Author Topic: WRD insulation  (Read 2968 times)

glenn

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WRD insulation
« on: February 12, 2012, 17:20:05 »
Has anyone insulated the WRD coolant line from the head and the WRD thermo housing itself- to make sure hot, 200+ coolant gets to the WRD???....

ja17

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Re: WRD insulation
« Reply #1 on: February 13, 2012, 23:55:16 »
Hello Glenn,

I suspect it is all relevant. The engine thermostat should maintain the temperature in the system whether the heat loss is at the radiator,cabin  heater, the WRD pipe or anywhere else in the cooling system. 
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

glenn

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Re: WRD insulation
« Reply #2 on: February 14, 2012, 03:01:09 »
Joe, Re: WRD    Have you ever put a washer under the snap ring inside the WRD slide valve?  If so, where did you get it?

twistedtree

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Re: WRD insulation
« Reply #3 on: February 14, 2012, 03:44:38 »
I'm not Joe, but when I needed to add them I just dug around in my washer pile until I found something suitable.
Peter Hayden
1964 MB 230SL
1970 MB 280SL
2011 BMW 550xi

ja17

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Re: WRD insulation
« Reply #4 on: February 14, 2012, 05:24:35 »
Hello Glenn,

Adding a shim here shuts off the air valve sooner.  Here is a source of metric shims ..............................................   http://www.mcmaster.com/#standard-metric-shims/=g8mzy2
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback