Hi Jean-Woo, On Fri, 27 Feb 2004 19:12:21 -0800, Jean-Woo Kim <jeanwoo@FULLER.EDU> wrote: . Now I want to restore it to original condition Mmmm, begs the question, Was the Heater Core Leaking so the PO unhooked it?? Which is which? Does it matter? Yes and no! I do not mean to be cryptic here but the rear heater 'sits' in the heating system in parallel, between the In/out lines that feed the front heater core. If you have a Bentley... look at the heater diagram to get a picture of the system. If the lines were reversed, there may be some difficulty with bleeding all the air out after re-installing the heater into the system?? My concern is I want the rear heater core to be completely cold when I shut it off in the summer. Some on this list, swear-by keeping the rear heater shut-off valve, slightly 'cracked' during the summer.... keeps fresh coolant circulating there-by keeping corrosion in-check. The rear heater cores have a rather high incidence of leaking and this may have a beneficial effect in slowing down this occurrence of core leakage? My recollection of unhooking mine a few years ago says: The lines from the rear-heater to the main feed/return lines are slightly different in length SO, which is which may make itself known when you look at it?? I realize there are many different iterations of rear-heaters in our Vans. Pass, Camper and Syncro; each has different feed/return lines to the rear-heater. Good luck in your installation Phil Z. |
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