Originally Posted by
project rs
should i try increasing the pre-load then and thats making it longer i think, it's just got a bleed valve on it at moment
That'll be why you gettin such a huge spike then !!
You need to decrease the length of the rod (sounds good ay ?
) which essentially closes the spring up inside the actuator making it stronger so it takes mor postive pressure to overcome the strength of the spring. The bleed valve should be used really for minor adjustment !!
How I'd do it is (wait for car too cool down
), get a old foot pump & lob the valve attachment off the end of the pipe. Attach that to the actuator after undoing the 11mm nut. Pump up to your given pressure (16 psi ??), then pull the rod off the wastegate (circlip or R clip usually), push the waste gate shut with your hand, then wind the rod in until it slips comfortably over the wastegate pin in it's closed postion. Then do up the 11mm & re attach the vacuum pipe.
Either that or undo the nut & use a pair of grips to tighten the shaft into the rod !!
jb
P.s. hope this helps !!
P.p.s. If you gonna do this, don't forget to close the bleed valve up before driving the car otherwise your'll get a HUGE boost spike !!
and blow the engine up !!
(been there, done that)