2006 V50 Non-Turbo "Diesel sound" Timing Belt?

[mc2prod]

Hi, First post here. I recently bought this wagon with engine in pieces as in the head off. I have put it back together and it starts right up. However the car sounds like a diesel and I am wondering if the timing is off one or two teeth. This is my first Ford VVT Volvo (I have repaired four 850's and two 960's; one of the 850's is a daily driver).

Most of the timing belt tutorials for this vehicle talk about replacement but not about how to put it together from scratch with only original guide marks from volvo (cams and crank gear markings).

So before we get into this. Things I've done:
1. googled (perhaps not well enough)
2. searched several volvo sites
3. pondered if buying this volvo was a good decision.
4. Checked Vadis repair process. (did not have anything specific about rotating vvt to create tension)

Specific volvo tools I have:
Cam locking tool
crank lock tool

Engine condition:
Completely rebuilt head including all new valves.
Bottem end compression is ok.

The actual question I have:
Do I need to rotate or tension the one intake VVT cam gear? I have read on one forum that one needs to rate the crank 1/4 counter-clockwise and then 1/4 turn back. This somehow does not make sense if I am using the cam locking tool and also the crank locking tool.

Any help would be appreciated. Thank you in advance. The car runs and drives but sounds like a diesel and not like the smooth volvo 5-cyl engine sound I am used to.

[mc2prod]

Since no one posted I will answer my own question. It seems I overlooked swapping out the oil filter. Since the car had not been driven in a year and the oil trap/pcv had been stored in a locked car in the heat, the oil filter dried with oil perhaps effectively lowering the oil pressure to the tappets when reinstalled. Swapped out with new oil filter and its sounds normal now.

I did double check the timing and confirmed that all marks were aligned and no skipped teeth. So if you car sounds like a diesel it could be many things: check the most accessible problem sources first to eliminate those and then work your way down the least accessible.