How is the timing marks suppose too line up on 1988 2.8 oldsmobile

SOURCE: 2.0 L Timing Belt Marks

hi if its a twin cam ford engine you wont find marks on the cam pulleys.what you have to do is take off the cam cover and look at the back of the cams you will see slots in them ,what you have to do is you can buy the timing kit for the engine at the main dealers or you can make you own using a flat piece of metal 5mm thick and100 mm long this fits into the two slots at the rear of the cams to lick them in place and th crankshaft pulley mark should be in line also.best of luck.

SOURCE: how to line crank and cam for timing belt on 1988 no crank marks

Hard to explain here... but I believe that car also has the balance shaft which needs to be timed as well. The camshaft has 2 lines which line up to the top of the head, and a "up" or "top" mark at the top.
Crank is set to 0 degrees.

SOURCE: need to know where the timing marks are on cam and

Finding the timing marks is simple, it is an impression (a small arrow) on both the crank and the cam. As for the exact time set, I would refer to the owner's manual but if you are doing it off the cuff pull the number one piston top dead center, line up the rotor button with the number one piston and set crank at top dead center and cam at bottom dead center. This will be a good starting point, but the owner's manual will give you more exact instructions.