[Healeys] Smoke and brakes

Per Schoerner per at schoerner.se
Thu Jun 8 11:52:59 MDT 2017

When you switch on the ignition you feed the brake switch with current. Normally this switch is located somewhere under the dynamo.

What was the smoke coming from? Well, the heater box is located under the dash. Could be leaking.

You say the engine didn't get hot.
It might be that it actually got very hot because the coolant had leaked out. If the level of the coolant is very low, e.g. under the sensor you will not see how hot it is on the instruments. The sensor is located in the cylinder head, just under the thermostat. The engine will boil though, did it do that?


Skickat från min iPhone

> 8 juni 2017 kl. 17:30 skrev Simon Lachlan <simon.lachlan at homecall.co.uk>:
> I have received 2 emails from my nephew.
> He has an early Phase 2 BJ8 ie with the single light setup front and rear and the 8-way flasher relay box. Car is LHDrive.
> The car’s wiring loom looks to be new and in excellent condition; it looks like it has been competently installed with all clips and grommets where one would hope to find them. The individual wires are emphatically not old & crumbly ie flakey insulation.
> The car starts and runs well. It feels strong and is well behaved ie it coped with appalling traffic on a very hot day when we drove it out to Chantilly. It started first time when the engine was hot. In fact, the engine didn’t get hot; I reckon it has a recored(?) radiator. Certainly it has the 6-blade fan offered, I think, by the factory (like a 6 blade version of the normal 4. Something we don’t usually see or need in the UK).
> First email:- “It was very hot today and something weird happened: a bit of smoke came out from just above my knees (just below the dashboard along the steering wheel pole). the smoke was white and little (about as much as a match would make when it goes off, but white). Then a funny noise went on for 5 seconds (like a motor, a bit like the starter motor we can hear at the end when the engine doesn't want to start (do you see what I mean?).
> Anyway after that incident everything went back to normal:
> -all the lights (turning indicators, panel lights, all the instruments...) seem to work.
> I have no idea what happened and I have not found anything not working!”
> A few days later, the second email:- “Everything electrically seems to work. Except that when I push on the brake pedal nothing lights up at the back. Shouldn't it?”
> This is the Paris car, my being back in the UK with the previous issues cured.
> Now:-
> I am presuming that the two issues are related….the smoke and the lack of brake lights.
> I am discounting the heat reference.
> I am puzzled by there being no brakes related wiring under the dash yet that’s where the smoke came from.
> The “funny noise” has me stumped.
> The only place where braking circuitry and lighting circuitry meets is in the 8-way flasher box. (Barring bare wires shorting out).
> I am going over to Paris in about a month’s time in order to help get the car down to Roscoff and thence by ferry over to Plymouth in the UK and up to my house. I will then have it for a few weeks and will do various things to it……seatbelts being item one.
> So, I (we) would like to make the longish journey with brake lights and without smoke.
> I have, I think, all the tools I need in Paris but I would welcome ideas……..
> Has anyone had this happen to their car?
> What is the likely connection between the two seemingly irreconcilables. (Smoke under the dash yet brake lights only are affected).
> Can anything to do with the brake light switch lead to smoke under the dash? I can’t see how, myself.
> I just want to be slightly prepared when I get there. I won’t have much time…..certainly not enough to get replacement parts over to Paris from the UK.
> Any thoughts?
> Thanks,
> Simon
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