Originally Posted by
chrisa3
Thanks for all the excellent advice. The penny washer was sitting high, ie was sitting bout 4-5mm high and wasnt sealing the hole properly. Think the sleeve must have moved. Anyway problem solved now and seals nicely.
I set the actuator by taking the arm off the wastegate then pressurised the actuator to 0.5bar and at that point extended the arm so that it fitted straight onto the closed wastegate arm. I read somewhere that this was how to set it to factory settings. But by doing so, the stage 1 chip initially boosts to just over 1 bar, then i assume the AMAL valve is releasing pressure to the actuator, causing the boost to drop to a factory 0.7bar (10psi?). So am i right in thinking that by shortening the actuator arm this will cause the boost to hold at 1 bar once the AMAL valve releases pressure to the actuator??
Looking at the actuator arm, to shorten it enough to give a further 0.3 bar, i will probably have to turn it approx 7 full turns? which looks as if it will use most, if not all the threads. (must be a standard actuator).
This is my first experience with a cosworth, I have come from Honda Type R's and subaru's, and so far.. i likey

the boost pressure should be set to the parameters of the chip inside the ecu; as said, normally 1 bar for stage 1
i full turn normally equates to just under 1 psi, so be careful!
cossie's are the simplest & easiest engine to work on...maybe part of the reason why they have such a cult following!
assuming the engine is in good order; you may as well go straight for stage 3; you'll get bored at stage 1 very quickly
always a good move to get the fueling checked; especially if the chip origins are unknown
get some pics up of the 3 door