67 Fintail Heater hose diagram/setup

[burningman]

Hi,

I have a 1967 230 that has had the heater hoses bypassed (cut) at the firewall, it's an old Cali car and I'm in Washington and would like to try to hook the system back up if the heater core is still good.

Does anyone have a picture or diagram of how the hoses are routed?

Thanks

[joshhol]

On my 63 220S, there is an outlet on the cylinder head on the drivers side that runs into the firewall through a hose. The port on the firewall for this hose is about the same height as the hose coming out of the head. Higher up there are two outlets on the firewall. Here a METAL line connects to these ports, merges into one and runs on the passenger side, under the air cleaner and into the T-Stat/water pump housing.

Hope you still have that metal line or you might have to find one in a junkyard. Of course, they probably bypassed the heater core for a reason, leaks.

Hope this helps.

[Mark DiSilvestro]

Many years ago, while driving Dad's '60 220SE Fintail, the left heater valve assembly popped off, giving my right foot a nice warm antifreeze bath. Fortunately, a local radiator shop was able to re-solder the valve to the heater core (after I had removed the entire heater from under the dash!)

When my '60 220S was with it's original owner, some 'hack' mechanic installed longer heater hoses through the firewall to attach that metal coolant tube, moving it over the valve cover. Later, 'hack' mechanic needed to remove the valve cover so he apparently used a crowbar to bend the tube out of the way! My coolant tube is now curved with two ugly kinks, but it still functions OK so I've left it alone.

If your coolant tube is missing and you can't find a decent used one, it's probably still availible from Mercedes, for a small fortune. If not, and you're handy with a blowtorch, you can fabricate one from small copper tubing and fittings, availible at hardware or plumbing supply stores.

Happy Motoring, Mark

[dobrodan]

I've had the same experience. The car got real humid very fast. The heater cores are easily repaired,but getting them out takes time. Taking the radio and glove box out make it easier. You should be able to find the pipe in a junk yard. I have one on a parts car I would sell but shipping might be a pain.