The fuses for a 1988 are inside driver side on the left hand side down below (where the hood release is)
on the 1988 Vovlo 240, the fuel filter is loca
YES
Under Dash Passenger side to the right of the kick panel
at a junkyard
Yes I believe actually the 1986 to 1992 Volvo 240 4 doors are all interchangeable parts but I'm not sure for 1985 and earlier models.
ebay, salvage yards, craigslist, local used foreign/volvo shops
Inside the reservoir.
There isn't one. you have to use a key.
bearing
It is located under the drivers side rear door.
under the dash, driver side
The VR is on the back of the alternator.