Komatsu D65e-7 fuel float tank

Setting the injectors to 48 inch pounds and cleaning the float tank.

[@garrettfoote8570]

Few years ago I went rounds with steering clutches in a little komatsu dozer. Some things they did on those machines are definitely interesting

[@hzgts308]

G’day Warren. I’ve had a few dramas with the float tank on our D85a. I actually had fuel pouring out of the breather for the float tank, just below the floor panel. I ended up disassembling the tank, cleaning the float valve and tank completely and reassembling. Well it fixed it for a while. Turns out debris in the fuel tank was holding the float open. I repeated the cleaning process and then installed a pre filter with water trap at the back of the main tank. Never had a problem since.

[@richardlincoln8438]

Sometimes the Good Ol' Days weren't all that good.... just old. Thanks again Warren. Best Wishes to You and Your Family .

[@Thedudeabides803]

Give me the good old days over today any day.

[@richardlincoln8438]

@@Thedudeabides803 I think that you missed my point.

[@KStewart-th4sk]

@@richardlincoln8438 Well i guess that depends on how far you go back. In the days of distributor points you had a damn good chance of getting your vehicle going again on the side of the road. Today you are out of luck. Modules for multiple functions on these autos that are unobtainable. Try that in the middle of nowhere and no help for miles around. Not many even want to stop and help anymore for safety reasons and i don't blame them. Cell phone coverage isn't everywhere either. Horses were pretty reliable. LOL

[@richardlincoln8438]

@@KStewart-th4sk I was mostly referring to that crawler Warren was working on.. The first word iny statement doesn't seem to be considered either but if it made you feel better that's nice.

[@edsnyder4073]

This machine is from the 1980s looks to be in nice shape. Those float tanks will get you every time. Retired after 31 years working for a komatsu dealer.

[@martinharper5112]

Thank You Warren. That sounds sweet. Dad was a mechanical man. He said 'every day is a learning day.' We all learn something new with your excellent vids. 👌

[@svthorasailing4868]

Thanks for explaining the tank situation chief,there was quite a few helpful comments from previous video shout out to those guys.

[@billdornan4379]

Good morning,Warren. Kindest regards,Bill 🇨🇦🇨🇦

[@calumanderson5617]

Thank you for the video Warren, it's been a lonnnng day, always great watching your video's after a shitty day, thank you Warren.👍

[@thomaspetroff9117]

You got the ole girl going your way! Sounds Great. The old 220 was tough as nails, and millions in service back in the day. Also smoked like freight train under load. Fuel system sounds extreme, but understand the need as you explained with the PT pump. Well Done man. TGP

[@richardhoneywell7411]

Great video Warren glad to see you're getting it all sorted out. Idles pretty smooth runs great too. Thanks for sharing stay safe Warren. Congratulations on your Daughter graduating college.

[@samuelwilhoit2123]

We had one of these dozers and had problems where the float would stick and came back and all our fuel was on the ground in the morning. Bypassed the tank and took it to auction and bought a d6d. Love the cat much more

[@butchphillips873]

G'day again Warren, I did comment in the last vidio about the little "side" tank. The float valve is basically a carby float and needle seat. You should be able to remove it through a round hole/plate on the top of the tank with 6 small studs. Theres a gauze mesh filter at the bottom. I can't remember if it's for the supply inlet or outlet to injector pump. Like I said in the last vidio comments it's been over 40 years. I also belive this was a Cummins part as it was fitted with these 743 type diesels in other applications. cheers, Butch.

[@twistin140]

Thanks Warren for the follow up. and Congrats to your Daughter again!

[@TsunauticusIV]

I don’t even have to finish the video. I bet you get this ole girl sorted out.

[@TsunauticusIV]

I finally got to finish the video. Yep. Of course you got her.

[@doglaslondon7904]

Hey mate thanks for getting back to me I did same and cleaned out tank I was in logging game it would get a lot of movement and the shit wold block float your one sounds great they are a very good tractor good work

[@douglasmayherjr.5733]

Hopefully it plays nice and the owners happy. Thanks for the video, Warren.

[@ElvicFarms]

Hey Warren have had a lot going on so far this summer sorry I haven’t been able to watch or comment but I still appreciate you!

[@Lucky4wd4840]

Warren my old D65-E with the Cummins had a compression release that I would use at startup. Maybe that hid the problem it had with fuel leaking into the cylinders!

