sure sounded excited, pulling out there, Scott!

[@BusGreaseMonkey]

He is fun to drive.

[@awkwarddude]

Just like "old times" back when I discovered your channel and you were on the road living in Lenny going around the country. You've certainly come a long way and attained some amazing goals, Scott! Well done!

[@Wayoutthere]

Bestest engine sound ever

[@TonyLasagna]

@@BusGreaseMonkeysounds fantastic.

[@zeeblats]

If everyone who bought a bus or rv were to watch your videos, the world would be a safer place.

[@ikonix360]

And some would promptly sell theirs.

[@gavinferguson]

i still find it amazing that anyone can buy and just take off in an old bus and drive it with out an idea of how it works or that you don't need annual inspections

[@typhoon2245]

That back in pad you built looks to be paying off. So much safer than jacking up and looks like you can quickly get things done with it.

[@BusGreaseMonkey]

For some jobs it really is great

[@blobscott]

Lenny's engine is running so well! Great sound, no smoke! Plus the whole bus looks amazing with the new paint (of course)!!

[@daveharper5655]

You save lives for real. Please keep doing this because from my experience you are one of the few who are doing the work properly, in this day and age it is becoming quite rare. I wonder if Jonathan realizes the enviable position he is in being able to learn from a professional such as yourself. Be blessed Scott and say hi to your family for me and maybe let your son know I would love to see another video from him again.

[@mytwocoins]

Great footage of the drive. Lenny does sound like a beast. How fortunate for the timing of the breakdown. Glad it was not a horror story in the Rockies. Whew.

[@cosmos7492]

Great to see you guys back on the road again Lenny just sounds awesome could listen to that beautiful engine sound all day love the new cam

[@larryporter5035]

LENNY IS LOOKIN AND SOUNDING JUST AWESOME!!

[@SuperMAZ007]

Love the Lenny cam, you can hear the screaming jimmy wide and clear. One could say: breakdowns save lives.

[@JD-zm4eh]

Lenny sure is a sweet ride. I love the sound of the ole 2 cycle engines, hearing that turbo whine is music to the ears. I remember riding on a bus like Lenny in the 60's when I was in elementary school and we went on a field trip with the class. When the buses are made into mobile living spaces you think that someone might think about the access panels inside for ease of maintenance or repair.

[@carlbernard4197]

Yes most definitely. Never block access points for maintenance! Will save you the owner of the bus major headaches and expense. Service facilities charge by tge hour on labor so will be additional costs if the crew has to disassemble additional parts to successfully fix the actual problem 🙄 😊

[@chrisprovan4896]

Lenny climbs the hill like a CHAMP and sounds fantastic doing it!

[@h5mind373]

If I ever find myself owning one of these conversions the first thing I'll do is make sure a mechanic can get to everything important.

[@jamiesuejeffery]

I'll never forget one time when I was driving commercial (we had over 100 coaches in Ohio). We were on a multi-coach move and one bus had a part of the air dryer system (somewhere under the front axle on an MCI 102 60 series 45 (I forget the designation) that would blow off every 30 seconds in the freezing cold Ohio winter. My boss, who was a certified mechanic on MCI (and some aircraft!) came out, crawled under the bus, got the stuck valve unfrozen and got us on the road. I don't know what happened to him, but I will never forget him.

[@parker1ray]

In 1977 we bought a new GMC dump truck with a Detroit 6V71! I do miss that sound!

[@davidbarnsley8486]

I just want to drive old Lenny to hear that beautiful sound Pedal to the metal Scott 😍😍👍👍🇦🇺

[@jamesmckenzie3532]

Nice video from Lenny's new camera on the road. Lots of gunk and crud on the air dryer. Had the pleasure, if you want to call it that, of manually purging a wet air system. Nasty smelling stuff.

[@michaelzang9739]

Maybe I missed it but that wire goes to a heating element in the bottom of that dryer. When I did maintenance on them units, I also use an ohmmeter to check the heating element.

[@rocnnrollbus]

Oil and contaminants in the system...when I worked on big trucks back in the day I found that the head gasket on the compressor went bad on a Western Star I was working on. Changed the gasket, purge valve and governor , air dryer cartridge, drained the tanks cleaned it right up

[@2807204]

Lenny sounds great!. What a difference a little love can make to your bus...

