OldBob Posted November 23, 2020 Report Share Posted November 23, 2020 Hi, could I get some thoughts on the attached TR2 dash photo please. There are holes in the metal dash (under my A & B stickers) and the holes have been trimmed over. I want to fit an overdrive switch with a separate neon indicator fairly soon, but leaving a thought for a heater switch at some point in the future. Bill P's books show a variety of combinations and layouts in this area of the dash and I was looking for some standard positions to follow. Many Thanks Bob Quote Link to post Share on other sites
BlueTR3A-5EKT Posted November 23, 2020 Report Share Posted November 23, 2020 Page 24 here may be suitable. https://drive.google.com/drive/folders/0B2H2NJt34OffMDVmOTZlZWItYTcyMy00ZDhkLTliOWEtOWU1OWRhNDZhYmRl Peter W Quote Link to post Share on other sites
Lebro Posted November 23, 2020 Report Share Posted November 23, 2020 (edited) A is where the heater rheostat goes, the overdrive switch is at the same height & is to the right of A now "B" below: Bob Edited January 16, 2021 by Lebro Quote Link to post Share on other sites
OldBob Posted November 23, 2020 Author Report Share Posted November 23, 2020 Thank you both, strange that the car is an Overdrive model originally and yet no hole is in the metalwork at the new point 'B' Bob, but there is one lower down. Anyway, I'll follow the standard. thanks Bob Quote Link to post Share on other sites
Nobbyc Posted November 24, 2020 Report Share Posted November 24, 2020 out of the factory publication Quote Link to post Share on other sites
ianc Posted November 24, 2020 Report Share Posted November 24, 2020 You want the switch where your fingers can reach it without having to take your hand from the steering wheel. That's probably B on Bob's mock-up, but your original B might be suitable (and would avoid the need to drill a further hole). Ian Cornish Quote Link to post Share on other sites
MilesA Posted November 24, 2020 Report Share Posted November 24, 2020 On my 3A, the egg-shaped overdrive switch is at your original B position and it falls easily to my fingers without moving my hand from the wheel. Depends what you priority is: originality or convenient use (if Bob's B position is not so convenient). If you are going to instal an 'overdrive on' indicator, I do not think this was ever standard. I installed one and used a new dash bulb mount with a green lens and a green LED. Works well. Picture below if it helps. Miles Quote Link to post Share on other sites
Lebro Posted November 24, 2020 Report Share Posted November 24, 2020 Just for the record, I find the O/D switch in "my" position is easily flicked up or down without taking hands off wheel. Of course TR2's actualy had a push pull switch in that position ( like the panel light switch) Bob Quote Link to post Share on other sites
Ian Vincent Posted November 24, 2020 Report Share Posted November 24, 2020 (edited) I agree with Bob. When I rebuilt my car and converted it from LHD to RHD I acquired a S/H dashboard which was ready drilled for overdrive in the position Bob recommends. Initially I thought about moving the switch but I use one of the original egg style switches and it falls beautifully to hand. Rgds Ian Edited November 24, 2020 by Ian Vincent Quote Link to post Share on other sites
OldBob Posted November 24, 2020 Author Report Share Posted November 24, 2020 (edited) 9 hours ago, Lebro said: Just for the record, I find the O/D switch in "my" position is easily flicked up or down without taking hands off wheel. Of course TR2's actualy had a push pull switch in that position ( like the panel light switch) Bob I thought that too Bob so purchased the push-pull switch. Turns out only very early TR2's used that one, later ones (mines Sept '55) were eggshaped switch according to Bill P's books. Same dash hole though I think. I take your point Ian C about switching the OD in/out with the fingertips, I personally prefer the stalk type switch (as fitted to 4A & later cars) so the eggshape switch in a way is the closest to this as its a lever action not a pull action which is near impossible with one finger! Miles: yes your OD indicator looks good. A neon indicator (or LED) is planned for mine, but it will be mounted alongside the switch since as I already have a spare hole there. Thanks All Bob Edited November 24, 2020 by OldBob Quote Link to post Share on other sites
John McCormack Posted November 25, 2020 Report Share Posted November 25, 2020 Original positions and switches for a TR2. Quote Link to post Share on other sites
Lebro Posted November 25, 2020 Report Share Posted November 25, 2020 Agreed. Bob Quote Link to post Share on other sites
