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> d-jet a.a.r. question, 8/18/ AAR open vs closed - effect on setting timing-advance
DRPHIL914
post Aug 10 2011, 08:50 PM
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I e tested 4 now and after 10 min none of them close completely or at all. Either way could it be because of a bad connection? Not hot enough? I know atleast one, the newest one was tested as good and is very clean. I know they can go bad inside but I do not think they all are.
But after 10 min of car at idle its still pulling air thru, suggestions please.

Phil
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r_towle
post Aug 11 2011, 07:42 AM
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They get pretty warm, and the heat from the case adds to that heat to close it off all the way.

Most I have seen are just full of junk that gets in the way of the spring closing...
Even a little chunk of junk will stop the spring from coiling up all the way...so the AAR will stay open a crack.

Rich
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DRPHIL914
post Aug 11 2011, 08:21 AM
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QUOTE(r_towle @ Aug 11 2011, 09:42 AM) *

They get pretty warm, and the heat from the case adds to that heat to close it off all the way.

Most I have seen are just full of junk that gets in the way of the spring closing...
Even a little chunk of junk will stop the spring from coiling up all the way...so the AAR will stay open a crack.

Rich


I m going to bench test them tonight, see if the warm up and close up- but from what i am reading here and on the ander's site i think he says 10-15minute it can take to close up, i have not run the car long enough, but i will also test the 12v going to the unit from the harness and the fuses as well, and will report back.
Anders also discribes being able to change resistance to change the time it takes to warm up and close, i'm not going to mess with that but if the 12v is there ,on this new one it may be that it sat in a box for 21_+ years on the shelf, and the soaking in penetrating oil might do the job to loosen it up.

Phil
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Philip W.   d-jet a.a.r. question   Aug 10 2011, 08:50 PM
ConeDodger   Yes, heat. I assume from the 12 volt source coming...   Aug 10 2011, 08:55 PM
Valy   is that the l-jet or the d-jet aar? I know the l-j...   Aug 10 2011, 09:07 PM
ConeDodger   Here is a link to Brad Anders DJet site. It outlin...   Aug 10 2011, 09:09 PM
Tom   The AAR for D-jet needs two things to work on the ...   Aug 10 2011, 09:39 PM
McMark   The AAR uses a bimetallic strip to rotate a step-c...   Aug 10 2011, 10:45 PM
cary   As long as we're on the subject. I've had ...   Aug 11 2011, 07:39 AM
r_towle   They get pretty warm, and the heat from the case a...   Aug 11 2011, 07:42 AM
Philip W.   They get pretty warm, and the heat from the case ...   Aug 11 2011, 08:21 AM
Tom   The AAR typically draws about 1 to 1.5 amps. They...   Aug 11 2011, 08:33 AM
underthetire   The AAR typically draws about 1 to 1.5 amps. The...   Aug 11 2011, 09:08 AM
euro911   I just refurbished a couple of them recently. They...   Aug 11 2011, 08:35 PM
Philip W.   I just refurbished a couple of them recently. The...   Aug 13 2011, 03:05 PM
swl   The AAR is on the small FI harness - connected to ...   Aug 13 2011, 04:20 PM
Philip W.   The AAR is on the small FI harness - connected to...   Aug 13 2011, 05:35 PM
Tom   Voltage is only at the AAR when the fuel pump is r...   Aug 13 2011, 06:17 PM
swl   You can check it with an ohm meter with power off....   Aug 13 2011, 07:33 PM
euro911   I tested the electrical function using a VOM to de...   Aug 14 2011, 12:00 PM
Philip W.   OK. so ran the car for 10 minutes- yes we are on t...   Aug 17 2011, 10:59 AM
ConeDodger   OK. so ran the car for 10 minutes- yes we are on ...   Aug 17 2011, 11:18 AM
Tom   Take the AAR hose that goes to the air cleaner off...   Aug 17 2011, 11:36 AM
scott_in_nh   Take the AAR hose that goes to the air cleaner of...   Aug 17 2011, 11:43 AM
Philip W.   Take the AAR hose that goes to the air cleaner o...   Aug 17 2011, 02:12 PM
scott_in_nh   good question- i got the current MPS in a parts b...   Aug 17 2011, 02:23 PM
Philip W.   good question- i got the current MPS in a parts ...   Aug 17 2011, 07:43 PM
Philip W.   I had a thought on this, wondering if this makes s...   Aug 18 2011, 06:13 AM
scott_in_nh   I had a thought on this, wondering if this makes ...   Aug 18 2011, 06:24 AM
Philip W.   I had a thought on this, wondering if this makes...   Aug 18 2011, 07:08 AM
scott_in_nh   Scott, i was playing around with that last night...   Aug 18 2011, 08:34 AM
Philip W.   Scott, i was playing around with that last nigh...   Aug 20 2011, 03:08 PM


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