Proud owner of a Mitsubishi Tractor.

[RED-85-Z51]

Well, I got it.

Picked it up this morning.

I managed to get the hood, and front end off. And I got the radiator out safely.

I put the jumper box on it, and did some tests. The ignitors both glow RED hot, and it turns over good, just too slow to even be close to starting. The battery is shorted, and drags the booster down.

But so far so good. Got the handles are freed up, and the clutch wasnt stuck or anything. PTO moves, brakes work, absolutely 0 play in the steering.

Tomorrow Ill try a hot battery, and clean out the 8 year old diesel, bleed the system, and MAYBE try and pop it off.
:thThumbsU

[CatDaddy]

Sounds like you've got things well in hand. Let us know when it fires up. :fing32:

[RED-85-Z51]

Sounds like you've got things well in hand. Let us know when it fires up. :fing32:


Will do.

It is REALLY heavy duty. The rear Ag lugs look great, and have fluid, and no rust.

The Fronts are Tri-Rib, and look great, also dont leak.

The Haban mower is bad. All 3 spindles are loose, but not seized. Belt look good, and all the idlers are loose. Surface rust, but no thin spots.

The radiator was dirty, but it cleaned up nicely.

I want to pull the head, and check the gasket and decarbon it...but I dont DARE break the seal :tsk:

[CatDaddy]

Got any pics to show it off?

[Michael]

I want to pull the head, and check the gasket and decarbon it...but I dont DARE break the seal :tsk:

I agree with you on that, I would not want to break the seal also and I would wait and see how it runs first. But as CatDaddy ask we want pictures...if at all possible. :wwp: :goodl:

[RED-85-Z51]

Dropped in a hot fresh battery, drained the tank, cleaned the filter, purged the injector pump with fresh fuel, and bled the lines a little..best I coule manage was a momentary series of black smoke and loud knocks. It ran for maybe 2 seconds and died.

Now it just spits white smoke, occasianlly black smoke when it tries to start, then back to white.

[Volfandt]

Does it have glow plugs? Diesels that have quite a few hrs on 'em won't start very easily when cold.
The smaller the diesel the less forgiving it is with having air in the system.

A trick old timers would use would be to put a heater under the engine, enclose the area around the tractors front end with a tarp or similar and let it heat up the block for a couple hrs. This would help to get it started so it can be bled off more thoroughly.

Notice I ain't mentioned starting fluid or ether, they'll ruin an engine....
Good luck
Volfandt

[RED-85-Z51]

IT LIVES.... :thThumbsU

I got the new battery charged up, and kept pouring diesel down the intake..so much that it would start to hydro lock...then it started to sputter, and I got it to run on whatever I poured down the intake...I did this for 30 minutes, and out of nowhere, it started running on its own. It hunted for a minute, and smoked terribly...then it smoothed out.

I cant run it more than 30 seconds at a time..no cooling system.

Ive got to straighten the radiator mounting frame, and get the radiator mounted again.

Good news though. The Tach works, and the Oil pressure gauge shows 65psi :bannana:

[Wingnut]

You will want to add some Power Serive Diesel 9-1-1 (http://www.powerservice.com/) to clean any residue fungus from the fuel system.

[mark777]

You will want to add some Power Serive Diesel 9-1-1 (http://www.powerservice.com/) to clean any residue fungus from the fuel system.

Boy is that the truth!

I use it in every Japanese tractor that I have (and had) with a drastic improvement in spotlessly clean fuel systems, easy start up and with a slightly higher cetane boost. The performance in almost immediately noticeable.

Mark

[Jim_WV]

C'mon Red show us this beast ! :wwp:

[RED-85-Z51]

I drove it from the middle of the yard where I unloaded it, about 50 feet to the front of the shop and shut it down. Let it cool, and did some preliminary repairs to the grille and hood, and the mounts. Got the radiator and shroud monuted in the hood...got it half mounted only to realize that the fan was pressed against the shroud. Then I noticed that the lower mounts, which looked fine, were about an inch off on one side..so it all came back off.

I reached up, gave it a quick heat, cranked it over and it caught, sputtered, then died.

Wouldnt refire. Poured some juice down the intake and it popped off and ran for an instant.

So it is bakc to square one, except now I know it CAN run, quite well in fact.

I took BOTH fittings OFF the injectors and popped it off with juice and kept it running for 15 seconds, and never got ANYTHING out of either Lines.

So Im not pumping again, or something.

Any suggestions? It is a KE70 (40 cid) Mitsubishi Diesel.

[mark777]

...........

So Im not pumping again, or something.

Any suggestions? It is a KE70 (40 cid) Mitsubishi Diesel.

I'm probably not stating anything you don't already know but there are three problematic areas in these tractors fuel systems. The fuel filter bowl can become distorted and develope a hairline crack, the "0" ring may be old and slightly deformed and the fuel tank vent may be clogged.

