105 plumbing

[Dana Loomis <dloomis@domain.elided>]

I just acquired a 1750 GTV that has been sitting for a long time.  Some of
the radiator hoses are missing, and I need some help figuring out which
pieces are needed and how they're supposed to be connected.  The car is a
1971 US model  (105.51) that originally had SPICA iniezione, but currently
has a carbureted 1750 with Webers.  I'm not sure whether this is an
original carbureted motor or a converted one: it has what appears to be a
factory intake manifold, the dipstick on the timing cover, and a cam cover
"dented" where the air intake is supposed to pass over.   

What I'm puzzling about right now is the arrangement of the heater and
radiator hoses.   The water pump has only two connections for hoses: one
that is obviously for the lower radiator hose, and one that appears to be
for a heater hose, which runs to it, but isn't connected.  The intake
manifold is also slightly different from the ones I'm familiar with. It has
two hose nipples on the rear:  one points straight backward and seems to be
for the other heater hose, which is there but not connected, while the
second one angles out from the right rear of the manifold.  This nipple is
the same size as the other, but I can't see what is supposed to be
connected to it.  There does not appear to be any bypass hose from the
water pump to the thermostat housing.  

If anyone can help straighten out how the hoses are supposed to be hooked
up and which car this manifold and water pump really belong on, I'd be most
grateful.  

Thanks,
Dana

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