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Do the camposition sensor first with the cam seal. That is a rather easy job.
The PCV is a 5+ hour job. It took me over 8 to do it the first time, I ran into all sorts of minor glitches. The intake manifold has to come off to get to the oil separator box and various breather lines. Also a good time to replace the vacuum elbows that plug into the manifold which will need replacing soon anyway.
If you shop out this task, find a reputable indie Volvo shop. A regular repair shop will not know what they are doing and the dealers are expensive. Parts can be had from FCP Groton.
If you want to DIY, let me know and I will supply you with some detailed helpful hints to make it easier.
Klaus
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Volvoless. Its been 90 days. BUT I am getting a 1966 122 soon.
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