[W126 Coupe] Anyone know good used source for 380SEC vacuum pump?

[Dick Spellman]

Hi Bruce:

You have the early model with (3) wires?  Brown = ground followed by 
blue and yellow to pull or push air right?

Part # is 000 800 03 48

Just wondering if they can be rebuilt.  Seems that the actual pump 
impeller has 4 vanes on a concentric wheel.  It's this wheel that 
eventually binds up where it's surface area is tight to the housing to 
either side of it.  I'd like to figure out if the binding is due to a 
loss of lubrication on the wheel surface.  Anyone with a thought on 
this?  What type of replacement lubricant will hold up?  Needs to be a 
thin film of some sort.

Also, I have a spare pump whose motor works just fine but, the wheel 
questions above are what's making it seize up.

Dick

Bruce Mendel wrote:

> I find them all the time for newer W126's for $30!! But not the 380SEC 
> of course.
>  
> MB part# is 126 800 0348. I tried Dad's, Potomac, etc.
>  
> Help, dealer wants $500!!
>  
> Bruce