Tearing Into My 14L Diesel Boat Engine To Find The Damage

8.10.2020
456 867 Näkymät

In today's episode we're tearing into my Cummins VT903M 14L diesel boat engine to see how bad the damage is and if we can fix it.
Huge thanks to Texas Speed for partnering with us on this one, check them out at www.texas-speed.com/
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Music:
Fareoh - Cloud Ten

Kommentteja
  • Those pieces of rubber at the 8 minute mark is the impeller fins from the raw water pump. Most likely either from a previous failure and was replaced by an armature.

    Adam LewandoskiAdam Lewandoski28 minuuttia sitten
  • Chev it....LOL. Just order a dumpster now and get it over with. Make sure to put a fire suppression system in now because your insurance company will make you put it in later.

    Bad SantaBad Santa16 tuntia sitten
  • you should have checked the filters before starting the first long trip

    charles lindsaycharles lindsay16 tuntia sitten
  • VT903 is the same engine used in the M2 and M3 fighting vehicles and their variants. Good stuff there.

    extrameatsammichextrameatsammich16 tuntia sitten
  • One question you couldn't get a tow from the slip to the hoist

    Ann TrautweinAnn Trautwein19 tuntia sitten
  • I also disagree about going gas. Big mistake. Second mistake is going with a company that does not specialize in marine engines. Although I have a 454 (7.4L Merc) in my boat it does not use the same parts as a car 454 at all.

    Jean CoutureJean Couture20 tuntia sitten
  • I hope you have $100,000 lying around. That's what it's going to cost to get these things properly rebuilt. Trying to do this in the backyard with people that have zero experience isn't going to cut it. That impeller was never changed because there was no room to get to the front of the motor.

    Rainer GimenezRainer GimenezPäivä sitten
  • I DONT AGREE...WITH NOT REPAIRING THE ENGINES..Why on eartth with you guys and the equipment you have and the money you all make, DO NOT HAVE THE CAPABILITY TO DO THIS, when a 3rd world country like the PHILIPPINES can literally do that repair on the side of the highway without breaking a sweat, with welded pipes as an engine puller and a large come along and have them drop the crank right there.....[IVE SEEN THIS DONE WITH MY OWN EYES BECAUSE THE COMPANY THAT OWNED THE TRUCK WANTED IT REPAIRED ON THE SPOT BECAUSE IT WAS MORE FEASIBLE THAN TOWING IT ....it was in a remote region], Personally i could repair this engine by myself in my own house and i dont have A MILLION SUBSCRIBERS...smh.......people here pull V10 ENGINES ALL DAY LONG [much bigger and heavier than these] with come along hoists and manual labor and the peeps here weigh 129 pounds [thats filipino men] and they manage to repair that said engine within weeks.....getting the parts from China..[IM JUST BESIDE MYSELF HOW U GUYS QUIT BECAUSE ITS NOT YOU TUBE FRIENDLY.] Then why work on boats if your not equipped or prepared for it.......smh...DONT GET OFFENDED im not busting your balls but im just shocked how you all think doing this work is harder than doing a RESTOMODDED MUSTANG....i dont see a difference....

    Boop Boop GlobetrottersBoop Boop GlobetrottersPäivä sitten
  • Rubber in your cooling system is disintegrated impeller... get used to it... you must change these every year and pull the heat exchanger if you find any impeller blades. You are a babe in the woods, get a good Cummins mechanic to advise you. You have insufficient knowledge to make a good decision!

    Jean-Pierre GermainJean-Pierre GermainPäivä sitten
  • A car guy who thinks diesels can be replaced easily in a boat... NOT. Rebuild these ...

    Jean-Pierre GermainJean-Pierre GermainPäivä sitten
  • GET A CUMMINS REPAIR MANUAL.

    Gene MartinGene MartinPäivä sitten
  • Drop both engines at a Cummins shop. Two weeks later pickup your warrantied engines. Now you have several years of trouble free cruising.

    Loren ForslundLoren ForslundPäivä sitten
  • boats going to be a fucking TURD with a gasser in it.

    Diesel RamchargerDiesel RamchargerPäivä sitten
  • B is for Broken......

    Diesel RamchargerDiesel RamchargerPäivä sitten
  • Two gasoline engines will kill you in a explosion. This makes only sense if you are a Drumph voter. In that case go ahead.

