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Odd connector on coil

RR '88 3.5 efi petrol/gas

Hello everyone,

Theres a connector on (or was!) the coil. I wonder if anyone can tell me what it is & what it's for. It has a Lucas number on RD 953066. I can't find any mention of it in manuals or on t'internet!

It looks like a double-ended spade connector joined by a square plastic block approx 1 1/2 inch x 1/2 inch dimensions in total. It seems to have a resistance - I can't measure the figure because my meter isn't working right, but it's not just a straight-through reading.

I couldn't get the car to go the other night, after finding I had no spark I went to the coil. Fiddled with the connections and left this connector off in error really and the car fired up and runs without it. But what is it, what's it for and am I going to cause a problem with something later? It doesn't run with it on - no matter which way it's fitted. The coil does have 3 or 4 wires on each terminal connected with piggy-back connectors etc - I wonder if it relates to the lpg system or the alarm?

Thanks for any info

Dave

Reply to
Dave Wheatley
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Sounds like it's your ballast resistor - the motor will run ok without it for a while, and then the coil will pack up!

Richard

Reply to
beamends

After your suggestion I checked the 'net. What I have looks nothing like these things- it's not ceramic at all, it doesn't get hot. It appears to be a small black plastic lozenge shaped thing with a spade terminal on each end.

I know the sort of thing you are suggesting, although I can't find it on my vehicle I did have one on a battery powered remote control racing buggy. Would it be just a sort of resistor or diode? If it's going to cause problems I need to replace it as the car wouldn't go with it fitted- I have had intermittant problems for a while on the ignition side including a distributor cap where the centre 'pin' had arced away, maybe these things are related.

Dave

Reply to
Dave Wheatley

Could it be a suppressor capacitor that someone has fitted to try to reduce interference between the coil and a radio? If so, and the capacitor has failed, then it could have caused an earth leakage, thus no spark. Alan.

Reply to
A Lee

Basically the ignition on a RRC (or at least carb ones) is 6V, so the gizmo is just a resistor with a huge capacity for heat disipation!

Richard

Reply to
beamends

plastic

Square *plastic*? That rules out a ballast resistor then.

Sounds like a suppression capacitor. Any markings on it?

Reply to
PDannyD

It's not a surpressor - they are like barrel shaped usually aren't they? This thing is like an in-line spade connector but with a plastic 'lump' in the middle. Dave

p.s. I struggled to start the car this moring! it was fine once running- relevant to this part??

Reply to
Dave Wheatley

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