There's something comforting...
There's something comforting about seeing oil pressure on the gauge, even before the engine starts. A pre-lube system is a simple addition that provides peace of mind.
It has long been said that a substantial portion of engine wear occurs at start-up due to a lack of initial lubrication. Much of the oil simply drains out of critical areas, and it's not replaced until the engine spins and the oil pump can build up pressure to replace what was lost. If you've ever noticed how long it takes for the oil pressure warning light to go out, or the gauge to show signs of life, that's how long those parts went without being bathed in fresh lubricant. And, if the oil drains off of the parts in an engine that is fired up and used every day, imagine what's happening inside a street rod's engine that may not be used as often.
The truth is there are other things that create lubrication problems when an engine first starts-oil viscosity is one. While some say heavier oil doesn't drain away as readily, it also takes longer to initially pump through the engine-thinner oil will often build pressure faster than thicker oil. Another factor is the acids that are byproducts of combustion that condense and accumulate inside the engine; they can corrode and etch away even the hardest surfaces. Of course, there are solutions for most problems, and there are a number of things that can be done to help protect an engine at start-up. Using quality oil and changing it regularly has obvious benefits. And, while most new-car owners' manuals advise against long warm-up periods, letting an engine idle for 15 or 20 seconds before putting it under a load will help ensure that everything is washed down with oil and lubricated. But, one of the best ways to protect an engine at start-up is to use a pre-lube system that builds up oil pressure before the starter begins to spin.
We installed an AMS-Oiler...
We installed an AMS-Oiler (Model AMK-02) on our Flathead-powered Model A. The compact AMSOIL unit is 4 inches wide and 8 inches long, and it can be located as much as to 6 feet away from the engine using the provided 1/4-inch, 500-psi hose; we chose to mount ours on the firewall.
Pre-lube systems have been around for quite a while and range from simple to elaborate. Some use an electric motor and an auxiliary pump; others are accumulators that capture oil under pressure and then release it before the engine starts or, in some racing applications, if the oil pressure drops below a preset point. Prices range from as little as $200 to as much as $500.
Recently, AMSOIL introduced a pair of pre-lubers called AMS-Oilers. The Model AMK-01 is designed to be mounted directly to AMSOIL Dual Remote Filtration System models-BMK13, BMK15, BMK16, and BMK17-as well as the AMSOIL Marine Dual Remote Filtration System, BMK18. The AMK-01 kit includes all the necessary fittings and hardware for installation while utilizing the existing hoses of the dual-remote filtration system.
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AMSOIL's kit came with everything...
AMSOIL's kit came with everything necessary for installation- fittings, hose, and fasteners-plus clear, concise instructions. It can be installed and operated at any angle.
The AMK-02 is a standalone unit that can be adapted to virtually any engine, and we chose to install it on our Flathead Ford. The AMS-Oiler is charged under pressure directly from the oil pump output during normal engine operation; when the ignition is shut off, a valve on the reservoir closes and holds the oil under pressure. The next time the ignition switch is turned to the on position, the valve opens and the engine's oil system is primed. In the case of our Flathead, the oil pressure gauge reads 25 psi in about two seconds, which is about the time it takes to flip on the ignition switch and hit the starter button. Included in the kit is an audible 95dB signal that sounds for two seconds as the 12-volt DC valve opens and the engine's oil system is being pressurized. The signal stops when the oil delivery process is complete, indicating the engine is ready to start; we elected not to use the optional signal.

Although the AMS-Oiler only...

Although the AMS-Oiler only holds 5.4 ounces of oil, that's plenty to pressurize the engine's lubrication system, even after an oil and filter change.

Wiring is simple enough-connect...

Wiring is simple enough-connect one wire to the ignition switch and the rest is plug and play. Connectors are weatherproof, and an optional buzzer provides a quick reminder to the driver that the engine is being pressurized.

Plumbing the AMS-Oiler is...

Plumbing the AMS-Oiler is simply a matter of T-ing into the engine's oil pressure line. In our case, the braided line connects to the oil pressure port in the block and delivers oil to and from the accumulator.

We installed a T-fitting in...

We installed a T-fitting in the line at the AMS-Oiler to supply the oil pressure gauge. Our vintage gauge uses an unusually large 1/4-inch supply line with an SAE 45-degree fitting, so we made a copper line with a flare at the instrument end and an AN at the other.

We installed an AMS-Oiler...

We installed an AMS-Oiler (Model AMK-02) on our Flathead-powered Model A. The compact AMSOIL unit is 4 inches wide and 8 inches long, and it can be located as much as to 6 feet away from the engine using the provided 1/4-inch, 500-psi hose; we chose to mount ours on the firewall.