A gas turbine engine oil flow control system can include a variable flow oil pump useful to provide oil at varying rates to a variety of oil consumers, such as, power gearboxes, engine shaft bearings, electrical generators, etc. Oil flow control valves that have an ability to provide a variable flow of oil can be used in conjunction with the variable flow oil pump. Flow sensors can be used along with an oil flow controller to measure a flow of oil at various points in the gas turbine engine oil flow control system. The oil flow controller can use information from the flow sensors along with a variable consumption demand association with one or more of the oil consumers (either provided to the oil controller or calculated based upon an operational need of the oil consumer) to change operation of the variable flow oil pump and/or oil flow control valve.

A saw guide for a saw arbor guide assembly comprises a head, a body, and one or more passages. The head has one or more intake channels adapted to supply lubricant to the saw guide. The body is connected to the head, with the body located between adjacent ones of the saw blades. The body has first and second faces, with the body further having a plurality of lubricant openings located on one or both of the first and second faces for supplying the lubricant to the saw blades. The passages extend through the head and the body and connect each of the intake channels with the lubricant openings, with the passages configured to carry lubricant from the one or more intake channels to the lubricant openings. For each of the lubricant openings, a flow control valve is located in the passage proximate to the lubricant opening to control a flow of lubricant through the lubricant opening. The flow control valves are configured to differentially control the flow of lubricant to the lubricant openings.