[@RollinHomies]

When I bought our eagle it came with a bucket of spare parts. One of which was an air governor. I had no idea that it was an air governor until I watched this video 😆 Thank you

[@clintonmississippi2108]

LENNY, I never expected such complexity in the air system. But that bus was built for safety and few breakdowns. Also it sure is nice to be able to order a rebuild kit for a component and not have to guess and worry about parts individually purchased. Very enjoyable video keep them coming. And also noted "That engine sounds great". Sam

[@russoley8995]

Real nice to see kid that wants to learn and not afraid of gettin dirty

[@simsjef]

Lenny and his people to the rescue - one thing is apparent watching Jonathan work, he has a lot of hand strength. Some repairs are a matter of life and death. Very interesting episode.

[@scottbenjamine4890]

Scott, i wish there was a way we could clone you and have you at every weigh station, and truck stop in america, because you would save so many lives per year! just think about how many you have already saved, and dont even know it, because you found the problems and fixed them before they became a wreck. god bless you for what you do!

[@billintexas7061]

Another good save Scott! You guys are diligent in tracking down issues and don’t just throw new components at everything. Always a pleasure to watch you solve issues. Keep up the great work.

[@tedhamilton2362]

Shows having a good mechanic on speed dial PAYS!

[@malcolmyoung7866]

Amazing the issues that you come across in almost every episode.. that air fitting nearly worn through etc.. Bus conversions are great… working on them and around the issues the conversions themselves bring up not so…Love these videos and kudos for getting stuck in there and getting your hand dirty!

[@davidevans8611]

I drove MC-7's and MC 9's in one of my jobs..I loved them. I almost bought one years ago but a 30' Gas Winnie ended up in our household. After viewing all your Bus Adventures I'm sure glad I didn't buy one to travel in our retirement. When I had an issue with our rigs, just off to the shop wrench dudes. No way could I afford what needs to be done to be safe and have fun on the road for retired David. Thanks for sharing what you do. 2 strokes ROCK!

[@wesleypulkka7447]

Scott, the recreational bus community is extremely fortunate to have your skillset and honesty to rely on! When safety issues arise on these very heavy vehicles you step in to save the day! Mega kudos! PS Lenny is one very sweet running bus! He is your magnum opus!

[@solidwoods6999]

Plus he is centrally located in the US (TN. sounds OK to me)

[@theunknownkeyboardist6154]

When I was first driving back in the 70's, the 6/71 was very common in tractor trailers. I never was much of a fan because they just didn't do much with an 80,000 lb vehicle--they'd smell a hill a mile away. But, watching these videos has renewed my respect for the 6/71. Powering a bus is a much more reasonable request for it rather than a tractor trailer. Doesn't hurt that it sounds great, too.

[@markhumphrey5409]

Lenny looking and sounding good. keep up the good work.love your work.

[@grabasandwich]

Imagine how many dangerous vehicles are out on the road at any given time.

[@kevinrhodes335]

Lenny sounds *glorious*. The new exterior camera is trippy!

[@alouisschafer7212]

What scares me is that the owners of these buses often dont realize that at the age and mileage they are at now essentially everything! needs at least a thorough inspection or rebuild.

[@johnny22single99]

OUTSTANDING!!!!!!!!!!. 🙂

[@timbrackett7973]

Big Note for new bus owners like myself leave access for factory stuff.

[@BusGreaseMonkey]

Very important to leave factory access panels accessible.

[@gwharton68]

What's scary is, that every time you work on a coach like this, there are 10 or 15 more running around on the highway.

[@RandyFreitas-hx9zc]

Lenny sure is looking smart and he seems to be happy and giving you all he has! Lol!

[@marty0715yt]

Thanks Scott and crew.

[@carlv8168]

What an incredibly challenging repair with such limited access to these components; especially that rear floor access hatch that was carelessly covered up during the RV conversion. Too bad some folks don't take repair access issues into consideration before doing their RV conversion builds.

[@micheldavid184]

Hi Scott ...from Québec Canada

[@johngaither9263]

I was losing air pressure due to a faulty governor as I entered New Mexico on I-40. The entry port had a booth for officers to examine the documents of trucks. The LOW AIR alarm sounded as I approached the booth. I knew I would be put out of service if the officer heard the alarm so I turn up the radIo VERY LOUD and covered its noise. I then proceeded less than a mile to a truck stop to have it repaired.

