Last day on the boat twin 671 detroit diesel

Well it went from a non running boat. 2-1/2 days later it’s a running boat with two strong detroit diesel 671 TBI engines Johnson and Towers mega hp

[@DoRC]

Who the hell would give this a thumbs down?!? This is like the nicest guy in the world helping people out and not charging a ton.

[@stanpatterson5033]

KZbin is full of videos of people doing good things in various capacities, and still get tons of thumbs-downs from various people for various reasons. Some people don't like vertical video, so they downvote. Some don't like shaky-cam, so they downvote. Some don't like good deeds, so they downvote. Doesn't matter what you post on YT, there are idiots out there who will be jealous or envious or whatever mood they're in, and will downvote videos. It's just a fact of life. People are all different. Those of us with a few brain cells to rub together are lucky enough to be able to appreciate some things along the journey of life. Then there are those on the opposite end of the spectrum....

[@KStewart-th4sk]

@@stanpatterson5033 Well put and I will go with the IDIOT one!

[@buenaventuralife]

I want to thank Scott for coming by. No laying in a pasture or a parking lot in the rain. Sitting in a sort of air conditioned boat, rocking and rolling for three days shows stamina. Calling him the DD whisperer just does not sound right, and DD muleskinner is far off too. His sense of humour is tremendous as is his patience in explaining what he was doing. I needed to learn about these storied engines and he taught me well. The boat is an Ocean Yachts 46 Sunliner. I am rebuilding/recommissioning her. She needs a lot of work, but I could never feel good unless the engines worked. They now work. Great job and a fun few days. I recommend Scott, Bus Grease Monkey very highly. You can see more of my boat on my channel Buena Ventura Life

[@irredeemabledeplorable5227]

NUMBER ONE thing to do when you encounter a boat.......Pump off a gallon or ten of fuel into successive jugs. I use water gallons because they're opaque and give a good view of the separation. I deal mostly with smaller gas pleasure boats but the concept is the same. These huge marine fuel tanks with their huge vents are WATER FACTORIES and it ALL sinks to the bottom. Haven't played with Detroits since the early 70s but really enjoyed your MCI rescue and this boat one in particular. Good Luck to you.

[@BusGreaseMonkey]

Now you tell me ;) at least i caught it.

[@ThriftStoreHacker]

Judging by sound and how the exhaust cleaned up after the cylinders got some temperature i would say that those engines are in pretty good shape.

[@hungryhungryhummer]

I’ve never heard a nicer sounding inline 6 diesel ever.

[@rayg9069]

6-71T are a nice motor I ran hundreds of them as generators, 1500rpm all day flat out.

[@kevinhamling4675]

G'day Kevin here from Australia. As a relatively new subscriber to your channel I'm really enjoying your adventures both on land and now just a bit in the water. Your format for your channel is spot on. ✌

[@peteacher52]

Seconded, from an NZ subscriber.

[@junebrooks665]

really enjoy your vidioes from the UK here with a pair of 8V-92TAs 1 not working lol thank you ive learnt a lot from all your films

[@danw1955]

Man, you dodged the bullet once again on that stuck #1 injector. It's amazing how huge the injectors are on those boats to get the required horsepower! Just goes to show just how tough the bottom ends are in those 6-71's. I don't think I've seen an M15 injector before, even in marine apps. I would imagine those 2 turbocharged engines will play with that 45 foot cruiser once they get the rest of the gremlins out and the fuel tanks flushed out. Well done man!😁👍👍

[@garyplewa9277]

I'm surprised the fuel filters didn't have a water detector warning light and/or engine shutdown system, given the peril a disabled/damaged engine could cause in open seas. My 1994 Dodge Cummins diesel has a water-in-fuel warning light which consists of two probe wires, in the filter, measuring electrical conductivity, which is greater in water than fuel. Anyway, thanks for the video's Scott, they are always a pleasure to watch. Looking forward to your next adventure.

