You should be able to find a shop manual at your local library with the right info...make copies as they are usually only in the REFERENCE section....good luck:)
5.0L 307
The 1984 Oldsmobile Delta 88 typically came with a 5.0-liter (307 cubic inch) V8 engine as standard, while an optional 5.7-liter (350 cubic inch) V8 engine was also available. These engines were part of Oldsmobile's line of durable and reliable powertrains from that era.
Not unless someone installed it. The small V8 in a 1984 Olds Delta 88 was the 307 V8.
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Hemmings Motor News.com
Behind the drivers seat, under the vehicle.
The power steering belt size for a 1984 Oldsmobile Delta 88 Royale is typically a 3/8 inch by 61 inches. However, it's always best to verify with a service manual or an auto parts store for the exact specifications, as variations may occur depending on the specific engine or options installed in the vehicle.
Timing gun
No it doesn't.
To replace the alternator belt on a 1984 Oldsmobile Delta 88 Royale, first, ensure the engine is off and cool. Locate the alternator and loosen the mounting bolts to create slack in the belt. Remove the old belt by sliding it off the pulleys, then install the new belt by threading it around the pulleys according to the routing diagram (usually found under the hood). Finally, adjust the alternator to tension the belt, tighten the mounting bolts, and double-check the belt's alignment before starting the engine.
yes they had a diesel engine but only for 2 years 1984-1986 and the engine was made by Oldsmobile
that would be 5.7 Liter