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Old 06-21-2003, 10:53 PM
ted ted is offline
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Join Date: Apr 2003
Location: Central Texas, TX
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Default System One oil filters

In the event you use a System One filter and trash the motor, be absolutely sure that the filter is clean of all the debris. I was involved with an early System One that was the non-pleated design where the babbitt had melted into the pores of the screen and was virtually invisible. Needless to say the new engine replacing the blowed up one ran fine until oil flow at high rpm was restricted and spun a main bearing. The problem was found only by putting the screen up to the sun and realizing the blockage.

The newer pleated designs would be even more difficult to clean as the minutest of materials can get caught in the screen pores.

Although they're more difficult to plumb than just using a System One in place of the filter, I've been using the Oberg style of filters for two decades now. The Oberg style of filters do have a contact switch on the bypass valve to let you know when the filter is picking up trash. This allows for an early shutdown long before a total engine catastrophe takes place. The Oberg uses a flat disk shaped screen that makes observation of any foreign material very easy to identify. I've been happy with the 60 micron screens but screens of varying sizes are available.
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Ted Eaton.
Fe's are fast but "Y-Blocks" are fun when they run in the 9.60's at 135 mph.
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