Turbo Esprit Fact Repository

User Tools

Site Tools

Trace:
engine:vacuumrouting

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
engine:vacuumrouting [2025/04/30 09:25]
217.113.194.169 old revision restored (2023/08/21 13:57) 		engine:vacuumrouting [2025/05/09 15:57] (current)
114.119.138.214 old revision restored (2025/01/24 07:08)
Line 5: Line 5:
 The US cars had air pumps equipped for emissions compliance. Most owners removed this system due to the fact that it would frequently break. The diverter valve and the associated plumbing is usually removed. Additionally, although the vacuum diagram seems to indicate that there is a line coming off the vacuum pump, this doesn't appear to be the case for many cars. The US cars had air pumps equipped for emissions compliance. Most owners removed this system due to the fact that it would frequently break. The diverter valve and the associated plumbing is usually removed. Additionally, although the vacuum diagram seems to indicate that there is a line coming off the vacuum pump, this doesn't appear to be the case for many cars.
  
-{{:engine:screen_shot_2021-12-22_at_6.42.00_pm.png?600|}} +{{:engine:screen_shot_2021-12-21_at_9.38.54_pm.png?600|}}
- +
-As explained below, the two red boxes are the vacuum solenoids for fuel pressure and ignition.  +
-When the solenoids are not energized: +
-  * Purple and Magenta lines are connected (ignition) +
-  * Blue and Cyan lines are connected (fuel pressure) +
- +
-When the solenoids are energized: +
-  * Purple and Yellow lines are connected (ignition) +
-  * Cyan and Green lines are connected (fuel pressure) +
- +
- +
  
 +As explained below, the two purple boxes are the vacuum solenoids for fuel pressure and ignition. When the solenoids are not energized, the yellow and green lines are connected (ignition), and the yellow and orange lines are connected (fuel). When the solenoids are energized the blue and green lines are connected (ignition) and the red and orange lines are connected (fuel).
 ==== Vacuum Solenoids ==== ==== Vacuum Solenoids ====
  
Line 30: Line 19:
 == Fuel Pressure == == Fuel Pressure ==
  
-Located beneath rear of plenum chamber. Function is to reduce fuel pressure on 'overun' and idle. A micro-switch, mounted on the front of the front carburettor, and operated by the throttle lever in its fully closed position, energises the fuel pressure solenoid. The signal to the fuel pressure regulator (normally connected to boost pressure in the plenum chamber) is then switched to No.1 cylinder inlet manifold depression, thus reducing 
-fuel pressure to the carburettors and mixture strength under closed throttle 'overun' conditions. 
  
 == Replacement == == Replacement ==
engine/vacuumrouting.1746005100.txt.gz · Last modified: 2025/04/30 09:25 by 217.113.194.169

Page Tools

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki