Oil filters/drainback
In 5/90 I was told that in South Florida they had experienced flow/filtration problems with Ufi and Baldwin filters, and that the Fram 2804-1 was recommended. I had been using Baldwin filters and switched. I've always had a concern for dry start-ups, and in 2/93 installed a Mecca 2429 check valve in the line that goes from the block to the oil filter base. This line also includes aftermarket front-mounted and OE oil coolers. Prior to installing, this valve was subjected to a month's testing using a variety of low viscosity fluids, including 3-In-1 oil, gasoline, and Mobil 1 15W-50. Zero leakage. The valve, which requires only the slightest pressure to open was also satisfactorily pre-tested for flow. I've checked the oil pressure light with a stopwatch several times in a variety of temperatures and consistently found it to go out in about 1.5 seconds, with the gauge needle moving instantly thereafter. The only drawback is the valve's weight, and that was mitigated by placing it closest to the block fitting, and wrapin it in a layer of neopreme held in place with zipties.