Kubota v1505 de restriction

[doobin]

Not turbo. Naturally aspirated. Pre the latest round of emissions, this engine made 35hp. Now it makes 26hp.

It revs the same, so it must be set to use less diesel each stroke? Has anyone successfully adjusted the injection pump to take it back to the pre euro 4 standard 35 horsepower?

 

[6feetdown]

Not turbo. Naturally aspirated. Pre the latest round of emissions, this engine made 35hp. Now it makes 26hp.

It revs the same, so it must be set to use less diesel each stroke? Has anyone successfully adjusted the injection pump to take it back to the pre euro 4 standard 35

You forgot to put your asking for a friend

 

[Monkeybusiness]

Not turbo. Naturally aspirated. Pre the latest round of emissions, this engine made 35hp. Now it makes 26hp.

It revs the same, so it must be set to use less diesel each stroke? Has anyone successfully adjusted the injection pump to take it back to the pre euro 4 standard 35 horsepower?

Does it definitely rev the same? I thought they had to change the pulley ratios in the chippers that these are fitted in.

 

[Steve]

Does it definitely rev the same? I thought they had to change the pulley ratios in the chippers that these are fitted in.

Probably had to change pulley ratios because it is making less Power.

 

[doobin]

From my research so far, there’s a rack screw under a tamper cover and remove one to three shims to advance the timing.

 

[doobin]

Does it definitely rev the same? I thought they had to change the pulley ratios in the chippers that these are fitted in.

Yes. The chippers used to rev at 3600, which was nigh on 40hp. The engines I have are 3000rpm rated and rev to 2850 for their 26hp.

 

[TiltyShaun]

So is this is a case of burn less fuel for longer?

 

[doobin]

So is this is a case of burn less fuel for longer?

Exactly. Creeping up the hill at full revs.

 

[Steve]

From my research so far, there’s a rack screw under a tamper cover and remove one to three shims to advance the timing.

This will give more fuel when it is working hard. You can also get longer plungers for the pump which will give it more fuel all the time but I am not sure if that is a good thing.

 

[doobin]

This will give more fuel when it is working hard. You can also get longer plungers for the pump which will give it more fuel all the time but I am not sure if that is a good thing.

The shims?

It only needs more fuel when working hard. Around the yard it's great in high range at 1700 revs even! But offroad up a hill you're in low range and having to tickle the pedal not to bog it. I only rev it flat out for that sort of work, and it needs more.

 

[Steve]

The plungers are accessed by removing the top part of the pump remove the pipes & I think the top is held down with Allen screws, no tamper proof screws in the top.

 

[Mick-the-fitter]

On the 1505 I thought there was a rack stop to the side of the stop solenoid this is normal adjusted and locked off for max