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I guess I need to look into that with my current turbo install. Variable nozzle actuator can be set at closed throttle position sensor to restrict exhaust flow area. Ideally, exhaust back pressure should be equal to intake to keep turbine thrust bearing load at a minimum. With minimum...

I noticed the brake dust on those wheels. You have something not correct if the transmission is freewheeling. The hydraulic pump driven off the engine (through the torque converter shell) delivers plenty pressure and volume at 600 RPM to engage clutches and bands. The torque converter will...

The ones that burned out were in it since liberated from Ft. McCoy in 2012. AC 13Gs. I had purchased Duratherms that year from Rockauto as they were on sale for under 6 dollars each. Zero defects so far.

What a major pain. Swapped all 8 on my 1031 a little over a year ago. Took about an hour and luckily, none swelled. 4 burned out. 2 out of those 4 failed lost their spade blades in the extraction process. Corrosion or manufacturing defects? These parts are magnetic so corrosion is my guess.

Another timing trick good for a few degrees is to supply 12 volts to the case pressure solenoid. This is done for cold start, applying voltage lowers the case pressure which advances timing.. If this doesn't produce any noticeable sound change, the injection pump could be defective in the...

From my research, offset is used when the magnetic pickup tool cannot be aligned to the fixed pointer. I did find the IP base timing calibration in the -34 last night. Performed with IP off engine using compressed air to force plungers into the cam ring through the #1 outlet port with input...

All dynamics are set during calibration. Even the timing mark can be reset, using the proper tooling and measurements. So when you install a turbo and tighten the leaf spring screw, it slightly advances the max fuel timing as the plungers, shoes and rollers now contact the cam lobes sooner...

To make things more difficult, the DB2 injection pump base timing varies with injected quantity as IQ has the end of injection timing physically set. The start of injection varies with IQ, a longer stroke causes the rollers to contact the cams sooner. The centrifugal advance is set by transfer...