pistion advance setting of pump Bosch

[niciou]

Hi everybody


I would like to know how we rule the pump ahead of a piston injection there are 2 springs with 2 washers


can t we add another washer ?


I have touched on everything except my pump this place are that the more springs must be compressed ? and what is his ?

thank you

[bashbarnard]

You can adjust it more washers diffrent springs, playing with INternal pump pressure. What is it you want to achive?

[niciou]

You can adjust it more washers diffrent springs, playing with INternal pump pressure. What is it you want to achive?

I have not understood that what I want ...?

and adjusting the internal pressure over the washer on the piston advance what we get ?

[zx_volcane]

Spring rate and preload (washers) in the advance piston control the dynamic advance curve.

Not sure why you would want to alter this, especially without a test bench to measure dynamic advance Vs RPM.

In my experience a little bump (a few psi) might help offset larger heads/plungers - but without measuring and being awfully careful you can easily end up with a bag of marbles.

[niciou]

Spring rate and preload (washers) in the advance piston control the dynamic advance curve.

Not sure why you would want to alter this, especially without a test bench to measure dynamic advance Vs RPM.

In my experience a little bump (a few psi) might help offset larger heads/plungers - but without measuring and being awfully careful you can easily end up with a bag of marbles.

I asked her just like to understand

I thought his performance really will greatly but if you told me that there is a risk and that I not win

lot by adjusting the piston drops it .

I have a valve piston in the end I do not plugged the es

---

Spring rate and preload (washers) in the advance piston control the dynamic advance curve.

Not sure why you would want to alter this, especially without a test bench to measure dynamic advance Vs RPM.

In my experience a little bump (a few psi) might help offset larger heads/plungers - but without measuring and being awfully careful you can easily end up with a bag of marbles.

I asked her just like to understand

I thought his performance really will greatly but if you told me that there is a risk and that I not win

lot by adjusting the piston drops it .

I have a valve piston in the end I do not plugged the es

Red arrow

[Ruan]

That piston is purely for cold start, it gives more timing when the engine is cold, but it doesn't add any more timing at full speed, only at low RPM.

[niciou]

Spring rate and preload (washers) in the advance piston control the dynamic advance curve.

Not sure why you would want to alter this, especially without a test bench to measure dynamic advance Vs RPM.

In my experience a little bump (a few psi) might help offset larger heads/plungers - but without measuring and being awfully careful you can easily end up with a bag of marbles.

I asked her just like to understand

I thought his performance really will greatly but if you told me that there is a risk and that I not win

lot by adjusting the piston drops it .

I have a valve piston in the end I do not plugged the es

---

Spring rate and preload (washers) in the advance piston control the dynamic advance curve.

Not sure why you would want to alter this, especially without a test bench to measure dynamic advance Vs RPM.

In my experience a little bump (a few psi) might help offset larger heads/plungers - but without measuring and being awfully careful you can easily end up with a bag of marbles.

I asked her just like to understand

I thought his performance really will greatly but if you told me that there is a risk and that I not win

lot by adjusting the piston drops it .

I have a valve piston in the end I do not plugged the es

Red arrow

agreement of Ruan thank you

I will remove its then takes up to nothing