BlueTR3A-5EKT Posted November 25, 2020 Report Share Posted November 25, 2020 7 hours ago, John McCormack said: Original positions and switches for a TR2. Precisely the layout in the link I gave from the Triumph Laycock installation manual. https://drive.google.com/drive/folders/0B2H2NJt34OffMDVmOTZlZWItYTcyMy00ZDhkLTliOWEtOWU1OWRhNDZhYmRl Quote Link to post Share on other sites
OldBob Posted November 25, 2020 Author Report Share Posted November 25, 2020 Thanks again all, photos very clear & I think that has answered the question on switch positions, it appears my dash was probably swapped as there is no hole in the OD position and it was an OD car from the factory. However, I'm now investigating the egg shaped switch for the OD which I read is not only correct for the late TR2 (from TS6266) but also allows single-finger use. I found a reference to this in Bill P's book 'TR2, 3 & 3A in Detail" on P186 and Bill refers to the egg shape switch as the "Drum-Type overdrive flick switch" which I assume is the one. This was May '55 so some months before TR2 production ending. Regards Bob Quote Link to post Share on other sites
JeffreyKozy Posted April 10, 2021 Report Share Posted April 10, 2021 I am installing an OD Unit on my TR3B, The “Egg” switch confuses me. Which toggle position is On and Which is Off installing the Egg OD type switch on my TR3B . thank you Quote Link to post Share on other sites
Ian Vincent Posted April 11, 2021 Report Share Posted April 11, 2021 The egg type switch should be installed with up as off and down as on. On a RHD car it sits to the right of the steering wheel and can be flicked on or off without removing a hand from the wheel. On a 3b which I guess is LHD I imagine it should be to the left of the wheel but I am sure someone will be along in a moment to confirm or otherwise on this. Rgds Ian Quote Link to post Share on other sites
JeffreyKozy Posted April 11, 2021 Report Share Posted April 11, 2021 My issue is how do I identify when the switch is ON. There are no markings on the toggle Quote Link to post Share on other sites
RobH Posted April 11, 2021 Report Share Posted April 11, 2021 If you haven't got an ohmmeter to measure across the terminals, use a battery and torch bulb. Quote Link to post Share on other sites
JeffreyKozy Posted April 11, 2021 Report Share Posted April 11, 2021 A picture of the “egg” switch with the Toggle in the On position would help thanks Quote Link to post Share on other sites
stuart Posted April 12, 2021 Report Share Posted April 12, 2021 11 hours ago, JeffreyKozy said: A picture of the “egg” switch with the Toggle in the On position would help thanks No picture but if you have an original switch and look at the back side of it where the three screws are that hold it together the screw on the circular section by the toggle denotes the on position Stuart. Quote Link to post Share on other sites
MilesA Posted April 12, 2021 Report Share Posted April 12, 2021 Stuart, that depth of detailed knowledge is just outrageous (as ever)! Before installing my repro 'egg' switch, I simply connected the wires to a battery and bulb from a torch to check the 'open' position. Simples. Miles Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 12, 2021 Report Share Posted April 12, 2021 (edited) 13 hours ago, JeffreyKozy said: A picture of the “egg” switch with the Toggle in the On position would help thanks It can be wired so up or down are on. My car has it wired so up is on. Here too see the way the wires are connected to swap up or down “on”. These are original Lucas switches. I do not have any repro ones to compare. Peter W Edited April 12, 2021 by BlueTR3A-5EKT Quote Link to post Share on other sites
ianc Posted April 12, 2021 Report Share Posted April 12, 2021 In the UK, we turn ON the power to a light or to a device plugged into a 13A socket by putting the switch DOWN. However, I seem to recall that on the Continent, and possibly in the USA, it is UP for ON. Perhaps that is why some TRs have the overdrive switch operating in the opposite way to the conventional UK arrangement? Ian Cornish Quote Link to post Share on other sites
stuart Posted April 13, 2021 Report Share Posted April 13, 2021 16 hours ago, ianc said: In the UK, we turn ON the power to a light or to a device plugged into a 13A socket by putting the switch DOWN. However, I seem to recall that on the Continent, and possibly in the USA, it is UP for ON. Perhaps that is why some TRs have the overdrive switch operating in the opposite way to the conventional UK arrangement? Ian Cornish The reason the UK has down for on is IIRC to aid disabled people as its easier to pull down than push up. FWIW on the BBC sound desks the faders work the opposite way to normal in that you have to pull them back to turn the sound up, this was done in case whoever was working it passed out and slumped forward thus turning the volume to full. Stuart. Quote Link to post Share on other sites
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