Choose Car Type


then
Search for parts
or
Browse for parts

Home  »  Engine, Transmission, wheels/Tyres and Heating/Cooling  »  HEATERS  »  HEATER VALVES  »  HEATER VALVE KIT TR4-6 screw in type

HEATER VALVE KIT TR4-6 screw in type

RTR Upgrade
Part No:
RTR1486-4K
Price
£160.43
Price Ex VAT @ 20%
£133.69

IN STOCK This part is immediately available

Improved Heater Water Valve Kit; includes new hose, all Fittings and Instructions. This kit replaces the poor standard valve with a new valve which screw directly into the original adaptor, providing better control of heater water flow due to the precision internals of this valve.

This valve has the same taper thread as the original valve and can therefore be screwed directly into the original valve adaptor. TR4-4A owners (and some TR250 and Carburettor TR6 owners) will have an angled adaptor 133061 which is shown below for reference. The later straight TR6 part 148435 is required as this adaptor provides a better installation. Please be aware that this particular kit is best suited to cars with carburettors or even Electronic Fuel Injection where all the operating mechanisms are below the induction system. This applies to Petrol Injection cars too with original linkages, we have found that the space required for the valve is compromised by overhead throttle mechanisms, and if such a throttle mechanism is fitted, our inline kit RTR1486-2K is likely to be more appropriate.
 
This new design of valve provides very smooth, friction free operation. The internal water flow regulating tumbler has a cleverly designed aperture shape, which means that increase in water flow is proportional to lever movement. The original TR4-6 heater valve opens in a linear manner, which gives most of the control during the first quarter of the movement and very little control over that last quarter of the movement. It is therefore almost impossible to proportionally control the water flow and therefore the heat output from the heater matrix. In addition the valve is invariably so stiff that shutting the water off completely is almost impossible (without opening the bonnet and doing it manually). The internal construction of this new valve, with its friction free operation goes a long way to overcoming this inconvenient phenomenon.
 
There are 4 kits available in this RTR1486 range. The RTR1486-1K kit suits TR2-3B with our Clayton Heater fitted, the -2K kit provides an inline valve for TR4-6 with a standard heater fitted, the -3K kit fits TR2-3B with the standard heater fitted and the -4K kit provides a valve that screws into the cylinder head adaptor of TR4-6. The -3K kit is also a universal kit, allowing it to be fitted to any car requiring a valve as it includes adaptor hoses to suit 13, 16 and 19mm pipe work as well as a 1m long operating cable.
 
Whist  these valves are available on the general market, the valve alone is not an attractive proposition as other components are needed to effect a proper installation. The push on connections are 16mm (5/8") diameter whereas the TR heater hoses are ½" (12.7mm) and a means of attaching the cable to the operating post on the valve is required. RevingtonTR kits include all the components to make a proper installation including conversion hoses and the appropriate cable to valve post trunnion as well as all other parts needed, with instructions for a comprehensive installation. Hoses in these kits are made for us by an OEM manufacturer as are our valves, therefore as with other RevingtonTR product, quality is Assured.

Engine, Transmission, wheels/Tyres and Heating/Cooling

No catalogue plates are available