[@user-ji7xi4sh6q]

Hey Scott I watch every single videos bus Greasemonkey keep your videos coming

[@58nunzi]

Think about all the people that lost their lives due to corrupt shop owners. I wonder how guys like that sleep at night. Every one of them should be exposed. It takes a certain amount of dedication to do this work properly. It's tough work. I am hooked on your channel and I'm a retired Carpenter. A big "thank you" to you and your crew.

[@carlthor91]

Friends that have run trucks from 20 to just under 40 years, get a rebuilt air dryer every fall. They used to be, just over $100 more than the filter and rebuild kit. Cheap insurance. All the rest of the problems do add to the grief. Best wishes all.

[@daviddamico4288]

Glad that you found the problem and are able to fix it…..Scott…

[@silasmarner7586]

Ugh. The whole build out of that bus is ill-planned, ill-executed, ill-advised, etc. What a mess. and that semicircular erosion on the rt. angle fitting? What the hey???? But good work from you guys!!!

[@user-gc6ow7ys2s]

Enjoyable video. So much better than TV. Lovely bluegrass music. No crappy rock bands. Hell even the dirt looks real.

[@richardgreene3460]

ABSOLUTELY LOVE the travel videos! It is like the GOLD shows from the past! Miss Kelly as well! PS Love the new cameras!

[@steves9905]

great content...love watching the BGM channel on a saturday morning. I've posted before that its very very cool to have a classic bus conversion, but you should be very mechanically inclined and enjoy the process, as well as a tolerance for breakdowns, ...or, have buckets of disposable cash and a good network of mechanics and backup vehicles, to run one of these OTR. Having a boy who doesn't mind getting greasy to skinny up around transmissions is a benefit too. And I would not have my business dependent on it being 100 percent operational...should be just for fun with the knowledge you got one running and can safely be on the road. I own several classic vehicles, no busses!, and that's where the satisfaction comes from

[@alekjuskevice]

I’m watching just to hear Lenny!

[@charlescastle5566]

Scott, man Lenny sounds and looks so good now. Hope you bring us back for a tour when you get the interior done.

[@scimi7994]

Jonathan has a fantastic tutor, he will be a great bus mechanic ❤

[@melmckenzie1176]

While the compressor is out consider making the governor remote and easily accessible and clear the purge line from the governor to the dryer with brakeclean and high pressure (140psi) air

[@stevehvac1]

Sounds like you have a hot rod good sound

[@63bbray]

You guys are on the right track. Dirty air going into the compressor gunked everything up, and now very likely the compressor rings are shot. Best to replace the compressor. You problem with the air dryer not purging could also be a restriction on the line from the governor to the dryer, line could be kinked or again plugged with gunk. Can't believe they built right over the access panel for the compressor. No wait, I can believe it. You guys do very nice work, your customers are fortunate.

[@Digital-Dan]

Good thing Sarah-n-Tuned is not a bus mechanic. Would be driven mad by the need to make all these surfaces safe to eat off of. 🙂

[@beverlymichael5830]

The rod in the canister removed da me of my oil filter on my 58 Massey Ferguson tractor. It is so long going down the filter into the block it takes forever to remove and screw back in. I always thought there must be easier way. Now I know there is not.

[@Charger1908]

Scott don’t that air dryer have a big filter on top of it? Mine has a huge filter and a desiccant. It had never been changed in twenty years, I had to pull the whole unit off and it was above the rear end. That wasn’t to bad but getting the filter off was a mother. Well keep up the great vids. Oops at the last minute I saw the filter, I guess the detroits have a filter encased in a sleeve, mine was a great big screw on filter.

[@rayfitzgerald4180]

Lenny sounds GREAT!

[@stevenbrowningsr1144]

So much more to RV's than most people imagine.

[@zmotorsports62]

WOW! I've seen some neglect on RV's before but that air dryer took the cake. It's hard to see but it also looks like some severe weather checking/cracking on the instead of the tires as well.

[@robertquast9684]

People need to have a better understanding of how the basic systems work of the vehicle they drive whether it’s a car or a large vehicle. There are many “professional “ truck drivers that don’t know how air brake systems are supposed to work. Once you know the basics then you start to realize when something isn’t working as it should

[@robertmosley580]

Lenny sounding strong!!!!

[@scottmulrooney8483]

Nice catch fellas!

