spark lead

spark lead

[′spärk ‚lēd]
(mechanical engineering)
The amount by which the spark precedes the arrival of the piston at its top (compression) dead-center position in the cylinder of an internal combustion engine.
References in periodicals archive ?
However, the benefit of being drawn inside Derek Knight's odds-on favourite can see Jack Spark lead early, and he rates a reasonable bet at 11-4 with Betfred, Totesport and VC bet.
By adding a dose of supernatural sci fi, The Terminals Episode 1: Spark leads thriller readers on quite a different journey: one with no prior guideposts and no predictable paths.
Is it locking up our public forests and turning them into overgrown tinder boxes, just waiting for the day that a single spark leads to the complete destruction of hundreds of thousands of acres and wildlife habitat, while also severely damaging air and water quality?
HAVEADRINKON THIS ONE: Golden Chalice has a great chance of landing the Victoria Cup at Ascot today; PLUG FOR SPARK: Indian Spark leads themhome at Haydock in 2000