    Juan FangioJuan Fangio2 päivää sitten
  • As user 28cruzin had greatly detailed in his comment and is 100% correct! It's a boat "Break Out Another Thousand" and any work done on it will always be expensive. When you bought the boat did you have it surveyed & did a marine mechanic check the engines? Me just looking at that engine I can see red flags. Green corrosion on the water pump & other areas. Flaking rust in areas where you don't want it. The amount of oil that you had loss, I doubt it came from where the water pump gear assembly. Seeing the color of your oil on the oil filter my guess you may have an issue with your oil cooler & I'd suspect you having issues with the aftercooler "heat exchanger" with all the fragments of rubber from the impeller are a tell sign it hasn't been serviced. I'm sure the anode is completely gone too. People in the boating industry do swaps from gas to diesel for a reason & not the other way around, for torque & fuel economy. So get ready to replace the whole fuel system including the fuel tank, transmissions, shafts, stuffing boxes, cutlass bearing, props, & gauges. Plus with gas you must install at least 2 bilge blowers. That's a heavy boat for gas engines, you better install a large fuel tank you're going to need it. Regarding the value of the boat, it will be gone. She is worth more with 2 used diesels engines than 2 brand new gas engines. Just the word diesel on a boat gains massive interest. Here in New England, any vessel that is 28' or more and has gas engines, you can't give it away. The only exception would be speed boats, then again they don't weight that much & built for speed. You're going to be on drydock for a while. Looking forward, on seeing the challenges.

    ComputerJohnComputerJohn2 päivää sitten
  • 🤦‍♂️

    stimproidstimproid2 päivää sitten
  • Wrong move DUDE.

    Steve RoseSteve Rose2 päivää sitten
  • JH diesel is disappoint.

    Arden KroesbergenArden Kroesbergen2 päivää sitten
  • Speaking of blowers, don’t forget to put a couple of them on the engines!

    NevertrustalawyerNevertrustalawyer2 päivää sitten
  • I was going to comment but now I am just leaving your channel

    James WhitingJames Whiting2 päivää sitten
  • I wish you well. This is a very big project for non professionals.

    RON OBRIENRON OBRIEN2 päivää sitten
  • Pull the valve train before unbolting the heads.

    RON OBRIENRON OBRIEN2 päivää sitten
  • If you had a lot of exhaust smoke and gross oil loss, it was probably a turbo seal that caused the oil loss.

    RON OBRIENRON OBRIEN2 päivää sitten
  • It doesn't pay to rebuild them there's no technology a set of new used diesels whichever way you go brand wize , cat, Cummings, Volvo, Perkins, will be more efficient fuel wise and power-wise and the boat will run 10 times better are you most definitely grab some more speed do your research

    Gregory KrawchukGregory Krawchuk2 päivää sitten
  • The "fins" are vanes.

    RON OBRIENRON OBRIEN2 päivää sitten
  • This is painful. Those rubber "shards" are clearly the raw water impellor.

    RON OBRIENRON OBRIEN2 päivää sitten
  • When you have oil & coolant cross contamination, the first thing you check is the oil cooler.

    RON OBRIENRON OBRIEN2 päivää sitten
  • I agree with the decisions to go gas in this case. After this owner this boat will be scrapped its just too old, upgrade everything you can and enjoy it for a few years

    Giggidygiggidy12Giggidygiggidy122 päivää sitten
  • oil on the dipstick says head gasket

    Dencil DeanDencil Dean2 päivää sitten
  • can tell you have no marine experience, those rubber chunks are from your raw water pomp

    K DelK Del2 päivää sitten
  • I just saw a brand new cummins 903 marine for 15,000.00. 400 hp

    John TrippJohn Tripp2 päivää sitten
  • I hear a lot of excuses. Gasket sets are available. Diesel engines are expensive. Very expensive. But you get to do whatever you want to do. It's no going to exceed it original design speed. This is going to be fun to watch.

