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Doc Watson · 11-01-07, 06:43 PM

I have it on good authority that the original Mk I cars had a 'modified' heater box from a MK I ford cortina car. Can anybody confirm this? if so what modifications are required.

It would be logical to assume that the original matrix and fan was retained and the modification was on the 'fan box' shape and the vents which come from it.

I've found an old exploded view of the item in question (not from a GT40 but the same heater).

The reason I ask is because I now own one of these and plan to put it on my car, routing the water from the 'cow horns' (look at an original engine water outlet pipe) through the central spine to the heater and back to the water pump with one of the water pump outlets blanked off. This keeps all the hot pipes in one place and also alows 'instant' heat as the water takeoff point will not be in a part of the circuit which is controlled by a thermostat. (Do the original cars have a thermostat to prevent water flowing through the radiator on engine start-up???)

BTW it cost £4.99 !!!!

Andy

11-01-07, 06:43 PM	#1 (permalink)
Doc Watson Doc Watson 5 Tenths Join Date: Feb 2005 Location: Devon, UK GT40: Replica Mk I Posts: 513 Rep Power: 10	Original heater matrix and box I have it on good authority that the original Mk I cars had a 'modified' heater box from a MK I ford cortina car. Can anybody confirm this? if so what modifications are required. It would be logical to assume that the original matrix and fan was retained and the modification was on the 'fan box' shape and the vents which come from it. I've found an old exploded view of the item in question (not from a GT40 but the same heater). The reason I ask is because I now own one of these and plan to put it on my car, routing the water from the 'cow horns' (look at an original engine water outlet pipe) through the central spine to the heater and back to the water pump with one of the water pump outlets blanked off. This keeps all the hot pipes in one place and also alows 'instant' heat as the water takeoff point will not be in a part of the circuit which is controlled by a thermostat. (Do the original cars have a thermostat to prevent water flowing through the radiator on engine start-up???) BTW it cost £4.99 !!!! Andy Attached Thumbnails __________________ replica mono chassis original rear clip 1966 289 48IDA's This month its going to be red 'This car you have to be measured for...' Last edited by Doc Watson; 11-01-07 at 08:14 PM.