It is likely a TMD40 (Turbo Marine Diesel)
There are many Volvo certified mechanics on his way south. Campbell River will have at least one, as will Comox, Nanaimo, Vancouver. Just look for the Volvo Penta sign.
I use Inlet Marine, at Reed Point Marina, Port Moody. Tom grew up working on Volvos. So far I have found nothing to stump him. When I had TMD40s in my boat, he correctly diagnosed a couple of problems with just my inarticulate babbling over a poor cellphone connection.