Triumph offered Smiths heaters as an optional accessory in all side screen TRís. The diagram below shows a schematic of the heating circuit, which is fed from the cylinder head through valve (7) through the heater core, then returning to the water pump through fitting (12). These heaters were fairly trouble free when coolant was changed on a regular basis, and if the cooling system and heater were flushed annually. Most problems involve a plugged core or some type of electrical malfunction. This article will provide a simple step by step procedure for (1) checking the heater for proper function, (2) dismantling the heater for examination of components and (3) refinishing and reassembly.
    Attachment 59572

  • Recent Articles

  • Recent Forum Posts


    Re: July 4, 1776!

    And that is where they get their history. From the Hollywood film producers.

    vette Yesterday, 11:58 PM Go to last post

    Re: Installing AC in my 1960 Healey

    Anton, The configuration of running one belt driven component from another belt driven component is not that unusual in the aftermarket custom and hot

    vette Yesterday, 11:27 PM Go to last post

    Re: How does the flasher unit work

    Here is my scribbled up pic trying to explain it. I may not have it down perfectly but I hope this helps. Looking at my pic of the inside of the flasher

    vette Yesterday, 11:03 PM Go to last post

    Re: How does the flasher unit work

    I like John's suggestion. But, if that doesn't help . . . have you tried replacing the flasher unit? They do fail. I recently damaged a nearly new

    blueskies Yesterday, 09:45 PM Go to last post

    Re: Speedo drive gear

    Speedhut GPS Speedo. Dead nuts accurate. Works with my 5 speed. Bugeye Guy even sells one with a pretty good imitation of the OEM Smiths Speedo. Mine

    Jim_Gruber Yesterday, 09:14 PM Go to last post
  • Recent Blog Posts



    As a new member and long time TR owner of a few TR's. I fine the same topics come up time and time again. Here are three I like best; What tire is best and where do I get them and what do they cost....

    Madflyer 07-06-2020 10:27 AM

    Adding AC to BN7 Healey

    Hi,recently visited a well regarded restoration shop and saw the install of AC system on an MGB. The installer had ordered a dual Compressor pulley, and the original v belt now drove waterpump, Fan...

    Factoryman2000 07-05-2020 04:17 PM

    New member from california. Bring back the herald

    I am pursuing the creation of a sixties Triumph Herald. Nearly unknown in the USA.. I had one here in the late 60s. Loved the car handling and packaging. Hated very poor British parts quality and...

    commonground 07-05-2020 02:11 PM


    Good morning all as a new member yesterday I found BCF quite good and as a long time TR owner, I still learn more each day and yesterday a great day for sure. I added my inputs to a number of post...

    Madflyer 07-05-2020 12:13 PM

    Just bought 1975 Triumph TR6 that has sat for last 25 years

    Hello I am a new member, I was directed to the form by a friend. I have recently purchased a TR6 that hasnít moved or started it the last 25 years. Everything under the hood held up nicely and...

    Ale 07-03-2020 07:35 PM
  • Twitter