Anyone have any experience with this replacement D-jet Auxiliary Air Valve element? This guy has sold a lot of them on ebay. It'd be nice to hear from someone who's tried it.

http://aavpart.com/

I tried one. The instructions are, basically, heat the flange with a torch until you can pull the old element out. Mine needed to be heated with a propane torch much longer than I would have thought. Eventually I got out the old element. There was a bunch of crud between the old element and the valve slide, and the valve slide needed to be un-stuck as well, requiring more work with the torch. Eventually I had the whole thing dissembled.

The element was then glued into a flat cylindrical housing with high-temp sealant (the ring you can see at the base of the assembly), and then this was glued into the flange with Loctite 638. This reassembly went pretty smoothly.

On installing the renewed AAV into my car, I noticed the engine idled very high when started the engine. I checked the specs, and according to the service manual, the AAV valve should be fully open at -25C and fully closed at 60C. The seller's eBay listing said his would be fully closed at 55C. When I sent him a message to say that my AAV valve probably shouldn't be fully open at room temperature, he said that his elements were designed to be fully open at +25C and closed at 55C.

Now, this is my first time installing a new AAV valve in a B20F, so maybe I did something wrong when I readjusted my idle speed, but it seems like the elements he's selling don't really match with the specifications of the ones that were originally made for the B20F.

On top of that, it looks like you can get the same thing (marked as -30 degrees) on Amazon for $21 bucks -

https://smile.amazon.com/MAHLE-ORIGINAL-TX10330-Thermostat-Insert/dp/B00DQ8NAWS/ref=sr_1_fkmr0_1?ie=UTF8&qid=1550185086&sr=8-1-fkmr0&keywords=Mahle+Behr+0012039575

I ordered one of the Amazon ones, I'll see how it goes!

One more thing - it looks like the gasket for the AAV can be found if you search for Felpro Part # 35595

https://www.autozone.com/cooling-heating-and-climate-control/thermostat-gasket/fel-pro-thermostat-gasket/157140_13975_0?fromString=search&make=&model=&year=

Oops - scratch that above message. It's not the right gasket - I thought I was on a roll.

Hello Fran,

Don't worry, "pobodys nefect"!!

The gaskets are a lot cheaper from the aftermarket and I have plenty in stock if needed.

Here are the M/B and Volvo part numbers for the AAV mounting gaskets.

M/B 114 203 00 80 64
Volvo 419894
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502

Also, depending on how much corrosion is on your AAV, the trick to disassembly seems to be to heat up the flange with a propane torch for about 3-5 minutes until you hear a popping or pinging noise - this might be the wax in the bulb boiling off or it might be the bulb-holder working free. Then cool off the brass bulb and the aluminum bulb holder that surrounds it with an ice cube. Be careful, if it's not too corroded the whole assembly might pop out on its own since it has a spring behind it!

I've taken apart three of these so far, and the less corrosion the easier it'll be. Also, if you're really digging into either part with your vise grips, you haven't used enough heat.

I haven't tried it but it sure looks interesting. Did you notice their web site says it's for Bosch mechanical injection?
--
Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)

I have been watching these on ebay for about 6 months and I am very tempted to buy some.

I tried to contact the seller to ask to see the installation instructions and I never got a response.

--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com