saftey washer part number needed for MA4-5

Jeff Vaughan

Well Known Member

• Dec 20, 2011

• #1

I have a MA4-5 carb and I need to purchase the copper saftey washer that locks the inlet strainer assembly. I have a Service manual that shows an exploded view of the parts but no part numbers. Anyone know the part number or have a parts list?

Any help appreciated.

 

K

krw5927

Well Known Member

• Dec 20, 2011

• #2

Is it #54 on this page? It's the only part in my manual that says "safety washer". If so, the manual I have says the part number is A78-121.

 

Last edited: Dec 20, 2011

Walt

Well Known Member

• Dec 20, 2011

• #3

This is the one I believe you are talking about...

http://www.aircraftspruce.com/catalog/eppages/mcfarlanegaskets3.php

 

N

noelf

Well Known Member

• Dec 20, 2011

• #4

The ACS p/n is "MC16-A48". Works fine. I just replaced mine last week during my annual condition inspection.

 

Jeff Vaughan

Well Known Member

• Dec 20, 2011

• #5

Thanks guys!!!

Merry christmas!!

 

R

Ron B.

Well Known Member

• Dec 20, 2011

• #6

Kurt, should be PN 21 on your diagram.

 

K

krw5927

Well Known Member

• Dec 21, 2011

• #7

Ron B. said:

Kurt, should be PN 21 on your diagram.

Click to expand...

In that case noelf has it. My OH manual says that part number is A16-A48. Looks like the ACS MC16-A48 is the same thing.

 

N

noelf

Well Known Member

• Dec 22, 2011

• #8

Also, there was a recent "Tips for Homebuilders" video on EAA's website that shows how to remove, clean, and reinstall the finger screen. A new lock gasket is used and torqued. The torque value stated in the video is twice the value given in the actual Marvel-Schebler service documentation.