Matronics Email Lists

Thank you guys all so much for the help! Lots of options and great ideas here.

Yes, this is a Yak.

Brandon

Thank you very much!

Thank you very much!! I'll disassemble again and get to work rebuilding. I have the kits with the rubber washers, etc. already, so hopefully I can get them apart and installed.

Thanks again!

Thanks guys!

I have rebuild kits and filter for the T assembly. For the individual sides, do the check valves just screw apart? I disassembled the T the other day and tried to take one of the val ...

Hello Everyone!

In searching for an air leak and rebuilding a couple of things already, I found something I have a question about. Whenever I open the snot valve, air blows out. This is regardless ...

Well, I ordered and received the male to male fitting for the 6mm air line. Unfortunately the union fitting was too small in diameter. The one I have measures about 11.5mm on the threads, and the on ...

I'm not an expert, but there's a lot of oil to bring up to temp from those low temps. I don't have to deal with temps quite that low, but I bought an oil heater and a small bathroom heater to help. I ...

Hi Doug,

I sent you an email. How can order a couple of the HB4-4-4 parts from you? Wouldn't mind a price on the cap too.

Thank you,

Brandon

Dennis,I do stock a air line fitting which has ...

Thanks Dennis, I shot Doug a note.

Do you know where the differential valve is located? The line from the pressure reducing valve into the disabling valve is easy to see/replace, but the line on th ...

Sounds like the one I have. The headset works very well, but you definitely have to put a helmet and ear cups on over it in a Yak.

Clarity Aloft is one of the most returned headsets according to Ti ...

Yak 52

I took the bypass valve out. The bypass button/solenoid was disabled years ago, but evidently something inside has failed, allowing air to escape via the open port when the parking brake is ...

That is correct, it is just purging air out that open port.

Thanks for the valuable info Dennis, very much appreciated!

Doug, if it turns out to be something else I'll definitely purchase the re ...

Thanks Dennis. The disabling valve is already disabled from being active, so I'm guessing that may be why the port is unused (maybe not, I have no idea how it was disabled). It'd be nice if I could ju ...

I think my leaking part may be the brake disabling valve?? It looks like the figure in the lower right, has one line coming in, one line going out, and an open unused male fitting (where the leak ori ...

I know this isn't one of the sets mentioned, but I have a Bose port and use Bose sets in my Yak. I cut ANR off for takeoff and landing, but it is GREAT for everything else. Engine is a LOUD rumble tha ...

Thanks Dennis, so this is the reducing valve? You had said the reducing valve was in the upper right of your picture, and this is in the lower right, so just confirming before I buy a replacement (no ...

I got the floor panel off and the leak is coming from a port on the valve in the right bottom of Dennis' photo. There's a male threaded port on bottom that does not have an air line attached, and when ...

I figured they were. Smile

As always, thank you Dennis!!

My instructions were for a Yak 52.
Dennis

From: bmsim <bmsim>
To: yak-list@matronics.com
Sent: Monday, Janua ...

Thanks everyone for the replies, and that is indeed the area where my hissing is coming from. I'll check it out and get a rebuild kit!

FYI, this is for a YAK 52.

I had this exact same issue today when I put the parking brake on for preflight. Brake on, hiss under the rear floorboard, brake off, no hiss. I still have brakes on each side, it's just constantly bl ...