Baby Stinson 10A Lo...
 
Share:
Notifications
Clear all

Baby Stinson 10A Looking for master cylinder parts  

  RSS

Daniel Blystone
Active Member
Joined: 1 year ago
Posts: 6
04/08/2020 12:39 am  

Hello Again looking for some additional info.  Same baby Stinson now I'm

looking for those several parts of the master cylinder.  Working on the

master cylinder missing one of the inside metal section and rubber

plunger part.  Any idea where I can get those several parts.  (Forward side of the

master cylinder.)  Thanks

This topic was modified 3 months ago by Daniel Blystone

Quote
Michael Samson
Estimable Member
Joined: 1 year ago
Posts: 133
08/08/2020 2:33 pm  

It's not good news. They used automotive master cylinder parts back then. You used to be able to buy automotive ovhl kits but they have pretty much stopped selling them. If you find someplace that still sells kits you will need to go thru many to find the correct parts for your cylinders.

 Another option would be brake master cylinders from a  low wing Piper or similar


ReplyQuote
Daniel Blystone
Active Member
Joined: 1 year ago
Posts: 6
09/08/2020 12:34 pm  

@ecos36gmail-com

thanks for your quick advice 


ReplyQuote
Dennis Crenshaw
Estimable Member
Joined: 15 years ago
Posts: 222
11/08/2020 1:38 pm  

@dblystone  My Dad had told me that the master cylinders were from a '39 Dodge.  The system used automotive brake fluid instead of mil-spec 5606 hydraulic fluid.  The old Hayes master cylinders and wheels and brakes were a constant source of aggravation.  The expander tubes on the wheels had long since lost their elasticity and the brake blocks would constantly drag. The master cylinder bores were pitted so I frequently would get a soft pedal(our ownership was a long time ago--1953 - 1973).  I would install a Cleveland master cylinder with Cleveland wheels/brakes.  Others have done it with 337's.  


ReplyQuote
Daniel Blystone
Active Member
Joined: 1 year ago
Posts: 6
11/08/2020 7:25 pm  

Great Info,  we are blessed to have the old timers still around.  Both of my parents are gone.

I miss them alot.  I am blessed to work and do something that I wanted to do since childhood.

Work on planes.  Were all important in this world to make it complete.  Thanks again

80 year old Stinson.  


ReplyQuote
Daniel Blystone
Active Member
Joined: 1 year ago
Posts: 6
20/10/2020 1:19 pm  

Hello again I need some basic info.  Please help?

Hydraulic brake fluid called for the Stinson 108s is AV-VV-O-366b from the Service Manual and 

Hydraulic brake fluid called for the Stinson 10A is M-339a Oil  , what are the equivalents today?

Thanks very much


ReplyQuote
resto108
Estimable Member
Joined: 15 years ago
Posts: 232
21/10/2020 10:02 am  

366 became 5606. 339 may have been the vegetable oil? Doesn't really matter, make sure your seals and hoses are compatible with 5606 and use it.


ReplyQuote
Dennis Crenshaw
Estimable Member
Joined: 15 years ago
Posts: 222
22/10/2020 12:55 am  

@dblystone My Dad had told me (this was in the 1960's) that the master cylinders on our 10A were from a 39 Dodge truck, and we always used automotive brake fluid.  I wouldn't necessarily take that info to the bank for your airplane.  Are your master cylinders original?  Are you able to get replacement seals for them?  Our cylinders were corroded and were a constant headache.  Have you considered adapting more readily available aircraft master cylinders?  Also, do you still have the original Hayes wheels and brakes?  I would definitely change those out and some Clevelands in their place.


ReplyQuote
Dennis Crenshaw
Estimable Member
Joined: 15 years ago
Posts: 222
22/10/2020 12:58 am  

Whoops.  I see I gave you the exact same answer a couple of months ago.  


ReplyQuote
Share: