Re: Engine Prelubers....
 

It shouldn't, seems like the masterlube is the same system as the Accusump. With the accusump, when you are doing an oil change, you turn on the key and it allows the oil to pump out of the Unit. At that time you check to make sure that there is 5-7psi still showing on the gauge, (this pressure keeps the diaphragm seated). If it's lower you set it back using the schrader valve. This is the only time it needs checking. I have not had to adjust mine in a year.

Materlube and Accusump are pressure accumulator units as opposed to a gear driven pre-luber. The gear driven prelubers are only used prior to start-up and for oil changes. The accumulators are used for start up, but also allow you to run a lower oil level as they will top up the system any time their stored pressure is higher than the engine pressure, this function is great for racing applications as it negates oil surge issues. The other plus with accumulators is that you are basically carrying two quarts in reserve.