    John TrippJohn Tripp2 päivää sitten
  • I like that fact you are going with your strengths and the 468's are a good starting point, but you are DEFINITELY going to have to turbocharge (NOT SUPERCHARGE) them! You're going to need 800-1000 lb-ft at less than 4700 rpms if you want them to live and last with the marine duty cycle percentage of time over 75-85% load. Stupid-fast cars with 1000+ HP spend mere seconds at 80-100% load and 90% of their time at less than 15% load. Airplane engines are much the same way as marine engines. My "built" Continental IO-550 made 370HP and 720 lb-ft of torque at just 2800 rpms, but it spent 75% of its time over 2300 rpms. 10 lbs of twin-turbo boost should get you around 950 lb-ft and 825 HP per engine at 4700 rpms. I'm thinking a nice easy 3500 rpm cruise would get you something like 450 HP and 700 lb-ft or torque with 4000 lbs less weight to lug around. Sounds pretty doable to me. Best of luck.

    Bill WalkerBill Walker2 päivää sitten
  • Look at used gas trucks vs used diesel trucks. You’re wrecking your boat. But it’s yours, so I’ll watch. 😂

    Benjamin BekselBenjamin Beksel2 päivää sitten
  • Go hybrid. Engine to charge battery's for a hi torque electric motor.

    Sam CrawfordSam Crawford3 päivää sitten
  • whadya think, about 2000lbs x2 compared with the LS engines? and half the torque? There seems to be a ton (pun intended) of surplus military zero-time engines out there under 10k bucks. Parts dunt seem to be rare and hard to find. Hell, I think you just wanto put a car motor in a boat. I know...your boat. But we're along for the ride, it just got a little less fun. Put some t=0 rebuilds back in there with fatter props and see what she'll do.

    Rodney JensenRodney Jensen3 päivää sitten
  • In the class 8 world we usually send oil samples out for analysis, costs $35.00

    michael dixonmichael dixon3 päivää sitten
  • 903s are junk

    Terry FloydTerry Floyd3 päivää sitten
  • the reason ls motors have a steam piping is because they were designed by ppl like you. lol. good god. Its cool to not know but damn...basic knowledge of how diesels work would have benefitted you before u made this vid. So let me educate you a lil....what you have for a failure on the piston is called cykinder wash down! ur injectors failed and washed her down...burned all ur oil. coolant in the oil just lookin at your heat exchanger, might check your engine oil cooler....oh and twin ls engines sound dumb...hope texas speed can make a counter rotating ls to reduce torque steer.

    Nathan MollohanNathan Mollohan3 päivää sitten
  • You should have plenty of room for more fuel tanks cause your gonna need them.

    Gerald FieldsGerald Fields3 päivää sitten
  • Hence why they sold it. Possibly promptly as we found with our purchase later on. Allways ask many questions, you may get a tad of truth ! Good luck

    Phil WPhil W3 päivää sitten
  • wait a month and put the right motor back in

    Dalton HillDalton Hill3 päivää sitten
  • So what is the name of the saudi oil king you sleep with ?

    HissmannenHissmannen3 päivää sitten
  • Blew a rod! Cracked head, blown gasket! Not happy in engine compartment.

    Russell E SimonettaRussell E Simonetta4 päivää sitten
  • 2 happiest days for a boat owner...they day they buy it and the day they sell it. Now you see why...lol. I understand the decision to go gas, but honestly....these monsters have diesels for a reason. You use the resources you have though, clearly can put two gas engines in there way cheaper...it is what it is. Shouldn't bought this hunk of sh*t to start with ...lol.

    KnightDriveTVKnightDriveTV4 päivää sitten
  • These guys are out of their depth first send the engine to a Cummins ship get a cost for rebuild and get costing for replacement engines if you are going to do a good job the replacement engines need to be the Sam hp the boat was built to run with that hp go cheap go down

    NorfolkcNorfolkc4 päivää sitten
  • rubber is water impeller

    WouldaCouldaShouldaWouldaCouldaShoulda4 päivää sitten
  • Grab a couple Caterpillars that will get the jop done and at lower the cost of Texas speed.

