If the cvvt mechanism is working properly, once you get the timing belt off you should be able to rotate the hub back and forth. Some of them are spring loaded, on my S60 it was not. This is part of the reason you need to be able to see the back end of the cam- the gear and hub mechanism can appear ...

The CVVTs themselves have a factory tolerance that is acceptable. I think jimmy57 quoted me 1.5 mm of axial movement as being the maximum. Once you get them off you'll be able to see what I mean. The CVVT with the most axial play will most likely be the one that was leaking. It's usually not that th...

Hello, I have oil leak on a right side of the engine. Hard to tell where. I have just taken out the plug from the VVT wheel and found out there is a lot of oil. Is it normal that there is oil or it is indicating that the hub is leaking? The cam seals can leak if crankcase has pos pressure instead o...

Oil there is totally normal. If I recall the shop manual even says to get a rag ready.

How many miles? Your cam seal may be tired and due for a replacement. May want to do all four while you are at it.

first off, many thanks to Precopster, Cuhfs, and Nautic for their great collaboration on devising a way to open up the transmission internal filter to cure pump starvation and restore normal transmission operation. My symptoms: I recently decided to do a trans drain & fill since this X/C 70 had ...

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If that link doesn’t work just search for “AW55 woes” and it comes up. It’s a very long discussion but will give you all the information you need to decide if this is appropriate for you.

Isn't the timing pulley keyed?

It is, unless the splines are ruined. (Very rare)

Clean the splines by pulling a rag with carb cleaner through and you will see there is a thick spline that has to match the wide notch.

It will only go on one way.

The technical name is petcock. It might help to use that in your search.

2003 S60 5 cylinder.
Cylinder 1 Blue
Cylinder 2 Brown
Cylinder 3 Yellow
Cylinder 4 Pink
Cylinder 5 Violet

Wish Volvo would standardized this to the Electronic color code across all models.