The Classic Opel Forums - View Single Post

jvandyke · 02-19-2007

The FSM, (http://www.opelgt.com/forums/group-9...e-hook-up.html post 15, 16) calls the lower hose a "feed" (the one to the water pump) and the top the "return", FWIW.

Bottom line: does anyone think it would matter much if I put the valve on the lower, water pump, line? Then does anyone think it matters much if the flow arrow on the valve is pointing the "wrong way", meaning I installed it backwards (no choice really, cable must push and pull to open). I could probably reroute the upper hose to a position that is more stock where I could use the heater valve and cable as stock, but it'd be a PITA compared to just splicing it in as described above.
Let's say the FSM terminology is loose, as it seems. As Opel intended: the valve stops the flow of coolant into the core as it comes from the thermostat, the water pump draws whatever's in the heater system out and leaves it dry, no heat at all (I'm guessing)
If I reverse this, the coolant from the thermostat side will flow into and muck about in the core, there'll be some heat there even if it isn't continually circulating.
It's a question of where in the circuit the flow is stopped. Right?

02-19-2007	#35 (permalink)
jvandyke Opeler Join Date: May 2006 Location: Hudsonville, Michigan, USA Posts: 1,794	The FSM, (http://www.opelgt.com/forums/group-9...e-hook-up.html post 15, 16) calls the lower hose a "feed" (the one to the water pump) and the top the "return", FWIW. Bottom line: does anyone think it would matter much if I put the valve on the lower, water pump, line? Then does anyone think it matters much if the flow arrow on the valve is pointing the "wrong way", meaning I installed it backwards (no choice really, cable must push and pull to open). I could probably reroute the upper hose to a position that is more stock where I could use the heater valve and cable as stock, but it'd be a PITA compared to just splicing it in as described above. Let's say the FSM terminology is loose, as it seems. As Opel intended: the valve stops the flow of coolant into the core as it comes from the thermostat, the water pump draws whatever's in the heater system out and leaves it dry, no heat at all (I'm guessing) If I reverse this, the coolant from the thermostat side will flow into and muck about in the core, there'll be some heat there even if it isn't continually circulating. It's a question of where in the circuit the flow is stopped. Right? __________________ "Being ignorant is not so much a shame, as being unwilling to learn." Benjamin Franklin Last edited by tekenaar; 02-19-2007 at 06:00 PM.