run it on the road today after getting the brakes in good working order. Now I have a turbo boost question. I disconnected the (now clean) banjo fitting and hooked a 0-30 psi test gauge up to the line coming off of the fitting, revved the car and the pressure actually went slightly negative. Next I removed the waste gate housing from in front of the turbo and checked to make sure that all of the ports were clean/clear. I even started the car up with the waste gate removed and observed the turbo spinning but I never got any positive pressure from the waste gate "port" although I more did not let it run up very much. I did notice that on the turbo side of the diaphragm there was a little "ridge" which could possibly be preventing the diaphram from sealing off. The diaphrahm looks original (215k miles on car). Can a turbo "wear" out where the clearances get so large that it stops providing boost? Can the wastegate spring wear/weaken to the point that it allows the boost to go to the exh manifold instead of to the intake manifold? I did notice that after reassembling the waste gate section and driving the car I could hear what I perceive to be "turbo whine" starting at around 2000 rpm and then the whine goes away at around 2500 rpm. Any thoughts/ideas etc.
thanks,
Jim
'95 E320
'97 CRV
'85 300D turbo