 Replacing AAR, aka "cold start valve", discouraging options |
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| Prospectfarms |
  Jun 24 2011, 10:56 AM
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#1
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Member  Group: Members Posts: 495 Joined: 7-March 11 From: Louisville, KY Member No.: 12,801 Region Association: Upper MidWest  |
My AAR shorted-out melting the ignition harness. There is infinite continuity between the pos. terminal and ground. Air passes freely through the valve despite heating the housing to 160 degrees F. (IMG:style_emoticons/default/blink.gif)
My research indicates used OEM valves cost about $90. Typically these don't come with a guarantee. "Rebuilt" or NOS units cost about $200. "Cold start valves" of a similar configuration, e.g., VW, 944, Datsun, Mercedes, etc. begin at $140. Moreover, the off-brands on E-bay are pictured to be identical to the Bosch unit, and that gives me pause. (IMG:style_emoticons/default/huh.gif) Many members of this forum have friends with stashes of old parts to trade, I don't, and am relying on the market to source replacement parts. My car starts and runs without it andI don't want to spend $100, let alone $200 for this part; however, I recognize that the AAR vastly simplifies tuning and the general operation of the motor. (IMG:style_emoticons/default/idea.gif) Should I: 1. Attempt disassembly and repair of my AAR, per Anders, et al? 2. Purchase a used OEM valve without a warranty? 3. Try a non-stock unit? 4. Go without AAR (how to tune?) 5. None of the above? Maybe someone has an AAR for a 1.7 FI motor they would like to sell for less than $90? (IMG:style_emoticons/default/pray.gif) If so, please let me know that too. Or if that's bad forum etiquette,(IMG:style_emoticons/default/chair.gif) just tell me I should place a Wanted ad in the classified forum. |
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| Bleyseng |
Jun 24 2011, 11:10 PM
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#2
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
the cheapest is to just hold your foot on the gas til it warms up some....
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| Prospectfarms |
Jun 25 2011, 08:06 AM
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#3
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Member Group: Members Posts: 495 Joined: 7-March 11 From: Louisville, KY Member No.: 12,801 Region Association: Upper MidWest |
QUOTE(Bleyseng @ Jun 25 2011, 01:10 AM)  the cheapest is to just hold your foot on the gas til it warms up some.... I've been doing that for a couple of weeks now and I wonder if anyone adjusts their vacuum or A/R settings to account for no AAR? With leaking injectors and an MPS that won't hold vacuum, I guess it doesn't really matter how I tune the engine so long as it will start and run. I'd still like to know what others have done. |
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Posts in this topic
Prospectfarms Replacing AAR, aka "cold start valve" Jun 24 2011, 10:56 AM
Cap'n Krusty Do I detect a little confusion here? The AAR is N... Jun 24 2011, 02:10 PM
Prospectfarms
Do I detect a little confusion here? The AAR is ... Jun 24 2011, 10:02 PM Dave_Darling
Thanks Cap'n. That is gold because I love jun... Jun 24 2011, 11:40 PM Prospectfarms
In the Porsche world, MFI refers to the very ear... Jun 25 2011, 07:53 AM Tom_T Cap'n has given you some good tips, and I... Jun 24 2011, 02:46 PM Dave_Darling The AAR is bone-simple. Once you get into it (the... Jun 24 2011, 04:44 PM saigon71 I would post a WTB on this site. Mine was bad and... Jun 24 2011, 04:50 PM detoxcowboy
My AAR shorted-out melting the ignition harness. ... Jun 24 2011, 05:49 PM kg6dxn You can also call Rich at High Performance House i... Jun 24 2011, 07:16 PM Prospectfarms Now that Cap'n Krusty has expanded my horizon ... Jun 24 2011, 10:22 PM |
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