FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
|||
|
|||
RA Air Cleaner Vacuum Hose Routing
What is the correct vacuum hose routing configuration for the bottom of the RA Air Cleaner assembly. Any pics of correct routing would be great!
Thanks DV |
#2
|
||||
|
||||
To answer your question;
Add a second hose to the temperature sensor. T the hose with the second snorkel hose. Add a third hose from the T to the manifold vacuum source in front of the. carb The left snorkel (looking from the front under the hood) is normally open with the engine off and no vacuum. At idle and during cruise, vacuum closes the flapper valve. During low vacuum situations (acceleration) the valve opens allowing additional air to the carb. This vacuum motor requires a direct connection to manifold vacuum. The right snorkel is also normally open but only with the engine off. With the engine at idle or cruise, full manifold vacuum is applied to the temperature sensor. When carburetor air intake temperatures are below 105*, the sensor opens allowing vacuum to the vacuum motor, moving the snorkel flap to block under hood air and allow warm air from the exhaust manifold to enter the carb. When the intake air climbs above 105*, the snorkel flap gradually opens. During low vacuum situations (acceleration) with a cold engine, the valve opens allowing additional air to the carb. This vacuum motor requires a direct connection to the temperature sensor which requires manifold vacuum. To do this both vacuum circuits are T'd to a single manifold vacuum source. The vacuum motors above each snorkel are different and cannot be interchanged. To allow fully opened snorkel operation at all times, simply disconnect the vacuum lines and cap the manifold vacuum source
__________________
Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express 2024 Cadillac LYRIQ Last edited by OG68; 06-03-2024 at 02:23 PM. |
#3
|
|||
|
|||
OG68 - Thanks, your explanation of how it works is better than a picture!
DV |
The Following User Says Thank You to dv657172 For This Useful Post: | ||
#4
|
||||
|
||||
You are also missing one hose clip.
https://forums.maxperformanceinc.com...d.php?t=872998
__________________
So long, farewell. |
#5
|
|||
|
|||
Thanks HFR, especially for the link.
DV Last edited by dv657172; Yesterday at 06:24 AM. |
Reply |
|
|