Matronics Email Lists

Thanks Walt. Yep I've had these issues with a plane in the past that used automotive master cylinder and aeromotive brakes. Had to swap out the rubbers.

Luckily most O Rings these days are Nitrile. ...

Thanks Richard ✔️

Hey there, did you get to the bottom of your brake issues?
I have a soft pedal on my 55m and have pulled the master cylinder.
Need some rubber parts, do you know of anything available ?
Cheers Stev ...

Hello all. Just disassembled one brake master cylinder on my YAK55m.
Need a few rubber parts to make it work again.
Anyone know if there's anything available for these things ?

Hey all.
My 55m keeps getting a soft brake pedal on one side.
Airs getting into the fluid , but we can't see a reason why. Any ideas ? Steve.

It will depend where you live and who writes the rules and regulations.
Here in New Zealand they require the bottle is removed and pressure tested every 5 years and borescope inspected every year or ...

Can anyone help with front prop shaft seal on my M14p please.

During gyroscopic maneuvers my YAK55m is spewing oil everywhere.
We have replaced pretty much every O ring and gasket on the engine, ...

Thanks guys, I take it these are operating shear loads on the bolts and they need to be at least 50% more than that.
Also, seems strange the fitting go oval and the bolts don't wear.
It is what it i ...

Hello all my 1992 YAK55m has 440 hours on it and is showing signs of play in both the front and rear wing attachments.
Has anyone done a replacement of wing bolts?
We're thinking if we reamed the ho ...

Hey up. I'm looking to ream out and replace the wing attachment bolts on my Yak55m with some oversized bolts +0.5mm. I must be a bit hard on the old dear as she's developed a bit of play on both side ...

Hi everyone. This is a very important topic, and deserves as much discussion as possible.
My Yak55m doesn't appear to auto rotate and will stop any type of spin with opposite rudder and central/forwa ...

Anything for Yak55 ?
Steve.

Hello. Does anyone have a set of engine mount rubbers available for my Yak55m please n thank you. I'll need a price delivered to New Zealand please.
Thanks Steve. Very Happy

One ends in an A, the other a T.
Rolling Eyes

Hey Peter, I'm operating a Yak55m. Was just wondering how you are finding the SU29. I just love my 55m, but never flown a SU. why did you choose a 29?
Cheers Steve.

Quick question , seeing as I'm using the whirlwind W530 2.5 meter blades on my Yak55m.
Is there any recorded height for Yak55's. where do we measure? How do we know how much if any our undercarriage ...

Excellent. Humor is a very important part of life.

I shall forthwith inspect all my rubbers for wear after each use.
I hereby understand that if they be black, cracked and wrinkled, then they for ...

Try Norm Davis.
davisn@xtra.co.nz
He has contacts with a Yak 52 syndicate in Ashburton and has contacts in Wanaka.
Smile

Steve.

Thanks Mark. Yeah the front shaft seal is leaking a bit. A lot if I do a prolonged flat spin.
A couple of people have mentioned worn engine mount rubber as a possible cause for harmonic vibration. I ...

Thank you Richard, thats a bit more reassuring.
I've still had my chut repacked tho. Smile

My 55m will have 400hrs by the end of this year, so we're gona take the wings off and check the attachments, ...