[@bnkwupt]

Super video series, Scott. I love the way a pair of Detroits sound running together. Best of luck to the owner.

[@smile3107]

I had an 8V71 in my boat great running motor never had any problems with it, Truly enjoy watching you work on these older motors. Great job and have something back out there so people can have a good time, Be safe and careful👍🇺🇸🚌🛥

[@jacklausch3517]

Very Cool helping the Bus Navy

[@AustenARW]

Thanks for the outside exhaust footage from that back!! Your channel is gain views fast! Good job. Looking forward to your next stop. Thanks for taking us along.

[@thetrillwillshow7978]

This was awesome!! So glad you got a shot of both engines running at the same time. I love these old engines! Love your work!

[@ChuckPackwood]

Good Job again Scott! I enjoy your adventures!

[@WilliamTMusil]

Thanks so much for this series. It brings back memories. I have not had my hands on a marine 671T since the late 80's when I was in the Navy. Seeing you go through it brings me back.

[@JoeTheLion60]

Kudos from New Zealand - love watching your work -- you are a magician :-)

[@Deftonesdsm]

Yup those bowl filters save many boat engines. A must have

[@buenaventuralife]

Fuel polishing system is on the "to be installed" list. @@jaquigreenlees

[@dickjohnson1158]

Way to go Scott , you are the man . Will be watching for sure.

[@kerrygleeson4409]

Another great job completed thanks for sharing 👍🇦🇺

[@marty0715yt]

Sweet I'll bet that sounds great mid throttle going up the river!!

[@johntripp2028]

Great job/ Thanks for helping that old boat.

[@Alilretard1]

So many points of failure on a boat that must be dealt with. At least we know the engines are good!

[@bbrut3332]

Have the owner replace the O ring seals on her fuel deck seals. Those little suckers crack and water running across the deck will get in the tanks. Post haste on the o rings. Might as well do the o rings on the water tanks while she is at it.

[@BusGreaseMonkey]

It was in pieces when we opened it.

[@williamstachour4019]

Man, that is just a sweet, sweet sound. Both at the engine and out back. Very interesting job!

[@TUMBLINJEST]

thanks again Scott.. Happy travels to your next adventure shared by us all..(i felt right at home when i heard them twin diesels running as most days or nights I hear the sound of big diesels of fishing boats or our huge offshore wind farm support boats going round doing service work out to sea).. Regards from coastal North Essex - UK

[@AlejandroRamirez-vl8mr]

Awesome, very atentive to detail. Loved this series.

[@53Peterbilt]

you sure know how to make these old girls run good! Nicely done!

[@TCB-1]

Those exhaust notes are beautiful!

[@journeymann1878]

Nice work. You are a true professional.

[@JohnDeere318Guy]

Excellent work! Detroits are some of the best sounding diesel marine engines IMO, especially with a wet style exhaust. The sound of two or more of them running in sync is absolutely amazing.

[@gbsgarage]

I sense the difficulty of this job. Good on you, for making it happen.

[@stevenholland9984]

Awesome job 👏👍 that thing sounds great 👍

[@maynardreed4036]

Those davco fuel filters are a great thing. I enjoyed watching all three videos. Very interesting.

[@raykirchdorfer5452]

good catch on the water in the filter

[@timheasley612]

Love the sound of those motors beautiful ❤️💚💚💚

[@kirkhathaway4974]

awesome videos!!!!!so glad i found your channel !!!!!

[@lilrip2691]

Well done Sir. Safe travels.

[@svoctopus4888]

Last month I had my fuel tank professionally cleaned on my sailboat. They pumped out all the fuel then pressure washed the inside of the tank, 40 gallons. My "Racor Filter" was full of water and so was my secondary fuel filter. Maybe next week I'll have a chance to clean fuel lines and HOPEFULLY there's no water in my injectors or pump! Oh I hope! $$$ Your boat owner NEEDS to change the impellers. Easy job if he can get at it. On my boat. The one in the picture above is a Ericson 41. The engine is flip around. Westerbeke 4 107. A cat would have trouble getting back there to change the impeller. Flush those fuel tanks. Once you get on the way, all that muck at the bottom of your tank will come up. FLUSH.

