Quote:
Originally Posted by SteveSAS
Hi Knio,
From what I know these phasers they have a heavy return spring which sets phase to zero when there is no oil pressure. Can you move the 2 parts of the phaser back and fourth easily on the original one? Compare it to new one. It maybe stuck in one position.
Why this has happen is another question. Maybe related to low oil level.
Did you also compare length of the old timing chain vs new one?
Also, there are 2 solenoid valve on the front cover. Check these are working and not stuck open.
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I can't move the phasers by hand. I think there's also a locking pin at zero that engages with no oil pressure. See this youtube:
https://youtu.be/o61LjDqHzoQ
But, before I disassembled this, I manually gave power to both the solenoids while the engine was idling, and I confirmed that they both work, and the phasers do actually advance the timing. So the solenoids and hydraulics did appear to be working.