Any Chokage Of Fuel Flow; Wet Steam; Dirty Generator; Brakes Dragging - White Motor Company White Steamer M Service Manual

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This will give the same result as a dirty vaporizer. By the term chokage is meant any obstruction in the feed

pipes or anything that prevents the fuel from flowing fast enough to take care of the water that is passing through the

flow motor. A common mistake is an insufficient opening of the hand valve at the seat or the shut-off valve at the

gasoline tank. These should be opened at least four turns.

As mentioned above, anything that will cause excessive water consumption will usually cause the same thing

for fuel. (See Wet Steam).

If the coils have a deposit of carbon on their inside surface, it will take a greater amount of fuel to supply the

same heat to the steam inside the coil, owing to the fact that the coil will not absorb the heat so readily. The carbon in-

side being a non-conductor of heat, consequently a portion of the heat is being wasted. Expressing it in another way,

the generator is being constantly "forced" to keep up a superheat.

This is one of the most common causes for a car using too much fuel. If the brakes drag it may not mean

much of a loss for one revolution of the rear wheel, or even a dozen revolutions, but in the course of a run of one

hundred and fifty miles an enormous amount of power will be wasted in pushing the dragging brakes. The rear wheels

should always spin fairly free.(See Chapter III).

If the fuel is too light it will give a very light, high fire and will not give as much heat as heavy fuel. In

extreme cases the flame of the fire may be above the lower coil. It will be found that the cheaper gasoline will give

much better results than the more expensive. The heavier the fuel, as a rule, the more heat units it contains per pound.

For that reason a great deal more mileage can be obtained from kerosene than gasoline.

These items are to express the general symptoms in order to get a line on something which may be referred

to the chart on regulation.

By this term is meant that the steam pressure rises above the bypass point to an excessive amount after the

throttle is closed, this amount varying from two hundred to five hundred pounds. There are two general causes for this

condition.

If the water is overbalancing the fire, the generator is carrying more water than it would under normal

condition. When the throttle is closed while the fire is on full, the residual gases in the vaporizer boost the steam

pressure very rapidly. (For remedy, see Wet Steam, Chart One.)

If the steam seems to be dry and hot, and the pressure drops back anywhere from one hundred pounds to

three hundred pounds when the throttle is opened suddenly, and then on closing the throttle the pressure springs back

anywhere to a thousand pounds, either the generator or the steam line has a clogged place which obstructs the flow of

steam to the engine. The steam pressure for the gauge is taken from the steam line near the throttle. If there is a

choked place in the line back of this the steam is taken thru the throttle faster than it can come thru the obstructed

place, consequently there is a drop in pressure at the throttle, which drop is registered by the steam gauge. When the

throttle is closed, the steam passing thru the clogged place balances up the pressure at the throttle or on the forward

side of the clogged place. This accounts for the steam gauge registering so high when the throttle is closed. It may be

seen that under this condition the steam gauge does not register the true boiler pressure with the throttle open any

amount. However, only when the throttle is closed is the true boiler pressure indicated. As the water regulator also

receives its pressure from the same source as the steam gauge, it may also be seen that the same is working under a

ANY CHOKAGE OF FUEL FLOW

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