Originally Posted by
tabetha
If your penny washer, and wear is this bad, I wouldn't leave it too long before a recon one, they normally wear in the actual housing, the crack in the seat as there always is doesn't normally cause a problem, but new turbine housings are £150, if not already done so a 360 bearing needs to be in there with any rebuild at stage 1.
As said 1 bar is the norm for stage 1, or 14.5038 psi!!
tabetha
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
