Bypassing the heater / control valve

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Bypassing the heater / control valve

140/164 Series General Forum for the Volvo 140 and 164 cars

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Jul 2nd, 2012, 14:03	#1
Billy Smalls Master Member Last Online: Apr 30th, 2023 15:34 Join Date: Dec 2011 Location: Bristol	Bypassing the heater / control valve Hi there I need to isolate the heater control valve on my 144DL. I’ve been told by Simon from Brookhouse that this is a fairly common thing for P1800 and Amazon owners to do hence why I am posting this on their forum sections too. I can’t get my head around the flow and return system, so if someone could instruct me how to bypass the heater valve and temporarily blank off the matrix WITHOUT getting coolant in the car…..would be very grateful. I have 15mm copper pipe and a pipe-bender at the ready…. Thanks __________________ just the one - 1970 144DL Auto

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