Pretty sure your tractor is a gravity fed direct injection fuel system (no assist or lift-pump) and if the exhaust is not clogged and the air filter relatively clean....It just has to be air contaminated fuel. Somewhere the system is sucking miniscule amounts of air. A simple test to make sure would be to bleed just before the fuel/shutoff, just after the fuel/shutoff and at the banjo fitting on your pump. Let each point (in that order) bleed for several seconds. It is not necessary (or advisable) to bleed fuel from the injectors. Restart the engine....if it runs, it was air. If it runs and then dies after a few seconds...it IS air. I'm about 90% certain...but I have been wrong before :).

Does your model have a decompression handle?

Good luck with your new rig!

Mark

[glenn27]

Congrats --Red--didn't know if you would end up w/ it or not----but you've done good...

can't say another tech word here as the diesel guys have said the words you need to hear.....A small diesel like this is a learning experience... :goodl:

[RED-85-Z51]

I went out LATE last night and pulled the injector box plungers out. Cleaned them out, and blew out the lines.

Bled the box a little, and put it all back together.

Gave it an extended HEAT, and cranked it over, and the old girl fired right up, and ran great.

I let it sit overnight, and this morning, it turned over one time and caught.

I straightened the rest of the radiator mounts, and got it on, hooked the hoses up, and even went ahead and wired the lights up...added water, and WOULD YOU believe, NO LEAKS, and it cooled it GREAT.

Block was just hot enough that you could hold it for 3 seconds.

I drove it around for 30 minutes, and found a water leak, at the front of the water pump. It's leaking past the seal.

But I tried ALL the gears, all the PTO speeds, Differential lock, foot throttle, independant brakes...everything worked, even the Hour meter.

After it is warmed, it Idles at 1000 rpms, with 45psi of Oil pressure.

At full thottle, it is around 2700-2800, and has 65psi HOT.

Gawd I love this thing!

Oh, and both lights worked!!! :sidelaugh

[bobo]

IT LIVES.... :thThumbsU

I got the new battery charged up, and kept pouring diesel down the intake..so much that it would start to hydro lock...then it started to sputter, and I got it to run on whatever I poured down the intake...I did this for 30 minutes, and out of nowhere, it started running on its own. It hunted for a minute, and smoked terribly...then it smoothed out.

I cant run it more than 30 seconds at a time..no cooling system.

Ive got to straighten the radiator mounting frame, and get the radiator mounted again.

Good news though. The Tach works, and the Oil pressure gauge shows 65psi :bannana:

Interesting that you would try and start a diesel by pouring diesel in the intake.

[RED-85-Z51]

Interesting that you would try and start a diesel by pouring diesel in the intake.


Why?

Sure aint using Ether..

http://www.satohparts.com/images/Parts/General%20Information/parts8.html
http://www.satohparts.com/images/Parts/General%20Information/parts9.html


This is exactly what it looks like, minus the 4wd.

http://www.satohparts.com/mit_us15.html

[bobo]

Why?

Sure aint using Ether..

http://www.satohparts.com/images/Parts/General%20Information/parts8.html
http://www.satohparts.com/images/Parts/General%20Information/parts9.html


This is exactly what it looks like, minus the 4wd.

http://www.satohparts.com/mit_us15.html

Did you pull the plungers or did you pull the delivery valves? did you see the gear on the plunger .If so How did you time the pump plungers.Have you run it to governed speed and back to idle.
Red Hydolocking a diesel is not a smart thing to do.It might be wise for you to read about diesels before you hurt your wallet

[RED-85-Z51]

Did you pull the plungers or did you pull the delivery valves? did you see the gear on the plunger .If so How did you time the pump plungers.Have you run it to governed speed and back to idle.
Red Hydolocking a diesel is not a smart thing to do.It might be wise for you to read about diesels before you hurt your wallet


I pulled the 2 little lounger lookign things out of the top of the pump. They go into the fittings that connect to the hard lines that go into the injectors.

Yes, I ran it up to 2800-2900, and it idled as low as 400.

I didnt hydro lock the engine, I just got it real wet to start it. It runs great now. I must have put 3-4 hours on it today.

[bobo]

IT LIVES.... :thThumbsU

I got the new battery charged up, and kept pouring diesel down the intake..so much that it would start to hydro lock...:





I didnt hydro lock the engine, I just got it real wet to start it. It runs great now. I must have put 3-4 hours on it today.

Post #8 you said it was .

[RED-85-Z51]

Post #8 you said it was .


You quoted post #8, and as I said, it "was starting to hydro-lock" which means that the quench area was getting tight, but it never actually hydrolocked.

If it had hydro locked, I would have had to loosen the heaters, and blow out some of the excess fuel.

[RED-85-Z51]

Anyone got any Idea what size belt goes on a MT372 with a 50" Haban belly mower?

Tommy-

[bobo]

http://www.mytractorforum.com/attachment.php?attachmentid=14656&stc=1
http://www.mytractorforum.com/attachment.php?attachmentid=14658&stc=1
http://www.mytractorforum.com/attachment.php?attachmentid=14657&stc=1


Red Here are pictures of the Mitsubishi L3A-61BG in one of my garden tractors..Tough little Diesel..Lite on fuel to..

[RED-85-Z51]

This little KE-70 is smooth.

Im surprised that a little 40cid engine could have so much power!

[The Terminator]

Tommy,
Old thread I see, but, did you see my Mitsu? I got it today. Any advice? Best - Ted