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How to properly view and setup a 1.8T cam chain with adjuster before installing a belt.
The RT wiki, and ref pictures, are as misleading as the incorrect information in the repair manuals.
The exhaust cam should appear as if slightly retarded in the relaxed position of the adjuster.
The notch should not line up yet , however the intake cam will be dead on in the 12 O'clock notch position during setup.
You may ask why is this?
The cam timing is advanced when the belt is on & when no oil PSI is present at the adjuster.
Oil PSI is used to retard the timing once in operation, and once the PSI is achieved.
Hence why if an oil sump is plugged with sludge you get an over advanced G40 DTC.
The timing starts at the full advanced position, to aid in cold starts, & is achieved via the tensioner springs within adjuster.
When oil PSI is made during engine operation, to the base of the adjuster, the notch's than move into alignment of 12 O'clock.
The factory repair manual has always done a very poor job of explaining this, & further uses pictures that are misleading.
Please note:
This thread is not an Infomercial to solicit any parts or business with anyone!
The proof is in the proof..........
The RT wiki, and ref pictures, are as misleading as the incorrect information in the repair manuals.
The exhaust cam should appear as if slightly retarded in the relaxed position of the adjuster.
The notch should not line up yet , however the intake cam will be dead on in the 12 O'clock notch position during setup.
You may ask why is this?
The cam timing is advanced when the belt is on & when no oil PSI is present at the adjuster.
Oil PSI is used to retard the timing once in operation, and once the PSI is achieved.
Hence why if an oil sump is plugged with sludge you get an over advanced G40 DTC.
The timing starts at the full advanced position, to aid in cold starts, & is achieved via the tensioner springs within adjuster.
When oil PSI is made during engine operation, to the base of the adjuster, the notch's than move into alignment of 12 O'clock.
The factory repair manual has always done a very poor job of explaining this, & further uses pictures that are misleading.
Please note:
This thread is not an Infomercial to solicit any parts or business with anyone!

The proof is in the proof..........

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