Davo

Apologies... your right12v to the coil. Its a very simple set up as far as I know. The choke is completely manual. The fuel pump is mechanical only. I think there is a starter module but it’s beyond me what it does. Maybe to do with an old ballast wire.

Thanks for all the help. I think partially unrelated but the battery is dead which is causing a few problems first. Last of the crazy questions though, if I were stuck whilst out because of the intermittent fault, if I were to put 12v from the battery to the distributor and then 12v to the relay on the starter motor to start it, would that work to get me home? Admittedly I’d have no lights etc but would that be enough?

So thanks to you both. I dread the thought of stripping down but equally I can’t work with the snakes nest of useless wires under the dash. So tell me if this is completely bonkers.... I can’t stand the thought of starting the complete job and biting off more than I can chew and never finishing. The lights and accessories all work; most of the time. Would it be crazy to have two looms in place until I’m ready to completely strip out the old. Could I just put in the new; connect up only to a new key or starter button, the starter motor and distributor, and just disconnect the old from those component so at Least I have a car that reliably starts, and then gradually moving lights etc onto the new loom throughout the winter? Mad?

Hi, i have b reg car pinto engine and donor parts from a Sierra gl. I put a new mot on it yesterday so I’m all ready for summer driving. But it I do have an intermittent electrical problem. Some times you turn the key and just get nothing. No start. No lights. Only hazards. Leave it 5 minutes or poke the harness under the dash and suddenly you’re back on again. Interestingly I lost power on the way to the mot station 3 times yesterday, each time at a junction. From this complex diagnosis I reckon there’s probably something loose under the dash. But with all the fancy wiring from a Sierra it’s really messy under there with tape and all sorts. So a little part of me just wants to put in a complete new loom. It can’t be that complex right? Switched power to the starter, coil and each of the lights and you should be almost there right? Lol. I am pretty terrible at making connects etc, so in an ideal world I’d want a kit with just the minimal with all the lighting pre terminated. Does such a thing exist? Any recommendations?

Thanks Peter. All received. It fits the sender perfectly. Ive just used washers and nuts for the minute until I can build a brace. Ill hopefully be able to take it for a spin over the weekend.

Having ordered the wrong thing twice now, can someone confirm that this one will do the job please: https://simplybearings.co.uk/shop/p512815/BS332-5.33mm-Section-59.69mm-Bore-VITON-Rubber-O-Rings/product_info.html?backstep=1

All attempts so far have failed so Ive just ordered that o ring. Making the clamp I imagine will be more challenging though. Ill let you Know how it goes.

Thanks guys. Ill keep trying.

Turns out the advice about not removing the sender unit if at all possible was sound. As predicted Im having trouble sealing it. Any advice?

Hey thanks for the tips. I gVe into temptation in the end and removed it to see what was going on. I didnt really learn anything more other than it looks like three separate circuits inside corresponding to each of the pins. However, after putting it all back together it now works! Im not convinced the tank is sealed properly but at least I have a working gauge that looks about right. Jonny, I live in redhill near parley. Would be nice to meet someone local to chat things over. Im a bit of a newbie.

So theres two possibilities here maybe. 1 I actually have an electric fuel pump built into the tank and it should be powered by 12v using one of the other spades on the block 2 the additional spade is for flow or something Either way the unit needs an earth which for good reason its not going to get off the fuel tank. In short, I need to Earth it on one of the spades. ?

Mine does look very similar to that. Sadly I suddenly I have bigger problems so I might have to pause this.... water pouring from below the crank case pulley.

Thank you. I’ll have a read. As it happens, from fiddling the wire popped off and earthed itself on some metal; shortly after that the gauge went to the top. So at least I know now that the gauge works. The tank looks like it’s a shiny rectangular one so I’m assuming it was custom for the kit car. The sender part though looks like it is part of a larger unit that encompasses the fuel line. The larger unit is secured by four nuts. I don’t think the plastic sender part comes out on it’s own.

Ive had a look at what I think is the right diagram in Haynes, but I can see two different fuel sender objects.

Looking now in daylight, tested the wire that goes to the male connector and when there is ignition, there is 8v on that wire. Not sure what the other two male connectors would be for though.