pfenlon Posted February 20, 2021 Report Share Posted February 20, 2021 At the moment my coil on my TR4 is engine mounted. I'm considering having it "Body" mounted, any ideas where is the best place, and pics welcome of course. Quote Link to post Share on other sites
ianc Posted February 20, 2021 Report Share Posted February 20, 2021 The Works' TR4s have two coils mounted on the inside of the front left wing - very convenient for making a quick change in the even of a coil failing, very close to the distributor, and much cooler than the side of the block. You can see them in the photo. Ian Cornish Quote Link to post Share on other sites
RogerH Posted February 20, 2021 Report Share Posted February 20, 2021 Hi Pete, If you are going to use one coil then how about on that flat area above the suspension. Roger Quote Link to post Share on other sites
pfenlon Posted February 20, 2021 Author Report Share Posted February 20, 2021 (edited) Well that was quickly sorted, Not needing Twin coils (Hopefully) Rogers suggestion seems a very handy spot. thanks for the pictures Gents. Roger, surely one of those Dizzy's is in the wrong spot? Edited February 20, 2021 by pfenlon spelling error. Quote Link to post Share on other sites
RogerH Posted February 20, 2021 Report Share Posted February 20, 2021 Hi Pete, not quite the wrong position (for the dizzy) but the top pic needed to be set better to bring the whole thing round to be inline. Quote Link to post Share on other sites
stillp Posted February 20, 2021 Report Share Posted February 20, 2021 I wonder if the vibration of the engine with respect to the body might cause failure of the HT lead from the coil? Pete Quote Link to post Share on other sites
RogerH Posted February 20, 2021 Report Share Posted February 20, 2021 Hi Pete, a possibility but mine has survived for about 10 years and I'm sure IanC's has been there for 30 years. Roger Quote Link to post Share on other sites
Z320 Posted February 20, 2021 Report Share Posted February 20, 2021 No problem here with the coil on the engine Quote Link to post Share on other sites
ianc Posted February 21, 2021 Report Share Posted February 21, 2021 I use copper HT leads, and no problem whatsoever with connection from coil to distributor in 30 years. I fitted my own design of steady bracket for the engine in 1996 (see TR Action 130 or pages G15-G19 in the Technicalities CD), which does prevent the engine rocking about too much! Ian Cornish Quote Link to post Share on other sites
Michael Mckiernan Posted February 21, 2021 Report Share Posted February 21, 2021 Just a thought but they do not recommend fitting oil filled coils horizontally . Resin filled coils can be fitted in any orientation. Mick Quote Link to post Share on other sites
Quicksilver Posted February 21, 2021 Report Share Posted February 21, 2021 coil mounted on the inside of the front left wing like Ian's works car, for more than 25 years problem free. Marcel Quote Link to post Share on other sites
AndrewMAshton Posted February 21, 2021 Report Share Posted February 21, 2021 Ian, I see you have a header tank, is it off an MG? and how is it mounted?, cheers, Andrew Quote Link to post Share on other sites
Lebro Posted February 21, 2021 Report Share Posted February 21, 2021 Looks more like a washer bottle to me ? Bob. Quote Link to post Share on other sites
RogerH Posted February 21, 2021 Report Share Posted February 21, 2021 9 minutes ago, Lebro said: Looks more like a washer bottle to me ? Bob. Look just forward of the carbs Roger Quote Link to post Share on other sites
Lebro Posted February 21, 2021 Report Share Posted February 21, 2021 13 minutes ago, RogerH said: Look just forward of the carbs Roger I scrolled back to look at the photo, & the 1st one I saw was your car - not Ian's . Must TRy harder ! Bob. Quote Link to post Share on other sites
RogerH Posted February 21, 2021 Report Share Posted February 21, 2021 Now, that is a washer bottle - Vauxhall Cavalier early 1990's flavour. Roger Quote Link to post Share on other sites
ianc Posted February 21, 2021 Report Share Posted February 21, 2021 Andrew- yes, I converted my cooling system in 1994 to be sealed, as in modern vehicles. It ensures that the radiator and thermostat housing are always completely full of coolant, which is what one wants. Never needs to be topped up. There's a full description in TR Action 112 and B18 on the Technicalities CD. I obtained the Triumph Dolomite header tank from a scrap yard for £5, making the whole a very cheap and very worthwhile conversion. Ian Cornish Quote Link to post Share on other sites
Hamish Posted February 21, 2021 Report Share Posted February 21, 2021 I did the same and these nice period brass expansion tanks are getting more and more expensive 1972 MG Midget Metal Expansion Tank https://www.ebay.co.uk/itm/233656916556 Sorry for perpetuating thread drift. Quote Link to post Share on other sites
TR4Tony VC Posted February 21, 2021 Report Share Posted February 21, 2021 Hi all A couple of other aspects to think about with coils, firstly the king lead coming off, which tends to happen more often with horizontally mounted positions and secondly with water splash from the road when the weather is gritty and that particular spot on top of the LH inner arch tends to attract a lot. Mounting it ‘clever end’ toward the bulkhead seems to be worse, possibly because water makes its way in the end of the king lead. I've run single and twin coils in the same position as Ian C shows on the same car for over 100,000 miles without any issues, including having the car up to the door tops as we crossed Stanhope Ford some years ago. By contrast, the engine mounted coils failed regularly with heat, vibration and water damage and ‘high up’ positions did similarly. The comments on oil filled coils are well made and these need to be mounted vertically so that the winding is fully submerged otherwise it quickly gets very hot and fails. Again the ‘lower’ inner arch position inboard of the horn mount seems to work well. With all of the ‘off engine’ positions, the coil wiring and king lead needs to be extended far enough to reach, plus an extra few inches to deal with side to side engine movement. It’s also useful to change the routing of the coil wiring (again as per the VC cars) and seal any joints, as well as tuck the second circuit away in a watertight fashion if you go down the twin coil route. regards Tony Quote Link to post Share on other sites
North London Mike Posted February 21, 2021 Report Share Posted February 21, 2021 23 hours ago, stillp said: I wonder if the vibration of the engine with respect to the body might cause failure of the HT lead from the coil? Pete Had mine on the inner wing for 15yrs, no problem, easy to get to, swap over etc Quote Link to post Share on other sites
stuart Posted February 22, 2021 Report Share Posted February 22, 2021 Well just to be different mine is mounted like this and has been faultless for at least 20 yrs. Stuart. Quote Link to post Share on other sites
pfenlon Posted February 22, 2021 Author Report Share Posted February 22, 2021 Anti Gravity stuff Stuart. do you know something we don't? Quote Link to post Share on other sites
stuart Posted February 22, 2021 Report Share Posted February 22, 2021 9 minutes ago, pfenlon said: Anti Gravity stuff Stuart. do you know something we don't? I know it works and has done for a very long time. Stuart. Quote Link to post Share on other sites
RogerH Posted February 22, 2021 Report Share Posted February 22, 2021 Just like a sauce bottle. It must be inverted to get the stuff out. Roger Quote Link to post Share on other sites
David B2 Posted February 22, 2021 Report Share Posted February 22, 2021 10 hours ago, stuart said: Well just to be different mine is mounted like this and has been faultless for at least 20 yrs. Stuart. It looks like a 4a but it’s not only the coil that’s different. 1. What’s that’s mounted between the coil and the washer bottle ? And 2. that’s a neat tool tray you’ve created to the side of the battery. I presume it has another purpose ? Puzzled. Thanks David B Quote Link to post Share on other sites
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