69 Wiper Access Door_Washer

[Terry M.]

Re: 69 Wiper Access Door_Washer

Terry-----


There are TWO parts involved here. The white plastic, "hat-shaped" pieces are the BUSHINGS. These were used for several locations on the wiper door mechanism and were GM #3922010. The part that Wes was referring to, GM #3940537, I believe is a thin spring washer.

I bow to your superior knowledge.

[Terry M.]

Re: 69 Wiper Access Door_Washer

Jim,
I suspect the Heli-coil is made from a superior material to teh aluminum die cast (pot metal) of the door itself. Thus you will not have nearly the corrosion issues that result from the dis-similar metals in the aluminum based door and the steel fasteners.

Howel,
The less strong grades (That is why I said blue and NOT red) act as an insulating agent to keep the aluminum door and the steel fastener separated and thus minimize the opportunity for galvanic corrosion to take place. Note I did NOT say "prevent". Any anti seize material will work on the same principle of separating the two major components to also minimize galvanic corrosion.

[Wes G.]

Re: 69 Wiper Access Door_Washer

I think I found a good replacement for the washer in question (GM # 3940537) for the wiper access door.

ID	OD	Thickness
6.4 mm	12 mm	0.5 mm
0.252 in	0.472 in	0.02 in

Wes 69 Wiper Door_Washers_1a.jpg 69 Wiper Door_Washers_3a.jpg

[Stuart F.]

Re: 69 Wiper Access Door_Washer

The wave washer almost looks like those used on shift linkage (clevis to arm).

Stu Fox

[Donald S.]

Re: 69 Wiper Access Door_Washer

These cars often become archeological digs.

I happened to be messing with my shifter this afternoon on my '69 and noticed something white poking out from the drain; they've probably been there for almost 30 years! I was thinking I should have left them there so I'd remember where they are in case I need them in the future! A bolt, two white bushings and half a well nut from my fender louvers.
Don
drain.jpgfound in drain.jpg