Page 1 of 1
Scott 4408B Master Cylinder
Posted: Thu Jan 05, 2012 4:04 pm
by Hatz617
I'm pulling out my master cylinders (Scott 4408B) for other maintenance and figure as long as they're out it would be a good time to give them a good cleaning and new seals if necessary. What I'm looking for is an exploded parts diagram for these master cylinders and/or some re-build verbiage perhaps from a service manual. 4408Bs are not covered in the Series 100 manual. For anyone that has overhauled 4408Bs, are there any critical adjustments/dimensions (like the .040 Lock-O-Seal gap) on other 170 master cylinders? The 4408Bs have three seals/O-rings that can be replaced. One is a common MS O-ring. There other two are unique as far as I can determine...Preferred Airparts had them.
Bob
Re: Scott 4408B Master Cylinder
Posted: Fri Jan 06, 2012 3:22 pm
by GAHorn
Univair handles repair parts for these type brake cyls.
The Aeronca group also uses these, and one of their suppliers and better-known shops who sells parts for the Scott brakes is:
BURL'S AIRCRAFT, LLC
Burl A. Rogers
Manager/Member
P.O. Box 671487
22635 Davidson Dr. (UPS/FEDEX only)
Chugiak, Alaska 99567
Phone: 907-688-3715
Fax: 907-688-5031
Email:
burl@biginalaska.com
Re: Scott 4408B Master Cylinder
Posted: Sat Jan 07, 2012 3:14 am
by Hatz617
Both Univair and Burl's were out of stock.
Bob
Re: Scott 4408B Master Cylinder
Posted: Wed Sep 21, 2016 5:37 pm
by n3833v
Has anyone had problems with fluid coming out the vent hole on top of these cylinders? What might be bypassing?
John
Re: Scott 4408B Master Cylinder
Posted: Thu Sep 29, 2016 3:10 am
by GAHorn
n3833v wrote:Has anyone had problems with fluid coming out the vent hole on top of these cylinders? What might be bypassing?
John
Have you recently topped them off with fluid?...or worked on the calipers?
Re: Scott 4408B Master Cylinder
Posted: Thu Sep 29, 2016 4:47 pm
by n3833v
I have not George. It is for another 170 on the field and he has it being rebuilt with new seals.
John