The spark plug gap for a 1987 Toyota pickup with a turbo engine should be set between .035 inches and .044 inches. A new spark plug will come with the gap already set and should not need to be adjusted.
A 1996 Toyota Camry that will have spark and then sometimes no spark might be having a problem with the spark plugs. Each individual spark plug is now a solid state electrode in that year of Toyota Camry. The ignition coil pack on top of the spark plug is probably loose or cracked.
PARK PLUG GAP 1999 Nissan/Datsun Truck Frontier Pickup 2WD 2.4L SFI 4cyl The Spark Plug Gap .044 (In thousandths of an inch) SPARK PLUG GAP 1999 Nissan/Datsun Truck Frontier Pickup 2WD 3.3L SFI 6cyl The Spark Plug Gap .044 (In thousandths of an inch)