Where is the tube located on the outdrive of motor that makes the speedometer work.?

Question

Where is the tube located on the outdrive of motor that makes the speedometer work.?

Answer 1

In older cars a mechanical cable runs to the output shaft of the transmission and uses a gear set to transmit the speed to the speedometer through the cable. Newer cars use electronic pick-ups or signals from the computer to obtain a speed reference and then the speedometer interprets that into speed. If you have a rear wheel drive car, look at the back of the transmission for the cable or electronic speed sensor. Front drive cars are harder to find the speedometer sensor or cable.

Answer 2

It is connected to the speedometer and the pressure in the tube when moving makes the guage increase>It's location is in the front coming out of the gear case>

Answer 3

By outdrive, I take it you mean "outdrive" as in inboard/outboard boat.   In that case the speedometer is not driven by anything from the motor,  but is just a hollow (pitot) tube which usually hangs froma plastic holder at the transom and just pokes below the waterline.  Water rushing by lowers the airpressure in the tube and that causes the mechanical speedometer to register the speed.   There is a cable from the outdrive to the tachometer, if one is installed,  but that registers motor RPM, not speed.

Answer 4

On Mercury, there is a 1/8" tube that runs up the front side of the gearcase.  It has a union where the gearcase splits.

Answer 5

and your talking about your car right?