the problem you might be trying to resolve could be due to an oil leak on the valve cover gasket, not due to a bad head gasket.
usually when the head gasket is burned or damaged, oil residues might be found in the cooling system, such as the water in the radiator, also you might experiment power loss and blue smoke coming out from the exhaust.
The spark plug gap for a 1990 Toyota Tercel 1.5 liter 1BL 4-cylinder is .044 in thousandths of an inch. The 1990 Tercel gets 30 mpg in the city, and 36 mpg on the highway.
Try google
The Spark Plug Gap.044 (In thousandths of an inch)
On my '91 it's below the thermostat.
Toyota tercel,canry timing markif it have a 2.0 engine sfe the timing mark is on the crankshaft balancer,which must be line up with the timing belt cover,timing mark.also the camshaft pulley there is a mark on it,that must be line up with with the mark on the back boardof the pulley.now you got it.most Toyota time the same way.
On the 1990 hatchback model, it is behind the right side panel under the hatch.
how the sequence of spark plugs goes on the engine of 1990 Toyota cressida
how to reset oil timing on 1990 toyota
It is usually located on the brake pedal itself approximately halfway up
My 1990 Toyota Celica Idle is too high... What seems to be the problem?
The engine oil capacity of a 1990 Toyota pickup is 5 quarts. This includes replacing the oil filter which stores a small amount of oil.
Might want to think about trading up... LOL!!! Just messin with you. But might want to get you pressure gauge checked...