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+--- Thread: pistion advance setting of pump Bosch (/showthread.php?tid=34375)
pistion advance setting of pump Bosch - niciou - 20-06-2016
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
pistion advance setting of pump Bosch - bashbarnard - 20-06-2016
You can adjust it more washers diffrent springs, playing with INternal pump pressure. What is it you want to achive?
RE: pistion advance setting of pump Bosch - niciou - 20-06-2016
(20-06-2016, 10:15 AM)bashbarnard Wrote: 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 ?
RE: pistion advance setting of pump Bosch - zx_volcane - 20-06-2016
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.
RE: pistion advance setting of pump Bosch - niciou - 20-06-2016
(20-06-2016, 10:46 AM)zx_volcane Wrote: 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
(20-06-2016, 10:55 AM)niciou Wrote:(20-06-2016, 10:46 AM)zx_volcane Wrote: 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
RE: pistion advance setting of pump Bosch - Ruan - 20-06-2016
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.
RE: pistion advance setting of pump Bosch - niciou - 20-06-2016
(20-06-2016, 10:55 AM)niciou Wrote:agreement of Ruan thank you(20-06-2016, 10:46 AM)zx_volcane Wrote: 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
(20-06-2016, 10:55 AM)niciou Wrote:(20-06-2016, 10:46 AM)zx_volcane Wrote: 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
I will remove its then takes up to nothing