05-10-2020, 04:15 AM
Thanks for the video Pawel and very good of you to be patient with the iacv to see what is happening rather than opening the throttle and thereby changing what actually happens, good work, it initially appears that nothing is going on but it slowly falls into place, something to note is that the iacv opens with left-hand rotation and closes with right-hand rotation of the shaft which i found out in slow motion.
And opening the throttle produces a right-hand motion if the shutter speed does not fool me in slow motion and closes the throttle.
A lot of people would find this boring but i find it fascinating to see what happens and when, it supports what i have been constructing in my mind about what happens but does not answer all questions, on opening the throttle the piston closes the idle air, but we all know that the engine is trying to keep it from stalling, you can feel it, so why does the iacv do the opposite of what i would expect? i can now watch all assorted video's and work things out over time.
Initially it seems that the rotor has enough force to motivate the piston provided there is enough energy ( time ) to make that happen.
Sofar i think two things could be the cause;
1 the iacv pin is too long and is trying to interfere with the piston who is trying to stay in the center of the barrel, the rounded tip is wearing flat over time and produces more friction or
2 the change in the software for the 2014 model has a functin that affects the iacv, i just have a problem with how that increases the behaviour over time?
It would be cool to get the old iacv out, file the pin shorter by a fraction, clean out the swarf and put the same iacv back in for a trouble free ride.
Thanks for all the effort Pawel, i now have more bits of the puzzle to let my subconscious mind work on it.
And opening the throttle produces a right-hand motion if the shutter speed does not fool me in slow motion and closes the throttle.
A lot of people would find this boring but i find it fascinating to see what happens and when, it supports what i have been constructing in my mind about what happens but does not answer all questions, on opening the throttle the piston closes the idle air, but we all know that the engine is trying to keep it from stalling, you can feel it, so why does the iacv do the opposite of what i would expect? i can now watch all assorted video's and work things out over time.
Initially it seems that the rotor has enough force to motivate the piston provided there is enough energy ( time ) to make that happen.
Sofar i think two things could be the cause;
1 the iacv pin is too long and is trying to interfere with the piston who is trying to stay in the center of the barrel, the rounded tip is wearing flat over time and produces more friction or
2 the change in the software for the 2014 model has a functin that affects the iacv, i just have a problem with how that increases the behaviour over time?
It would be cool to get the old iacv out, file the pin shorter by a fraction, clean out the swarf and put the same iacv back in for a trouble free ride.
Thanks for all the effort Pawel, i now have more bits of the puzzle to let my subconscious mind work on it.