 AAR Question, How much Vacuum when closed? |
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| 74914LE |
 Mar 21 2014, 12:14 PM
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#1
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Member  Group: Members Posts: 136 Joined: 6-April 04 From: Fort Worth, TX Member No.: 1,895  |
I am working on reconditioning an AAR for DJet, and would like to see if anyone can clarify, when the unit is in the fully warmed condition and closed, how much vacuum should be getting past? In other words, how do I know if the reconditioning effort worked? Should one side hold a vacuum?
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Replies(1 - 5)
| Johny Blackstain |
Mar 21 2014, 12:21 PM
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#2
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Walnut Elite Stratocaster player Group: Members Posts: 3,434 Joined: 5-December 06 From: The Shenandoah River Member No.: 7,318 Region Association: MidAtlantic Region 
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When you pull the hose from the air filter to the AAR & cover it w/ your thumb, the idle should drop to normal. The AAR is supposed to work exactly the same way, so I guess the answer to your question is none (if the engine is already warm), like your thumb when it covers the hose.
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| boxsterfan |
Mar 21 2014, 12:23 PM
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#3
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
QUOTE(74914LE @ Mar 21 2014, 11:14 AM)  I am working on reconditioning an AAR for DJet, and would like to see if anyone can clarify, when the unit is in the fully warmed condition and closed, how much vacuum should be getting past? In other words, how do I know if the reconditioning effort worked? Should one side hold a vacuum? I don't own any vacuum tools, but with the AAR hooked up in the car and after warm-up, you should pull the hose on the side/port going to the air intake and see if it is sucking air in or not. Of course, it should not. Another more rudimentary test prior to install is to ground it, hook up 12 volts and wait a few minutes. The base of the pot should warm up and should not be able to suck air through the unit (this time trying to pull air from the other side/port). |
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| 74914LE |
Mar 21 2014, 12:33 PM
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#4
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Member Group: Members Posts: 136 Joined: 6-April 04 From: Fort Worth, TX Member No.: 1,895 |
Got it! Thanks for the quick reply!
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| TheCabinetmaker |
Mar 21 2014, 02:29 PM
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#5
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Just look thru the top hose port. If you can see the horizontal slot it's open. If you can't see it, it's closed.
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| Mblizzard |
Mar 21 2014, 04:41 PM
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#6
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
I not sure it is none. Maybe I always had bad ones but all of mine had some air flow even when warm and closed. (IMG:style_emoticons/default/popcorn[1].gif)
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