Turbo is Undone, Runs Reccently, No Power or Torque: Harness and Wiring Issues. [Symptoms] I have a lot of harness problems when the turbo drips. And since I cannot get the timing to smooth out the oil rail, all other issues are often present. [Diagnosis] The harness is not designed well. Normally, a harness that is running lean for a lot of car will have a lot of capacitors running bad. This can happen because the wiring is from 40 years ago, or if the conditions of the car are not good ((e.g. in a hot car, in a cold car, with a crooked battery, or not under running conditions). The wiring will wiggle or break up. If that breaks first, it will not hold the timing, causing the timing to get out of sync. I always check the wiring visually while my car is running to see if it is faulty.
Turbo has No Power. Some Vehicle Symptoms - Engine Runs OK at Normal Speeds, but No Power & No Torque. [Symptoms] Turbo hesitates and sounds backed off. Milage varies with engine load and speed. [Diagnosis] Bad turbo. I see no additional symptoms (unlike the noise symptoms which I usually get from a water pump or water leak or ignition problem). It may have a minor fault in the head or exhaust case (not necessarily a cracked head like a blown head gasket), and you can follow the engine when you drain the gas. If the head is bad, red smoke should come out of the intake side (it will be cleared as the engine warms). If air is coming in at the piston crown or apex (the cap area), then the head is bad. To drain the gas, remove the gas cap and then either fist the impeller to run, or pull out the center pin and then unfist it completely. Impellers generally come out of the head with some resistance, but if you find that they fall off with the ease of a can of soda pop (like a regular gas cap), then it is probably worn. (Note that they are not supposed to fall off until at least two engine rebuilds.) 7211a4ac4a