Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Last revision Both sides next revision | ||
techtalk:ref:engmech07b [2020/10/02 07:40] hippysmack |
techtalk:ref:engmech07b [2020/10/02 07:45] hippysmack [Affects of the 45° Rod / Piston Arrangement] |
||
---|---|---|---|
Line 15: | Line 15: | ||
Intake vacuum is relative to piston / rod positions. \\ | Intake vacuum is relative to piston / rod positions. \\ | ||
- | On carbed models with VOES: \\ | + | An example with on carbed models with VOES / MAP: (although this is the same for all Sportsters) \\ |
- | Vacuum is created in the cylinders which pulls air (vacuum) from the carb. \\ | + | Vacuum is created in the cylinders which pulls vacuum from the carb. \\ |
- | This vacuum is tapped into and used to operate ignition timing through the VOES. \\ | + | This vacuum is tapped into and used to operate ignition timing through the VOES / Map. \\ |
So a vacuum gauge plugged into the vacuum line at the carb does reflect the position of the two pistons. \\ | So a vacuum gauge plugged into the vacuum line at the carb does reflect the position of the two pistons. \\ | ||
I.E. the gauge moves when the pistons are on the way down and goes toward the resting position when the pistons are coming up. \\ | I.E. the gauge moves when the pistons are on the way down and goes toward the resting position when the pistons are coming up. \\ |