[@Alex-vb8kq]

Yeah who knows what kind of algae is growing in those tanks after sitting so long

[@svoctopus4888]

Yeah. Later after cleaning the tank they repolish the fuel which was still good and then adding some "Biocide".

[@cessnapilot8656]

They sure sound great. Thanks

[@DJinNJ08830]

Great Job 👍👍

[@mischef18]

Crikey lucky you spotted the water in the fuel filter bro, everything going well those engines should last a few more years yet. All the best

[@richardd408]

No short cuts, all pro. Well done

[@dcw1540]

Those engine really sound different in a boat. Thanks so much

[@DollarTreeFlyer]

Plz do more boats... love the sound of them

[@WifeBTR123]

I wonder how unique boats with Detroit Diesels are?

[@DollarTreeFlyer]

@@WifeBTR123 their actually quite common in older boats. I've looked a few with them. Hatteras and Bertrams have them

[@danhard8440]

wow catastrophe averted lol good save brother

[@cindytepper8878]

If you're going to do a lot of marine, gen sets, ect. you might want to look into fuel polishing, and keeping some biocide like Kathon .05fp on hand. We made our own fuel polishing system, but you can get complete units.

[@altacat9702]

Well done !!! Thanks for sharing !!! Crazy Fun !!! : )

[@ryanwhiddon4333]

I cut my teeth in the early 90s on a 671 I worked for one of the best Detroit Diesel engine mechanics in the world as far as l know his name was Gene Peters in Dothan Alabama and his brother Joe Peters was just as good i can't tell you how many times I had to dry fit selves in a 671 back in the day 12 v 71 8 v 92 and stuff it's a lost art glad to see someone still working on them

[@shoominati23]

I like the sound a a marine detroit, especially the Vs .. that is until your significant other complai'ns about "they make too much smoke and they're noisy" and you repower with Cats or Pentas

[@Alex-vb8kq]

Another great video. Im surprised you even took this job. Even with detroit diesels, marine engine repair is a whole different ball game. Marine engine repair rates are a lot higher too!

[@scottjones3966]

As long as those engines sat and as big as the fuel tanks usually are on something like that I could imagine there would be a fair amount of water from condensation in the tank. I'm surprised there wasn't any algae. It did sound good. Great video and thanks for taking us along..

[@buenaventuralife]

Each tank is 240 gallons. Fuel polishing is coming up soon.

[@Darkwell0071]

That’s why you always store them with a full tank. My sailboat has a mini diesel I winter it with a full tank never had a condensation problem.

[@96chevydually6.5L]

Great job !

[@Superduty_59]

love the boats for a change!

[@steves4639]

the twins really do sound awesome. that boat must haul balls when both are throttled up. hopefully the owner has someone in mind for regular maintenance to keep 'em happy.

[@teddill4893]

Love the intro and recap you have done with this series.

[@blackscotydog]

Sweet sounding screaming jimmys.....!!!!!!!

[@TommyboyGTP]

I hope you can get the chance to go back and go for a ride on the boat and film it for us :-)

[@amossnowdaharleyman9179]

In my Navy days we called that stripping the tanks. Amazing how much water can get into the fuel tanks on ships and boats.

[@CaptKirk1701]

Nice job!

[@mjarchambeau]

sweet sounding!

[@davidbrickey5925]

Man you’re so lucky to catch all that water in the filter and in the tank. That could spelled disaster. ☕️

[@gsengineering284]

Welcome to my world, greasy bilges and bad impellers. We have a boat of that make and size, different style, same engines in our marina. It launched the day Pt 1 posted. I don't know what the launching crew did, but she smoked bad for a short time. Seeing your project boat lurch when the engine started scared me, Scott. I hope they have their regular marine mechanic fix the neutral safety switches. Probably change the impellers, too, because they sat so long. even in a boat, Detroits don't like to get overly hot. The boss learned that the hard way.

