Looking to buy a 240D

[Scotty Dive]

I am going to look at a 240D with high hours. I have been reading up on other posts for info and have a few questions.

Is there anything particular to look for in this model? Does this model have a water pump? does it have a hundred or thousand hour meter - and is it true the hour meter spins fully at full rpm's and slower at lower rpm's? . How do you check for blow by?

What would a high hour (4000) 240D with FEL and BH be worth?

 

[clemsonfor]

I am going to look at a 240D with high hours. I have been reading up on other posts for info and have a few questions.

Is there anything particular to look for in this model? Does this model have a water pump? does it have a hundred or thousand hour meter - and is it true the hour meter spins fully at full rpm's and slower at lower rpm's? . How do you check for blow by?

What would a high hour (4000) 240D with FEL and BH be worth?

To answer your questions with my opinion. Trouble spots, umm, make sure the 3 pt works. Thats about it and make sure all gears in all ranges work and wont jump out. The hour meter is 3 places with a tenths place (really 4 #'s shown) So once the tractor reaches 999.9 hours it will flip back to 000.0. You are correct the tractor will turn 1 hour on the meter at 2400rpms for 1 hour of run time. So at 1200rpm it will take about 2 hours of wristwach time to get 1 hour to show up on the hour meter. I usually will bushog for say 4 hours and end up with 2-3 hours on the meter depending upon how fast the engine is going and how much i slow down etc.

A 4000 hour meter tractor to me would only be worth about 1-1.5K w/out loader, that would be without a rebuild, with a decent rebuild you can be creeping back into the 2-3k range. Thats my opinion though. Most say these that actually have 4000hours on them are ready for something to need to be done, weather its new rings and bearings or something more like pistons cyl hone rings and bearings etc. And to know it has 4K on it it would have to be the original owner or second that was told by the first as there is no way to tell.

As far as blowby, there should be a rubber hose about 1/4 coming off the side of the block on the right side as your sitting in the seat. It will run down and just end in mid air around the hard hydro lines. If there is a lot of oil slobber blown on the side of the block this would be a good sign of blowby. The rubber hose may also not exist, in that case there is a fitting still on that side that it just pushes onto, if i remember right its a metal j tube pointing down that the hose should be on. Its a little above the injector pump and foward a little. I would run it up to 2400rpm, the fully ratted HP rating and drive around while looking at that tube and see if you see smoke or mist coming out of it, you can also let it run at 2400rpm and stand beside it and feel for air mist coming out, mine has just a little pressure , which i think is just from the rotation of the crank inside, but no spray mist or anything, a drip now and then but not constant. You also should put the tractor under a load and observe this weather it is a boxblade you put down to "work" the tractor or a disk in the ground or a bushhog that you set really low to tax the motor, it will let you know and if you dont see blowby at that point chances are it dosent have it.

 

[winston1]

I am going to look at a 240D with high hours. I have been reading up on other posts for info and have a few questions.

Is there anything particular to look for in this model? Does this model have a water pump? does it have a hundred or thousand hour meter - and is it true the hour meter spins fully at full rpm's and slower at lower rpm's? . How do you check for blow by?

What would a high hour (4000) 240D with FEL and BH be worth?

Yes, it has a water pump. I believe the 240 has a crankcase vent tube that comes off right under the muffler. Won't be unusual to have a little blow coming out but shouldn't be excessive. Here is excessive. YouTube - Yanmar 155D Crankcase Vent My owners manual for my ym2002d says hour meter is calculated at about 2200rpm. I don't know which hour meter the 240 has. Has the tractor ever been overhauled? If so, the high hours would not be as important. I'll stay away from putting a price.

 

[careyo63]

Clemsonfor posted it to the (T) for our area. Here is a pic. of the vent tube on a Ym2000. It's the shorter Blk. hose coming out of the block above the Blk' fuel line. It's basicly the same as the US. Ym240. Throttle linkage works the opposite and I believe you only have 540 or first gear PTO. and the Grey has three. Everything else is pretty much the same. You will find all kinds of Info. on here for these models with alot of owners

Carey

 

[Scotty Dive]

Thank you all. this is very helpful. I am excited that this animal has a backhoe but my heart sank when I heard 4000 hours. I have to ask if it has been rebuilt etc, but he did not mention it so far. A huge concern of mine.

By the way.... what is the (T) for our area?

 

[careyo63]

Wow!!! I guess I'm showing my Age. (T) is Old School or For Precise Discription or to the Point. Where are you Located ?

 

[normde2001]

Unless you are really into working on tractors, I would steer clear of a 4000 hour compact tractor. Most gray markets of the same age have less than 1000 hours.

