Author Topic: Removing heater core valves in a 111  (Read 3647 times)


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  • USA, TX, Dallas
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Removing heater core valves in a 111
« on: September 02, 2011, 04:24:46 »
Anybody know how to remove the heater core valves in a W111? I have the lever off and have marked what position it is in. I have screwed a long 4mm screw into the threaded hole. When I pull on the screw head, the valve moves just a bit but seems to be stopped by something. I have heard there is a retainer but can't seem to find it.

Any suggestions? BTW, the valve is not seized and will rotate. I am replacing the o-ring because it leaks a little.   
'68 280SE W111 coupe
'60 220SE W128 coupe
'70 Plymouth Roadrunner 440+6


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Re: Removing heater core valves in a 111
« Reply #1 on: September 02, 2011, 11:10:42 »
(Digging into memory)  The valve(a rotating plug) has a iron whatsit that rotates in a slot in the body.  The whatsit must come out before the plug can come out and the o-ring can be replaced on the plug.