Cowling fasteners retainer rings

[OR75]

With time,  the holes in the top fiberglass cowling got larger and the split retainer rings do not have a large enough external diameter to keep the fasteners in place. And these things tend to jump like grasshoppers when they fall on the ground !!.

Anyone came up with a good idea on how to keep the fastners in place ? or have a source of split retainers that would do the job ?

Thanks !  

[pjsny78]

i am having the same issue but thankfully its just for 1 or 2 of the cam locks. id like to hear some of the solutions as well.

[Ron McBride]

I just installed new cam locks on my F (Metal cowling). I bought these from aircraft spruce. The new lock rings are .020 wider that the originals that I removed. This may woek for you on the J's.

Ron

[OR75]

would you have the corresponding part number ? 

Thanks !

[Ron McBride]

Here are the page's and the assorted parts.   Ron

http://www.aircraftspruce.com/search/search.php

http://www.aircraftspruce.com/catalog/hapages/4002camlocwashers.php

Cad Plated

High Shear Grommet Retaining Ring

R4T

$0.89

Cad Plated

Camloc Retaining Ring

4002-SW

$0.65

[jetdriven]

I ordered A 4002-SW retaining washer and it pulled through the top cowl.  Maybe it was the oversize washer in there already. Looks like the only repair is fiberglass. Maybe stick a 1.25" square of .025 aluminum  in there on the inside of the cowl (with the hole for the camloc fastener)  an put the retainer behind that.

 

Is the R4T the oversize?