Price Check Looking to buy rebuilt Yanmar 155d with FEL/backhoe/tiller for $5,500

[Iowayanmar155d]

When I go look at it and test it I'll get some pics...

 

[kenmac]

You sure? My YM240 has a safety wire with a lead seal, on the governor. The wire is cut, I suppose from someone tinkering. I've never looked to see if (either) YM186D had that wire.

I have an adjustable throttle rod at the injection pump..I haven't tried, but I would say I can adjust mine for more fuel

 

[winston1]

I have an adjustable throttle rod at the injection pump..I haven't tried, but I would say I can adjust mine for more fuel

These old YM governors have a limiter on them that is set to allow a maximum speed. I don't believe adjusting the throttle rod would give more fuel, it is usually adjusted to obtain idle speed and on ones without the kill cable it is adjusted to cut the fuel off for killing the engine.

I am not saying you can or cannot get more out of the pumps, I really don't know, but movement of the fuel rack changes the stroke of the plungers and therefore the amount of fuel being pumped. In my mind a properly operating governor and pump is going to supply all the fuel the engine can handle. More fuel is only going to cause more black smoke. This is just my theory, don't take it to the bank for a loan.

 

[careyo63]

If the Throttle isn't opening the pump up all then way then sure it will give you more performance. Not necessarily HP.. HP comes mainly from Piston Cyl. Size, Stroke, Valves/Size, Cam etc. You can inject all the fuel you want in it. But you have to combust it. To much fuel with Lack of combustion= BLk. smoke.

 

[Gunny]

I'd surely take a chance on it, as someone mentioned, the backhoe alone is worth at least half of the asking price. (I'd offer a little less, but if he didn't budge, then I'd take his asking price)

 

[bigmog]

all that can be achevied on the yanmar pumps is advance, or ****** the timing by varying the shim stack under the pump, and a small increase or decrease in the "pop off" pressure of the injector, again by changing the shim stack in the injector..............the only way to increase power would possibly to fit a turbo ?

 

[normde2001]

The stock fuel pump setup already puts out more fuel than the injectors can handle. That's why the need for the fuel return lines as in any fuel injector system. Increasing fuel output at the pump only means more fuel in the return lines.

 

[professor]

Just my 2 cents but the YM155 is near 40 years old. At 330 hrs. on the meter that is about 8 hrs. of use per year. I owned a YM 155D and it was a tough little tractor.

 

[DavidSetness]

I have a 155d and LOVE it. Just got a disk and flail mower for it. Know where I can get a "turbo" for it? A little more power would be great as I am looking into a wood chipper.

 

[Iowayanmar155d]

Ya I loved it but just sold it ha... I couldn't say no. I bought it for $5,000 and a guy bought it from me for $11,000.... now I have to find another!