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-   -   91 350 SDL monovalve (http://www.peachparts.com/shopforum/diesel-discussion/383757-91-350-sdl-monovalve.html)

loneranger 01-30-2017 11:30 AM

91 350 SDL monovalve
 
I replaced the valve with an aftermarket valve. The faster I go, the less heat I get. Seems like the dynamic suction is pulling the valve closed. Is this the problem? If so how do I fix it?

compu_85 01-30-2017 11:46 AM

A lot of the aftermarket valves don't work properly, even when new...

-J

GJEMD 01-30-2017 11:59 AM

one solution is to pay $150 for MB monovalve. Another is to put a rubber o ring between of the valve and the water inlet. This keeps a stream of hot water flowing at speed. You will need to remove it to get max AC in the summer.

loneranger 01-30-2017 02:01 PM

I was not aware Bosch valves were still available

sixto 01-30-2017 10:39 PM

Try running with the monovalve electrically disconnected. Do you still lose heat at speed?

Sixto
83 300SD
98 E320 wagon


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