[@AnthonySmith-hr2kp]

Nice job Warren, love all your videos

[@trevormansfield6495]

My day hasn’t got any better………

[@terryrogers1025]

Thanks for the follow up, I actually learned something. Appreciate the video, enjoyed watching.

[@malcolmyarnold6172]

Good job mate love watching you work you have gave me a few handy tips thanks keep up the good work

[@michaelmcdonald6727]

Hey Warren, that’s the way to get things going Great video, thanks much!

[@davidhudson5452]

You got it ready for its job well done

[@sumpjunkie]

The Cummins PT fuel system requires a float tank in certain applications where the fuel tank is providing a head of fuel. I have never seen them on application where the fuel tank is only just above the crank centre line as engines would often have check valves installed. Typically on marine engines with check valves fitted you do not need a float tank unless you are more than about 1.5 meters above crank centre line as the head of fuel on the return line puts the return restriction above its maximum limit. I am guessing this engine does not have check valves and therefore anything over the height of the injectors could flood the engine with fuel as atleast one injector is open at all times. The return fuel if not protected by check valves can also let fuel back into the engine if the return level is higher than the injectors. Cummins had 2 different size float tanks that where / are available. The one on this machine does not look like a Cummins part. The float tanks often have a breather on top as well. My advice is to run this breather higher than the supply tank incase you have a faulty float. i have seen them crack, fill with fuel and sink, letting fuel flow through and out the breather, I have seen a trawler put about 5000 litres into a bilge - not nice. If you have a PT engine take a while to shut down you may have a restricted return line.

[@KStewart-th4sk]

Thanks, thorough explanation. Hopefully Warren sees it.

[@speedandmarine9066]

I've got an old JS6 with t he same pump and flange injectors and it coasts to a stop (basically burning what fuel is left in the injector after the pump is put in no fuel) and has a little fuel knock when it starts. I'd say that 220 is fine, time for the dozer to go push fire roads in.

[@user-kw6zf1cq9f]

Thanks for the excellent video, and sharing the knowledge!

[@richwielechowski5191]

Woven wire on the front would make you cross eyed by the end of the day. Runs like new!

[@KStewart-th4sk]

Railroad had brush cutters that had all the glass covered in mesh. One of them fired a rock through a car window going by hundreds of feet away, hitting a girl in the head. Never heard any more about it just that it was word of mouth on the shop floor one day and that it had happened in another Province (Canada). This was back in the 80's/90's. It had hydraulic motors that drove flywheels with cutters at high speed. Forget the RPM.

[@davekelley8520]

We put atf with the fuel and inside our stuck injection pump and shocking as it was it loosened up and is running far better than it was 4 years later

[@popswrench2]

belly plates pans sidepanels and hood , welkome to my former working world 😊 hard but when you see those things push right , warms your heart as much as sweating body 😂😂

[@michaelosullivan1892]

Super machine ☘️❤from ÉiRE

[@jasonmorris2813]

Good work as usual I tell you what, I really like that komatsu/cummins

[@KG-yn9qi]

Thank you! Well done you can do it!

[@fastst1]

putting a toilet tank in a fuel system, interesting

[@keithwallington4966]

I now youd find it sounds good to go 👍

[@fredwiese9978]

Warren i had to figure out that cummins float tank too. Mine has a little screen on the inlet that plug pretty easily fyi.

[@dimitrirens5490]

Weer knap gedaan 👌

[@garygotthardt8577]

Loud & Proud

[@patwheeler9291]

If the float valve isn’t shutting off it will flood from the breather as it is below the injectors.

[@gregbird6615]

Don’t let Gavin Newsome see that thing smoking. Lol

[@tomv7552]

I wonder if it’s been parked up for a while. With what the customer is describing, if the valve stem seals are on the way out, oil will leak down into the intake/exhaust and they smoke like crazy for a while till oil the oil is burnt off. And with the exhaust leaks the smoke will make it look like the engine is on fire.

[@oldbones3092]

Thank you.

[@briangarland9883]

Yup, I had one of these where the float went bad and it drained a bunch of fuel out on the floor. It was quite a mess..

[@rustynail4676]

Sound like it would be easier to just install a 12v nc solenoid in the system so it can't run fuel with the ignition off.

