Help with setting timing 2003 S60 AWD

justcruising · Post by **justcruising** » 23 Sep 2021, 19:14

Just purchased a 2003 S60 Turbo AWD. It is throwing code 0016.
I've checked the timing marks on the crankshaft and the valves.
As I crank the crankshaft around (clockwise)...

First rotation:
-Crank aligned
-Intake aligned
-Exhaust mark at 5 o'clock

Second rotation
-Crank aligned
-Intake at about 6 o'clock
-Exhaust at about 11 o'clock

Third rotation
-Crank aligned
-Intake aligned
-Exhaust at 5 o'clock

I am assuming that to correct this, I need to rotate to the point where the crank and the intake are each aligned, and then adjust the exhaust so that it is also aligned. Does this sound correct given the above?

How do I know that it is safe to rotate the cam and that someone didn't time it previously not using the mark? It seems like this must be the case, as how could the timing mark on the exhaust be so far off? If there is no actual timing mark on the exhaust cam assembly, how do I figure out how to adjust it?

Please help this noob make sense of this.

Edit: I’ve read dozens of posts on this topic, but they all seem to assume that the starting point is good timing and a stock setup. In this case I can only assume the previous mechanic ignored the timing marks on at least one of the cam wheels. Is the only way to do this to pull it all apart and use a camshaft locking tool on the rear to get it back in sync?

justcruising · Post by **justcruising** » 23 Sep 2021, 19:20

Here's a photo:

ignatz · Post by **ignatz** » 24 Sep 2021, 07:42

How does the car run? Does it misfire, stumble, or run great?

justcruising · Post by **justcruising** » 24 Sep 2021, 07:46

I think it’s running OK. I’ve only had it on a couple of very short test drives. There may be a little bit of stumbling under heavy load, but it’s idling well and seems to be doing just fine otherwise.

ignatz · Post by **ignatz** » 24 Sep 2021, 08:08

I started my mechanic career as a Porsche-Audi mechanic in 1973. The first thing we always did to a car that had a running complaint was to check the compression. If the compression is good, then you can move forward with the tune up.
Your car is not running right. Do a compression test to see if moving forward is a tune up or pulling the head.

Post by **vtl** » 24 Sep 2021, 10:44

As evident by the multiple bolt head's marks on both sprockets, the timing was reset multiple times. Probably due to mechanical problems with the engine, like clogged PCV, cam seals pushed out, dead VVT hub, etc. Don't trust the marks.

Instead, find someone with DiCE/VIDA and check the VVT angles. Oh, and read the Volvo-specific codes, not the generic ones.

If the detected angle is not too far away from 8 degrees, you can fix it in place by slackening the sprocket bolts and adjusting it. Anything below 8 degrees is compensated by the software, anything below 4 degrees is 100% achievable performance.

justcruising · Post by **justcruising** » 24 Sep 2021, 16:30

Thank you. First Volvo and I’m still learning. I’ve watched a bunch of videos and really combed through the forums here since I posted this. Starting to wrap my head around it. Before I buy a vida/dice scanner and camshaft locking tool I’ve decided to take it to a local Volvo shop have them scan it and give it a quick once over. I’ve identified a couple of other issues in the 48 hours I’ve had it, and it would probably be wise to have someone with more experience take a look at it. I’m still a bit perplexed as to why someone would time it but not use marks!