[@josephbaker677]

I remember those High Rev Dump trucks back in the 70`s. Even the local buses were high Rev 6/71`s

[@blampa]

Very nice work, great catching that water in the fuel. Hopefully the owner has a fuel treatment specialist come and investigate the source of the water and clean the algae out of the tank.

[@raymondnoya5653]

Awesome ! I love boats

[@94FireGuy]

I think the drive for the starboard motor was in forward. When you fired the motor it lunged forward.

[@kimmer6]

After sitting for months the gearboxes on my Tollycraft will do the same thing. Once everything is warmed up the driveshafts don't move a bit while in neutral.

[@HankHill757]

They need to pull that boat from the water and go through it thoroughly to get it in shape.

[@BusGreaseMonkey]

They will, but she wants to move it to a marina closer to DC area where she lives. So sea worthy enough to make it to there then pull out of the water. That’s the plan

[@michaelwright1927]

Very nice very nice...... Sounds great ! To bad you couldn't have went for a cruise .

[@soillife1]

The fresh water intake pump should be driven off the engine and an easy change from the engine compartment. Good job.

[@scottyjones27]

Let them machine's run n warm up !!

[@kiddbrother3]

thank you for making videos longer! just need louder audio! keep up the great work!

[@gilbertfranklin1537]

I think I am going to records that sound from the exhaust and play it from the back of my Mitsubishi. Should get some stares.

[@PaulieB1965]

Been there done that. The impellers are most likely smoked. Not a big deal.

[@zackreuter6344]

Well that was cool. I was hoping you'd score a ride on the pirate ship though.

[@ShainAndrews]

Little surprised you don't have a remote starter switch. I don't like arching the threads, and it keeps me in a position to react to the engine.

[@haleyy68]

Another great video. Where to next?

[@axeblade3956]

Nice sounding pair of 671s. Hope the remaining needed work is done as expertly. Next..

[@buenaventuralife]

It takes time, A couple more years and she should be a nice boat. You can follow on Buena Ventura Life.

[@thereissomecoolstuff]

BGM, got one for you..if you take your oil absorbant pads and use them on diesel. You can wring them out into a funnel and jug and reuse them.. I had a diesel fuel leak and went through about 30 of them before I figured out how to reuse them.. don't know if it works for heavy oils or hydraulic fluid. I went from 30 pads down to 3 pads. You can use it on the buses too. Try it and put it on a video...safe travels.

[@jontisdall6248]

Really nice video Scott, lucky break spotting that water contamination. I don't know a lot about boats but love being on or near water, that tub looks as though it wants outta there already, looks to be straining at the leash. Where are you off to next ? Regards from the UK.

[@heartland96a]

Doing other machines running DD's , perhaps something different like a old cable excavator , crane or some other construction equipment might need your skills .It's all good.

[@michigandon]

Yes! I would love to see Scott breathe new life into, say, an old Insley or a Euclid.

[@jackbaker5284]

What you dont scuba ??? Easier than jacking things up...thanks for the vids...Jack

[@misterrick9734]

(BOAT) Bust Out Another Thousand $$$

[@chrisj197438]

Mister Rick Actually if you can do the work yourself owning a boat isn’t that bad. If you have to take it to a shop for everything you will go broke fast

[@CallMeAdam2023]

I enjoy your videos! Be safe out there traveling - from one Hoosier to Another

[@marksmith-ew7ir]

My uncle had a narrow boat and my dad put new small and big ends and ring's on a perkins engine still going after this was done ten years ago

[@yourselfdotcom]

Rookie move!

[@harriettedaisy2233]

You are worth every penny you get. Another less knowledgeable mechanic would have cost a ton of $$$ in damage.

