Tubes on frame

[JohnC]

No AC....do you have a link so I can grab this Mark II book...love to have it

[Barry Wolk]

IMG_3021.jpg

Yes, look for this.

[JohnC]

Got it. Will do!!

[Roger Zimmermann]

If you don't find one (it would surprise me), I have one I don't use anymore. Shipping from Switzerland should not be excessive.

[JohnC]

Thanks Roger, found one on ebay...it's on the way

[JohnC]

Yes, the tube can be copper. I believe that 1/2" electrical conduit is about the same size. Yes, you should be able to adapt the vacuum-controlled water valves to any kind of conduit. Do you have a Mark II parts book? The drawings for the system are quite good.

Hey Barry...Recieved my Mark II parts book...no diagrams on the vacuum controlled water valves, heater cores etc. I got the same book you showed me...maybe I' missing something?

[Barry Wolk]

There's one for the heater controls on the console and one for the radiator, but I'm not finding the one I thought I saw. I'll look for one. Sorry. it's a great reference.

[Mark Norris]

I cannot recall ever seeing a diagram of the cooling water or heater water plumbing for our cars so I've made a stab at it ...happy to consider any corrections;

Here is the layout;

Layout.jpg

Here are the heater water flow paths;

Water flow.jpg

And including the cooling water to the radiator;

With cooling water.jpg


PS ...as we all know the vacuum operated heater valve units are infamous for dumping the entire contents of the cooling system out in the middle of the road, it happened to me twice before I found a reliable source for replacements (my advice, don't bother with NOS items as their rubber diaphragms will be too delicate to last).

PPS. be very careful with the heater pipe steel fitting on the passenger side cylinder bank ..they are unobtainable new. Conversely the brass right angle fittings for the heater water pipes are readily available from Mk2 specialists and hydraulics suppliers.

[JohnC]

There's one for the heater controls on the console and one for the radiator, but I'm not finding the one I thought I saw. I'll look for one. Sorry. it's a great reference.

I love the manual...I'll take all the info I can get....Thanks

[JohnC]

I cannot recall ever seeing a diagram of the cooling water or heater water plumbing for our cars so I've made a stab at it ...happy to consider any corrections;

Here is the layout;

Layout.jpg

Here are the heater water flow paths;

Water flow.jpg

And including the cooling water to the radiator;

With cooling water.jpg


PS ...as we all know the vacuum operated heater valve units are infamous for dumping the entire contents of the cooling system out in the middle of the road, it happened to me twice before I found a reliable source for replacements (my advice, don't bother with NOS items as their rubber diaphragms will be too delicate to last).

PPS. be very careful with the heater pipe steel fitting on the passenger side cylinder bank ..they are unobtainable new. Conversely the brass right angle fittings for the heater water pipes are readily available from Mk2 specialists and hydraulics suppliers.

Awesome drawings!! So, metal tubes from the engine block to the water valves on both sides and also metal tubing from the water pump to the heater cores on both sides. The driver side of the water pump has a brass fitting on the pump to connect a tube to the heater core too? I'm going to have to look closer at mine but I'm sure it's misssing on mine