[@badmonkey3669]

That thing is so weird the way it shuts down

[@farwest571]

Smokes less than the one we have...I wouldn't worry about it we've been running it for years

[@RodC327]

Not sure about the injectors in that model, but the L10 injectors will cause shut down problems if the check ball is stuck. You may have got a bad reman injector.

[@robertdonaldson6584]

UPS uses 4 cylinder Cummins engines in their delivery trucks.

[@CrimeVid]

She'll do !

[@Darryl603]

Seems like it don't want to shut off.

[@bigunone]

I was thinking while you were wondering if it was cast iron or aluminum, your trouble light has a magnetic base and is sticking to the metal, so it must be iron!

[@billyhorton5779]

Komatsu = Imitation Caterpillar but a cheaper price. The reverse engineering of an authentic Cat dozer must have saved Komatsu a fortune in designing their own. "Imitation is the sincerest form of flattery"

[@Skidderoperator]

Greedy theiving asians stole the design

[@geesss8675]

Did you have a point? Or are you showing that you suffer from the effects of late term abortion? Look out here comes another coat hanger

[@KStewart-th4sk]

There were others making bulldozers as well, besides Caterpillar. Allis-Chalmers, International, John Deere, etc. I have read that the company that became Allis-Chalmers were in the dozer business before Caterpillar. LaPlante-Choate Mfg. Company of Cedar Rapids, Iowa

[@Skidderoperator]

@@KStewart-th4sk JD and CAT steal from each other.

[@merlepatterson]

That smoke could also be valve guides (seals) worn in on an old engine?

[@willcojak9650]

👍

[@KStewart-th4sk]

Were/are there no electric operated fuel supply solenoids that could be put inline right at that PT Pump instead of this float system in a smaller tank?

[@roadsideservice2406]

Sure sounds good to me.

[@TimberTramp]

The military must paint that hideous green directly on top of the komatsu yellow?

[@user-mh8le5gj7i]

I'd put in a solenoid or ball valve & toss the float tank in the garbage. Thanks Warren !!!

[@KStewart-th4sk]

If yours, sure, i can guarantee you the vast majority of hired operators will not close a ball valve. A solenoid operated one is the only option for them.

[@user-mh8le5gj7i]

@@KStewart-th4sk lol, agreed...

[@JD-zm4eh]

Sounds good like it's ready for more work. No computer to foul up engine, hurrah.

[@freeradical6390]

Wonder if hed trade the Komatsu for a 57 JD 420c thats mint ready to rock? :)

[@weiggie66]

Is there any blow by on the engine?

[@jonyknoxvil]

Hi Warren. I just want to say my name is Jeremy not Jonnyknoxille as KZbin calls me

[@joseaugustoflauzino3864]

Bom dia...Brasil..Rio de Janeiro

[@randyleonard4126]

So close to being first comment..😂😂 Oh well,guess it's back to pulling a rad out of a Dresser TD20e, for me..😁

[@richardlindgren529]

Warren wins again

[@wimtheeuwen7315]

I come and help to make some order and space in your shop and work for free a few days just to see you overhaul a old cummings.

[@gregbird6615]

Just some small fixes is all it took

[@tmscheum]

👍👍Al Gorithm comment👍👍

[@yoendygarcia8859]

that's what cummins wants 71 inlb with the firing oder and I fallow that step on every small and big cam and works perfect with the 6 inlb top stop don't work that good

[@Thedudeabides803]

Driving with that cage in your view would be as annoying as fuk.

[@richardlincoln8438]

That cage is there for a reason that you don't seem to understand.

[@richardlincoln8438]

@JohnYoung-nl4rg Going to be a very long day in the seat if you are annoyed by something required to be there is what i am saying.

[@richardlincoln8438]

​​@JohnYoung-nl4rg Just a few hours ago you told me- quote " i am sure he knows why it is there just like everyone else does. " Now you are asking me why it's there... such an amazing display of understanding of your own written words Mister Younglucy.

[@richardlincoln8438]

​​@JohnYoung-nl4rg Do you know what you are talking about or not ? Is it worth wasting time with you or not ? Is your name john or lucy ? Don't get me wrong, either/ or / both ... It's your month to celebrate !!!

[@richardlincoln8438]

@JohnYoung-nl4rg That wire enclosure , or something else that will perform the same function, is required for the acceptance by the forest service for contract firefighting. It's there to keep branches, splintered wood and the like away from the meat in the seat. Oh, and to be an annoying distraction for the small minded.

[@JACKATTACKED]

👍