Audi Repair Questions? Ask a Mechanic for Answers ASAP
Would the pick up pipe being clogged cause the cct not to operate? The cct and solenoid have both been replaced. Does the oil pressure determine the operation of the solenoid whick in turn adjusts the chain accordingly?
Cool cool. So the top part of the cct is spring loaded and the bottom run off the solenoid/oil pressure. Does this mean if the solenoid/oil pressure fails the the top guide will compensate by stretching so far the chain is running against the rocker cover?
Aha i see. So when the top guide has reached its extent it locks in place. Im a mechy of 9 years but have never come across this setup, thats why its doing my head in trying to understand its operation. So what i fathom if this is.... The oil pressure could be low so the bottom half of the tensioner is not operating. To compensate the loose chain, the top guide has extended to its max and locked in place. The chain still not being tight so flapping off the rocker cover. All this seems to be directing us in the area of the low oil pressure? Does the vvt run off the sensor at the front of the inlet cam or is this also determined by oil pressure?