 Auxilary air regulator, proper operation |
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| rgalla9146 |
 Sep 23 2013, 08:31 PM
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#1
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Advanced Member  Group: Members Posts: 4,564 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None 
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Does the AAR on a 73 2.0 ever close completely ?
Does it operate on 12V only or does it rely on engine ambient temp to operate as well ? I have a high idle after adjusting timing ( with known factory timing marks ) and checking all areas for vacuum leaks. If I cap the AAR hose the idle is normal and there is adjustment left on the idle screw. The points plate moves freely with vacuum in both directions. TIA |
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| worn |
Sep 24 2013, 10:21 AM
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#2
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can't remember Group: Members Posts: 3,157 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(rgalla9146 @ Sep 23 2013, 06:31 PM)  Does the AAR on a 73 2.0 ever close completely ? Does it operate on 12V only or does it rely on engine ambient temp to operate as well ? I have a high idle after adjusting timing ( with known factory timing marks ) and checking all areas for vacuum leaks. If I cap the AAR hose the idle is normal and there is adjustment left on the idle screw. The points plate moves freely with vacuum in both directions. TIA That is a good test. After initial start there should be vacuum at the AAR, you should be able to watch this go away within 5 minutes. The manual has an actual spec time. If the car has been running for a half hour you should feel NO vacuum. Wire attached and 12 v with the ignition on? |
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| rgalla9146 |
Sep 24 2013, 04:24 PM
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#3
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Advanced Member Group: Members Posts: 4,564 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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QUOTE(worn @ Sep 24 2013, 09:21 AM) QUOTE(rgalla9146 @ Sep 23 2013, 06:31 PM) Does the AAR on a 73 2.0 ever close completely ? Does it operate on 12V only or does it rely on engine ambient temp to operate as well ? I have a high idle after adjusting timing ( with known factory timing marks ) and checking all areas for vacuum leaks. If I cap the AAR hose the idle is normal and there is adjustment left on the idle screw. The points plate moves freely with vacuum in both directions. TIA That is a good test. After initial start there should be vacuum at the AAR, you should be able to watch this go away within 5 minutes. The manual has an actual spec time. If the car has been running for a half hour you should feel NO vacuum. Wire attached and 12 v with the ignition on? I have two in the freezer now. May find others if I look hard. Earlier I had both attached to 12V for a half hour and both were as open as a whistle. They both got pretty warm ( 140 + - ) but I could not detect a restriction going on. Sooooo, clean and tap and clean and blow through and clean again and they come back ? My fingers are crossed. |
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Posts in this topic
rgalla9146 Auxilary air regulator Sep 23 2013, 08:31 PM
dangrouche
Does the AAR on a 73 2.0 ever close completely ?
... Sep 23 2013, 08:35 PM r_towle It's a coiled up spring.
Blast a can of pb bl... Sep 23 2013, 09:10 PM 76-914 Remove it and as Rich said PB it or WD40 it. Placi... Sep 24 2013, 09:08 AM Dave_Darling If that fails (hopefully it won't) after sever... Sep 24 2013, 09:57 PM
rgalla9146
If that fails (hopefully it won't) after seve... Sep 25 2013, 10:44 AM rgalla9146
If that fails (hopefully it won't) after sev... Sep 25 2013, 10:57 AM 9fourteen14
[quote name='rgalla9146' post='1931704' date='Sep... Aug 23 2016, 01:21 PM 442nd914s I found this awhile back. Maybe it might help some... Sep 25 2013, 12:23 PM rgalla9146
I found this awhile back. Maybe it might help som... Sep 25 2013, 09:28 PM Dave_Darling The cylinder with a slit in it is the "rotary... Sep 27 2013, 08:20 PM |
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