The 65 Buick LaSabre has 5 engine choices all big V-8's and is a little smaller than a tank. You must know the engine type to buy parts. If it has a big 4 barrel carburtor the engine is either a 401 or 425 cubic inchs. If the car has a 2 barrel (small) carburator it is a 300 cubic inch V-8
All cars regardless of age must have three components for the engine to run.
The engine must have compression and in correct timing.
There must be fuel available at the intake manifold
There must be spark at the spark plugs to fire the fuel at the precise time the cylinder is in firing position.
The Buick in question is old simple techmology with a mechanical fuel pump mounted on the engine, a carburator to automize the fuel and provide it to the cylinders. An old point style distributer to provide spark to the spark plugs so the engine will run.
The first thing to check is fuel. Take off the air cleaner and operate the throttle while looking in the throat of the carburator. You should see a fine mist of gasoline squirt into the engine. If there is no fuel then the problem is in the fuel delivery which includes a fuel pump, gas tank and fuel lines.
If you have fuel go to the next step which is spark. Take a wire from spark plug. Put an insulated screwdrive in the wire end and hold it against metal. Have someone turn the engine over. If there is no spark, the problem is usually points and condenser which are located in the distributer.
If you have spark and fuel then the problem lies with the engine. It may have a defective timing gear and chain causing the timing to be off cycle.
If you can get it runing what you need is a mechanic with gray hair as I have that knows how to do an old fashioned tune up to includes, plugs, points, condenser, distributer cap and rotor and plug wires. At the time he should do a compression check to determine engine condition. This should cost about $150.00.
There are so many variables with a 41 year old car. It may have a rusty gas line that won't allow fuel flow or a bad fuel pump. The points may be bad or a cracked distributer cap, shorted rotor or bad coil wire.
Do as I asked and check for fuel and spark. Let me know when you have checked those two and I'll see if I can help further.
Sunday, April 2nd, 2006 AT 5:36 PM