[@BusGreaseMonkey]

$1600

[@KStewart-th4sk]

I agree he is very knowledgeable but any mechanic would know water is something you don't want in any diesel engine. If this was not a see through style filter canister, even he would not of noticed.

[@phantom629]

Maybe it's just me but the right engine looks like it's in gear, when you started it up she moved forward and took the slack out of the ropes the when you shut it off it settled back into its berth

[@Alex-vb8kq]

Definitely did, prop shouldn't turn at all if its neutral

[@eovdubsvw8743]

Little bit of governor adjustment and replace the Jabsco raw water impeller, your good to go.

[@matthewbirge1431]

May wanna check the fuel coolers. They are raw water cooled and if the fail it will fill the tanks with water.

[@lilrip2691]

Just did a fuel cooler /combo block delete on twin Cummins 6bta 5.9's. Really no need for them on a pleasure boat with aluminum fuel tanks. Also did CCV crankcase vent uprade. Rebuilt the p-pumps and new injectors turned up that 330hp Cummins up to 370hp. In a 99 Bayliner 4788.

[@matthewbirge1431]

@@lilrip2691 I completely agree on the fuel cooler delete. However those motors on that ocean are turned up pretty high. It may be a concern. On most Oceans the fuel tanks are in the engine room outside the motors by just inches. Tanks get pretty warm already. I dont think you'll boil the fuel on that motor yacht though unless they push it hard. A delete would probably work in this situation

[@gsengineering284]

@@matthewbirge1431 Detroiis discharge return fuel at block temperature, above the flash point, probably coolers are a Coast Guard regulation so you can't make flammable vapor like gasoline does.

[@grabasandwich]

@@gsengineering284 wow that's hard to imagine liquid diesel above its flash point. Sounds scary.

[@newjerseybill3521]

@@gsengineering284 More to the point, the fuel tanks are underneath the aft berths, since Detroit Diesels return one heck of a lot of fuel to the tanks that has gone through the 180 degreeish heads, without a return fuel cooler the aft area gets really really warm. .

[@Alex-vb8kq]

If anyone needs marine diesel engine repair in the VA, NC area, my friend runs Port Diesel out of Wilmington, NC. He specializes in Cummins but can repair anything. Google them for the #. Happy sailing!

[@tony66au]

Mud wasps in Dive suits..... Those buggers will get into the cooling intakes!

[@38911bytefree]

They run like sewing machines !!! That sound ...

[@captsam54]

The engines were in forward gear.. They were Not pumping water out of the exhaust.. When you see the boat jumping forward like that on the start .. that um was the propeller spinning, stirring up the mud from the bottom..

[@BusGreaseMonkey]

Well they shouldn’t have been, but i was in the hole and sure hope she didn’t click them into gear. But i goosed then a few times and it never lurched. But i was never outside to see anything.

[@enwri]

Would have been interesting had it run away, think the ropes would have held? Port one wasn't in gear the first start, but was for second with both running. 10:50

[@jkdwayne]

Yup , Starboard was in gear. Port wasn't. Could be water in Tranys , or clutches stuck together

[@buenaventuralife]

I will be going through the transmissions. The controls were in the same position which was supposed to be neutral. @@jkdwayne

[@MrBugsier5]

Welcome to my working world! lol Probably bad inpeller, That water in the tanks is most caused by leaking fillercaps in the deck, new o rings and a bit of grease will fix that. In case the ownwer used it to fill his watertank, its plaine stupidity.. lol Seen it fixed it! lol

[@NebukedNezzer]

back in the 50s. mols/st.paul minnesota buss service was twin city rapid transit.(called rancid transit). the old gm busses were so shot. one neighbor worked there as a mechanic. he said we don't shut them off unless we have to cause to get the worn out engines to start was no fun and a lot of either. eventually tax payers took over and with no end of money the busses were replaced with new ones and actually maintained. so I am sure when you get to some of the old busses they are just worn out.

