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Posts: 306
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Aux Air Regulator resistance reading?
What should be the resistance reading on the cis aux air regulator
With the unit cold and unplugged I'm getting 17.5 ohms. Any idea on what the spec should be? Thanx L |
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Fleabit peanut monkey
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boyt911SC knows. What year?
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1981 911SC Targa |
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I am not sure of the proper spec on an AAR but I just measured my spare that I tested and I know works. It's out of an 83 sc. It measured 17.4 ohms.
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Lou |
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Auxiliary air regulator........
Quote:
Could you post the # on the AAR? It should read like this: 0-280-140-xxx. The last 3 digits will identify it from other AAR's. Do you have a -206, -209, or -219? Keep us posted. Tony |
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Aar-218........
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ROW '78 911 Targa
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My 201 AAR is 34 ohms as well.
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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Another AAR........
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ROW '78 911 Targa
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Interesting, both of my AAR's are 201's, one that came with the car and one from a large port intake system I bought for parts.
Maybe I should throw a 209 on my car to see if there is a difference.
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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Hi Tony,
The AAR number is 0 208 140 209 Like I said, I applied 12V to it on the bench and watched it close completely. I was told it is out of an 80 sc.
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Lou |
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AAR spec........
The the average resistances (Ohms) measured were:
A A R............. Ohms 101................31 - 32 200................21 - 22 201................33 - 34 204................21 - 22 206................17 - 18 209.................17 - 18 218.................33 - 34 219.................17 - 18 The difference in heating resistance (Ohms) correlates to the time the valve closes during warm up phase. Higher resistance takes longer to close. So getting your CIS engine to run well means using the correct components and understand what you are doing. A very good example is what an active member been doing with his 'customized CIS' engine using WUR, FD, etc. from different year/models and expect to optimize its performance. Unfortunately, the time and effort spent could have been minimal using the correct components. It has been going on for at least several months and counting. Sometimes you get lucky. But you can not rely on luck all time for troubleshooting your problem/s. It is not how hard you work but how smart you do it. Tony |
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Good stuff Tony.
I had no idea an 80 AAR was different than an 83 AAR. Looks like I bought the wrong type for my spare.
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Lou |
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Well apparently I have the wrong aux air regulator on my 1976/77 911. My unit is 0 280 140 206. The resistance is 17.5 ohms.
Do I have the correct Fuel distributor and warm-up regulator for a 76-77 911? My Fuel distributor is a 0 438 100 006 The warm up regulator is 0 438 140 033 Thanks for all the help with this. L |
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Join Date: Sep 2005
Location: Yuma Az.
Posts: 282
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Ferrari 400 - Bosch Downloads
Go here and open the Bosch Components Application tab. Scroll down to the Porsche section and find your vehicle, I would say you have a 2.7 911 S not a euro 3 liter and all the components are their by part number So for a 2.7 S the FD should be a 006 the WUR a 009 or a 033 and the aux air reg a 200 or 201 Note the 201 Aux air reg crosses over to Volvo I just bought 2 new in the box from a Volvo dealer in Oak Park Il. for $142.00 each, took about 2 weeks to get but that was the price, a lot better then the 700 plus that Porsche wants There are a few 201s on ebay now if I recall at a good price as well, Just have to stay away from the Porsche name and the price comes waaaayyy down. Wealth of Bosch info on this site, good one to book mark for our old CIS cars. |
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Location: Yuma Az.
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Volvo Parts - Authentic OEM Volvo Parts direct from Volvo Parts Webstore | VolvoPartsWebstore.com
Bought from these guys if you need a 201 aux air reg to match up all your components |
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Thanx for all this helpful info. I'll look into it. L
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Ok I have the correct aux air regulator now. It's a 0 280 140 200.
It also checks out with the proper ohms resistance at 21.5 ohms Next question. I put 12 volts to the plug and over about a 3 minute period and the small round internal door closed but there is a small square cut out on the side of the internal door that did not close. Air can still be blown through the unit but not as freely. Shouldn't these close off the air supply completely when heated? L |
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Mine doesn't appear to close completely.. It closes over a period of a few minutes with 12 VDC applied. There is a "V" shaped cutout that is still visible when the AAR is warmed up.
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AAR test........
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LCOX, Place the AAR in an over at 170°F-180°F for 5 to 10 mins. (max) and inspect if the slot opening did close. I'll test my AAR-200 and post the result. Three (3) to 4 mins. is the typical closing time for these AAR's. Tony |
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Test result.........
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LCOX, Did a quick oven test for AAR @ 170°F for 10 mins. while wifey was busy decorating the X'mas tree. The slide valve closed but the small square slot was still visible. So we have the same result like others. HTH. Tony |
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ROW '78 911 Targa
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911 07.77 - 07.83 930.xx
6 cyl. 3.0L K-Jetronic Injector Valve 0 437 502 004 Fuel Pump 0 580 254 984 > 7/79 0 580 254 053 8/79 > Air Flow/Mass Sensor 0 438 120 070 > 6/80 0 438 120 149 7/80 > Fuel Filter F5021 > 8/80 Fuel Filter F5907 9/80 > Fuel Distributor 0 438 100 031 > 6/80 0 438 100 097 7/80 > Cold Start Valve 0 280 170 409 Fuel Accumulator 0 438 170 009 > 6/79 0 438 170 031 7/79 > Warm Up Regulator 0 438 140 045 > 1/80 0 438 140 089 2/80 > Auxiliary Air Valve 0 280 140 201 Hmmm, looks like the 201 AAR is correct for my '78 from the info Tony directed me to...
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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