    John KoppelJohn Koppel4 päivää sitten
  • Fuckin right

    John KoppelJohn Koppel4 päivää sitten
  • This will save you tons of money in converting from fuel to diesel

    Gregory KrawchukGregory Krawchuk4 päivää sitten
  • My recommendation go online find somebody that's doing a repower, and try to find something in diesel with low hours preferably inline 6 they create monster torque

    Gregory KrawchukGregory Krawchuk4 päivää sitten
    • There you go , look at all the years of experience to tell you not to go with gas engines , you got to go with Cummings or Volvo's or maybe a nice set of yanmars but you got to go diesel

      Gregory KrawchukGregory Krawchuk2 päivää sitten
  • Gas engines , not going to happen my friend. well good luck with that

    Gregory KrawchukGregory Krawchuk4 päivää sitten
  • Cut your losses , sell the engines for scrap and pay the landfill fees for the fibreglass hull. 30 years is end of life.

    Durham ResidentDurham Resident4 päivää sitten
  • I would donate those two engines to a diesel School

    Gregory KrawchukGregory Krawchuk4 päivää sitten
  • I would go with big Cummins 6 cylinders 425 HP

    Gregory KrawchukGregory Krawchuk4 päivää sitten
  • Repower the boat with New engines they are more efficient

    Gregory KrawchukGregory Krawchuk4 päivää sitten
  • So water pump failure then, hone or resleeve the block fit new rings re-build. not mega bucks. very serviceable engine 2 million miles in a truck all day long.

    Ed WilkoEd Wilko4 päivää sitten
  • Yeah nahhhh

    Flippin Mad PinballFlippin Mad Pinball4 päivää sitten
  • Great content and great job!

    Ben BurraBen Burra4 päivää sitten
  • 🤣🤣🤣🤣 I just can't stop smiling and honestly laughing at all these comments ... way over 4000 ... the greater part is negative, almost trash talking Chris and his decision ... guys ... its his channel, his project, his time, his money and his decision which way he wants to go, so chill and enjoy the content and his journey, any way it goes ... thats why we all are here anyways ... right? 😉 ... youtube = entertainment = bis4build 😅 Keep it comming(s) Chris 🙈🤣🤣🤣🤣

    Kim Enemark - DKKim Enemark - DK5 päivää sitten
  • Oh lord!!

    CaptRon817CaptRon8175 päivää sitten
  • Next episode wide body kit goes on the 30 year old yacht

    eioshen boboieioshen boboi5 päivää sitten
  • I'd do gas also but I'd go 632 big blocks, carbed. Carbs are safe for boats with marine carbs /arrestors and all stainless lines. Fire hazard with carbs comes from non marine starters, alternators, ignitions that dont have proper spark sheilding. More marine parts available also for big blocks than LS platform. Good luck

    bear cranebear crane5 päivää sitten
  • Oscar the grouch is your new bitch huh? Lol... jk

    Chris FChris F5 päivää sitten
  • A couple of points for the new engines. You will need to select a gear ratio that matches the prop shaft RPM with the old engines at max RPM to the new engines max RPM, or you will need new or repitched props. You also need water jacketed exhaust manifolds. Finally, most boats are designed so the exterior deck slopes aft so water will run out through transom drains. You will be saving so much weight,aft, with the gas engines, that the trim may actually have the decks sloped forward, which will flood the boat if it rains. You could check this by simulating the new engine weights, and floating the boat to see what the trim is. I agree with your comments about the poor maintenance access on the old engines. It's a common problem on yachts.

    Tamara LeeTamara Lee5 päivää sitten
    • SMH

      eioshen boboieioshen boboi5 päivää sitten
  • B.O.A.T. BUST OUT ANOTHER THOUSAND!

    sangerstud06sangerstud065 päivää sitten
  • What about Tesla powered, however, with a fuel efficient motor (generator) to supply power instead of large battery packs? Massive torque and still a good energy density with diesel

    knulenknulen5 päivää sitten
  • this is such a toxic comment section, let this man do what he wants to do. if you have such a problem with it go build your own marine diesel engines jesus christ.

    vikings1993! _lolvikings1993! _lol6 päivää sitten
  • I sub’d to watch this shit show of a boat refit

    Tony AlexanderTony Alexander6 päivää sitten
  • Don't forget you have to have it surfaced and fire rings put it before you put it new sleeves.

    aaron woodaaron wood6 päivää sitten
  • Awesome thing about diesel. Sleeves. You can start brand new

    aaron woodaaron wood6 päivää sitten
  • Sea pump is trash

    aaron woodaaron wood6 päivää sitten
  • You need to rebuild it anyway. Move on

    aaron woodaaron wood6 päivää sitten
  • You will need to rebuild the 468's after about 1500 hours of runtime. The Diesels can go 5000-8000 hours of runtime before a rebuild if well maintained. The problems with the Cummins 903 was not the engines fault. It was poor maintenance. Your also killing the resale value of the boat.