 

[MJPetersen]

I would not be afraid of 4000, but am not sure how the seller knows that it has that many hours. Maintenance and condition are much more important than hours. If all fluids look and smell right and everything works without too much sloppiness I would say go for it. That is a very popular model with lots of parts and advice available. I have heard people say that that little Yanmar engine will go 6000 hours or better before an overhaul is needed.

Mike

 

[clemsonfor]

MJ where have you been, not seen you here much lately. Hope you and yours had a merry christmas.

 

[wfi3]

ok so what causes blowby

 

[YannyMan]

Exhaust getting past the piston rings and into the crankcase. The gas "blowsby" the pistons and rings. Makes the engine more inefficient and creates positive pressure in the crankcase.

 

[normde2001]

ok so what causes blowby

Anything that will cause pressure in the crankcase, (should have a vacuum), generally bad rings, but could be oil overfull, bad dipstick seal or bad crankcase vent.

 

[MJPetersen]

Worn Rings on the pistons and worn sleeves/cylinder walls.

I have been busy with ministry and have not had time for hobbies lately. I was just today complaining that I have not done a single thing in the shop like welding or fabricating something for a long time. I feel like I am just getting caught up now and was thinking that tomorrow -- But they are predicting 4-8 inches of white powdery stuff tonight so maybe my shop time will be delayed again.

Mike

 

[California]

I don't think there is a vacuum in the crankcase on these old diesels. Rather, a slight positive pressure from minimal blowby.

What makes the crankcase vacuum on a gas engine is the PCV tube between the crankcase and the intake manifold, beyond the throttle butterfly, where a vacuum exists at all times except full throttle. (The purpose for that line is to suck crankcase vapors into the intake so they get burned in the engine). A diesel has no butterfly, it is full throttle all the time with engine power controlled only by limiting the fuel quantity.

 

[clemsonfor]

ok so what causes blowby

Worn rings on the piston causing combustion gasses to "blowby" the piston skirts into the crankcase.

Im sure im not the first to respond to this as i see there is another page, and i have not clicked to the second page to read them yet, so sorry if its a repeat.

 

[normde2001]

I don't think there is a vacuum in the crankcase on these old diesels. Rather, a slight positive pressure from minimal blowby.

What makes the crankcase vacuum on a gas engine is the PCV tube between the crankcase and the intake manifold, beyond the throttle butterfly, where a vacuum exists at all times except full throttle. (The purpose for that line is to suck crankcase vapors into the intake so they get burned in the engine). A diesel has no butterfly, it is full throttle all the time with engine power controlled only by limiting the fuel quantity.

Yep, depending on the article, it appears that a google on "diesel crankcase vacuum" gets about a 50/50 result of slight vacuum or slight pressure.

 

[winston1]

ok so what causes blowby

worn out rings.

 

[California]

Yep, depending on the article, it appears that a google on "diesel crankcase vacuum" gets about a 50/50 result of slight vacuum or slight pressure.

... but if there is no PCV hose (or modern smog control components) then any crankcase vacuum can only be created by the 'road draft tube' moving quickly down the highway per Wikipedia. There isn't any other way to make a vacuum in an otherwise-sealed crankcase.

And I doubt these go fast enough to make enough vacuum that way to exceed blowby.

 

[Scotty Dive]

This has been great. I was all packed up with my trailer, towing straps, tools, my inspection checklist but unfortunately, today I had some guests who stayed longer than planned and I could not get to see the tractor because it would be dark by the time I got there - a 2.5 hour ride. Also the owner called and told me that when he started the tractor and engaged the BH, he broke a CV joint like coupler that he had welded on that powered the BH via the PTO. He has another interested party coming on Sunday morning and I cannot get up there for another two weeks, so it looks like I may have missed out on this one.

BUMMED OUT

So my search continues - I also confirmed the hours to be 2400 - not as bad as the 4000 I thought I originally heard. Thanks and Happy New Year

Scott

 

[clemsonfor]

This has been great. I was all packed up with my trailer, towing straps, tools, my inspection checklist but unfortunately, today I had some guests who stayed longer than planned and I could not get to see the tractor because it would be dark by the time I got there - a 2.5 hour ride. Also the owner called and told me that when he started the tractor and engaged the BH, he broke a CV joint like coupler that he had welded on that powered the BH via the PTO. He has another interested party coming on Sunday morning and I cannot get up there for another two weeks, so it looks like I may have missed out on this one.

BUMMED OUT

So my search continues - I also confirmed the hours to be 2400 - not as bad as the 4000 I thought I originally heard. Thanks and Happy New Year

Scott

Thats not that bad i would have driven and taken sever lights to look.