[@Paul-gw6ow]

man that lenny runs good

[@greggkiest1069]

Just like myself i think Scott loves the sound of Lenny.

[@mikehunt908]

4:10 love that sound ❤

[@wildbill4655]

Lenny sounds so good Johnathan is a great mechanic what happened to your son ?

[@willb3018]

Can't get enough of that DD in Lenny.

[@isaacsims6203]

Good catch preventive maintence is important🙂

[@campokid1pr]

Lenny is running great.😊

[@southothehighway]

Glad to see that the pit is useful.

[@ryderphillips4464]

Gotta love a real clutch.

[@BusGreaseMonkey]

Not so much the clutch but the non synchronized spicer

[@scrumpydrinker]

Scott, after you’ve replaced the unloader valve and compressor you will need to get the vehicle onto a roller brake tester to do a comprehensive brake test. Given the horrors that you have already discovered you can be pretty sure that there are further serious problems in the air system with the amount of crap that came out when you were draining the air down.

[@bernardb8045]

Sounds smooth

[@ronaldheit196]

Incredible how much work you had to do to get that system to the point you did. Now it's on to more fun getting at that compressor. It's kinda ridiculous the builders didn't install an access plate.

[@Wayfarer001]

The youngin is good.

[@deadtreebark]

Lenny is sounding real nice

[@laudennn]

ill say it again, jonathan is a bad ass

[@danielswords3969]

You could put a boat deck access hatch in the plywood. Plastic , flush mount in several sizes available. Also, it’s a good thing buses don’t fly.

[@MiguelMartinez-gd1sv]

Wow Lenny sounds badass.

[@ineverhadthemoney7857]

sounds great

[@lloydrobinson7081]

keep the clips coming

[@realfreedom5029]

Good work guys, most wouldn’t be so thorough and would have sent them on their way.

[@josephalberta1145]

My compressor relief valve on my compressor is 250 psi on my Prevost. I was surprised it was quite that high as my normal running pressure is around 130 psi. I am not sure if the air dryer releases based just on pressure or if there are other factors involved. Interesting video.

[@frankstavalo5788]

Whoever is offering the vehicle needs to make sure the drain the air tanks. And that would have been caught sooner.

[@BusGreaseMonkey]

We added pull chain drains so now it’s easy to do

[@alekjuskevice]

I prefer using diesel and a paint brush for cleaning

[@jfree4513]

Lenny! Bad ass!

[@NikolaiAstaf]

Классное видео получилось! Мне понравилось! Круто Круто!!!👍👍👍

[@ChrisHarding-lk3jj]

This is all the more reason for enacting annual dot inspections and requiring licensing. Tour bus drivers are required to have a cdl and these are the exact same chassis's used on tour buses. As soon as it's called an rv licensing and inspections are thrown out the window. Dot inspections on seated coaches aren't just there to protect the passengers of the bus, they protect all the other vehicles on the road. This channel is proof of the oblivious bus owners who bring a bus in for a minor fix just to find out it needs the entire brake and suspension system gone through. Air brake endorsements need to be made mandatory nationwide along with dot inspections of all coaches over a certain tonnage. If these coaches were required to stop at scales and other dot inspection points half of them would immediately be placed out of service. The newest bus shown on this channel is probably 30 years old.

[@davidapp3730]

A great video. Interesting to see how heavy busses work. The inspection pit seems to be working good. You should have cast in stops when you poured the concrete. Any reason the walkway slopes?

[@scottgurne5174]

Does the Detroit diesel 2 cycle have a road draft tube like the cars did back in the 60's ??

[@joseantoniocastrellonjr2568]

Did you check the power supply to the purge valve heater? I also noticed the heater ground wire dangling. Need to pull one of the 4 heater mounting screws out to put that ground wire on. Good luck.

[@booman606]

Where has Tyler been? What happened to Lance's business? It went from growing like crazy and doing all sorts of renovations and upgrades to liquidating?

[@richardjulien8745]

Scott,what is the delay in miles between the time you have to change the carthridge on the air dryer... we are in canada. thank you for the answer.

[@LeeBlaske]

That video shot at 3:56 was pretty cool. How did you get that?

[@BusGreaseMonkey]

It’s an insta 360 camera and an invisible selfie stick bungee corded to the bumper. Very close to the tail pipe and captures the sound of the engine great!

[@davidowen888]

Lenny was in a hurry 😊 that was extra stinky 😂