I've had a very good look at an enlargement of the photograph in V40DSchariot's last post. I don't think it's a valve of any sort; certainly nothing to do with the air inlet shut off butterfly valve. It seems far more likely to be a differential pressure sensor...having two input pipes ( one of which has been detached by V40DS) which seem to feed to either side of an internal diaphragm....thus sensing the difference in pressure between the two input pipes. The electrical connection can clearly be seen behind the sensor, with the corrugated trunking apparent. I would love to know where the two pipes from it went to...especially the one that's been taken off!!
I'm rather hoping this sensor will have something to do with my weird surging problem...which is still apparent, and occurs only from 2800 to about 3300 rpm.
Last edited by molemot; Aug 3rd, 2013 at 21:43.
|