[@claywalker9064]

Scott these Detroit Diesels are amazing pieces of kit! being a hobby mechanic myself and just listening to them at idle they sound so smooth and silky. Your mechanical skills and knowledge are truly inspiring. I always look forward to next video and having been covered in grease and oil myself on numerous occasions, how does your wife get your clothes clean between jobs - with all of the travelling you do? Kind regards .Clay.

[@stanpatterson5033]

I'd hope they go to a Laundromat or cleaners. Not to insinuate anything, but I once had a co-worker who would stop at a truck stop and do laundry rather than just take it home and do it (for almost free) in his own machines. I asked him about it, he said he didn't take laundry home for his wife to do. I didn't push the issue, but I often wondered what he did with the clothes he wore on his off days when he wasn't working. I know they had a good washer and dryer, because I helped pick them up at Sears, helped pull the old ones out of their laundry room, and help lug the new ones in there, as well as other visits to their place to help them with projects. I've also known guys who would buy a second set of washer/dryer that would be dedicated strictly to shop clothes, to avoid getting oil and grease in the "good" laundry machines.

[@claywalker9064]

Hi Stan - Many thanks for that - I live in the UK and as far as I am aware our service areas do not have the Laundromat and if they do they are certainly few and far between and also would be damned expensive also you are only allowed to park at the service areas for 2 hours before they fine you (talk about being ripped off) - we have cleaners in our towns but parking Scott's bus would be a complete nightmare. Clay.

[@siemenstraffic]

Good thing that you check the fuel filters before restating the engines.. Dealing with a hydrolocked engine is not a fun thing to deal whit.....

[@rolandtamaccio3285]

,,, hydrolock will almost never come from the fuel, usually: intake, head gasket, head, injector cups, possibly back through wet exhaust manifolds, but water can sure foul up the injectors, but many times will just shut down, because it won't go through the fuel filter. Worst scenario for the injectors, if it gets in them, freezing and cracking them, but very rare .

[@waynep343]

Warning the Starboard engine is IN GEAR.. the PROP is spinning trying to pull the cleats off the dock or snap the lines.. you might want to let them know.. that is a much newer set up than what was in the boat i was on.. heck.. cable operated air doors. hopefully they can find a marine mechanic to help them wth the cooling system and seeing why the Starboard prop is spinning.. did the marine drive get damaged when the engine ran away.. something is way wrong. but the engines do sound good.. the starboard one sounds labored.. but that is probably because its in GEAR. best of luck to those new boat owners.

[@misterexponential]

wayne p runaway diesel in gear...what a show!

[@waynep343]

@@misterexponential I was frightened when a saw the prop wash hoping he did not Rev the engine hard. Worst is usually nobody at the helm. Shore power gone as the end rips out so out of control in pitch blackness. Everything you hit costs over half a mil or more. The engines not going to stop till it blows, injests water or runs out of fuel.

[@buenaventuralife]

Before the engines run again I will have the throttle and transmission cables replaced. Stretched, tight and old, time for fresh, young and smooth.

[@waynep343]

@@buenaventuralife do me one favor. make sure the transmission is actually in neutral and that the prop does not spin when the engine is run. if that is the engine that ran away .. the transmission could have been damaged. frictions overheated or delaminated. i had sticking shift shafts on a very very old twin disc transmission . the shafts thru the sides of the case were rusted in place. yours should be a far different set up. the set up i was working with had a double clutch move the lever one direction and the first clutch engages. spinning the prop same as the engine.. move the lever the other direction the second clutch engages and the prop spins in the other direction.. yes.. the free running disc is spinning backwards in the clutch ... but it worked. neutral was both clutches disengaged. if you have a twin disc.. you could have rust on one clutch keeping it engaged.

[@buenaventuralife]

I need to ensure the transmissions cables are correctly aligned. There is no way that prop should have turned. The port prop does not appear to have turned and it is in the same position on the telex, as the stbd.@@waynep343

[@pappypinel7484]

Nice job Scott, thank you for sharing you should go live every so often and do super chats ...