    Michael PerryMichael Perry6 päivää sitten
  • No shortcuts with these engines,

    Paul WoodsPaul Woods6 päivää sitten
  • Liner is probably cracked boys!

    Chad CaldwellChad Caldwell6 päivää sitten
  • Don’t do 454🤨 I work for Cummins and you are making a mistake!

    Chad CaldwellChad Caldwell6 päivää sitten
  • you can't make the boat go faster than what the haul is designed to go. The haul design is the governing factor of how much speed you get out of it, I'm not an engineer but I know the liquid mechanics plays an important role in speed over the water.

    Dan MoroDan Moro6 päivää sitten
  • Why not try the LS? It will be aweome or it won't. Good luck and I cant wait to see it come together!

    CuracaoGolferCuracaoGolfer6 päivää sitten
  • SMH

    Dynamic Mobile Detailing & AudioDynamic Mobile Detailing & Audio6 päivää sitten
  • 3 ls engines will be awesome

    Charlie McLaughlinCharlie McLaughlin6 päivää sitten
  • Bad sleeve orings that's all

    Charlie McLaughlinCharlie McLaughlin6 päivää sitten
  • DAVE, GO WITH DIESEL!!!!

    Monte GonzalesMonte Gonzales6 päivää sitten
  • Keep the diesel motors totally fixable !

    steven edginsteven edgin6 päivää sitten
  • Oil is coming from blow bye because of the bad piston rings and you can re-sleeve that motor there’s also an oil seal on the water pump that goes to the motor which probably was leaking you can rebuild that hope this helps you guys out The motor should have a hose on the side to ventilate the crank case that’s where the oil came out and went into the bilge

    steven edginsteven edgin6 päivää sitten
  • Water pump impeller fell apart

    jonsm114jonsm1147 päivää sitten
  • This will be fun to watch.

    John FairleighJohn Fairleigh7 päivää sitten
  • I am pretty sure the fuel tank has to get recoated to work with the gas conversion....but don't quote me on that

    TTGTTG7 päivää sitten
  • That sleeve was moving too when you pushed on that piston the sleeve is f'd

    bgslade1bgslade17 päivää sitten
  • These guys are a joke. Let’s put in a gas engine because we don’t know what we’re doing. That engine overheated badly. It was obviously caused by the previously failed sea water pump impeller, clogging the heat exchanger. Sloppy maintenance. There’s a reason Diesel engines cost a lot of money. They make horsepower for many many hours. A little gas engine will be junk in only a few hours trying to push a big boat.

    Bill MoranBill Moran7 päivää sitten
  • How did someone with so little mechanical aptitude develop such a huge following in this space? The mind boggles.

    Ryan SmithRyan Smith7 päivää sitten
  • A wet liner diesel engine is fundamentally designed to be super easy to rebuild and incredibly reliable. From everything you've shown the diesels need a basic rebuild where complete kits are commonly available. Instead you're going to swap in some small gas power plants? You've got to be kidding. That boat will be a dog and never as reliable. It's a yacht, not a speed boat...

    Ryan SmithRyan Smith7 päivää sitten
  • Buy a new motor will be cheaper mate

    Albie RossouwAlbie Rossouw7 päivää sitten
  • if you know what you doings.

    yasio boloyasio bolo7 päivää sitten
  • I was just curious what 14 liter engine it was. I wasn't paying attention till you said LS swap... Then it got interesting. :) I'll just say this - T is for Turbo... :D

    David MiddletonDavid Middleton7 päivää sitten
  • You will never get your money out of a boat, or should i say you tubes money !!

    john smithjohn smith7 päivää sitten
  • Rubber parts looks like pieces of impeller... oh I see now they are.

    Stefan SStefan S7 päivää sitten
    • GUBER A 903 IS NOT A 14L. ENGINE

      yasio boloyasio bolo7 päivää sitten
  • Lol, you said "investment" talking about your boat.

    Corey MoyersCorey Moyers7 päivää sitten
  • how much did you loose?

    Rob MotuzasRob Motuzas7 päivää sitten
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