Use Code: OCTOBER15. On the face of it, it doesn't need to be operated if the engine is running (should be obvious ...), but that still leaves the situation of no warning buzzer if the engine has stalled and the ignition is still switched on. You can get the ignition switch itself for $39.95 or the lock and switch for $67.95. { The advantage of this is that all that power no longer flows through the ignition switch. y -= 2000; However whilst the diagram indicates there are seven electrical connections to the switch, a look at a switch will show that several of these are paired giving just the four electrical connections that one would expect. The picture below shows the brown and the next spade (non-factory wiring) being paired, then the next two terminals are paired (again non-standard accessory wiring), then the white/brown for the starter is on its own, then the last two are paired for white ignition wires (non-standard wires on the second of these). So I've done a video to show anyone else. The white wires are shown going to terminal 2 - four wires on two spade connectors. Watch. (y<10? Thanks everyone so far..Paul, looks like there is another type of ignition switch in some of the 72/73 cars..mine appears to be original. The wiring for the ignition system on later MGB 's is somewhat confusing with wires being the same colour. When turned to the 2nd position (start) all three terminals are connected together. Probable cause is a defective sender unit. New Light Switch for 1977-80 Head Light MGB MGB Headlamp AAU4563 Headlight (Fits: MG MGB) ... New Lucas Ignition Switch for 74-80 MGB and 1975-79 Midget (Fits: MG MGB) $34.95. See, it is all very simple! // -->. // could use splitString() here // but the following method is // more compatible I installed an ignition relay last week. This switch and most of the harness wiring were there even in in all cars including cars without OD. But one example of a switch from a 72 has terminals 1, 2, 3 and 4 with linked spades (which will be for the two connectors on the four white wires) on terminal 3. However the fuel pump is still on the relay - not ideal if it sticks on! (d<10? All; Auction; Buy It Now; Sort: Best Match. 1 sold. I am looking for detailed instructions on replacement. That list doesn't have a 16. } When it comes to your MG MGB, you want parts and products from only trusted brands. if(y >= 100) Electrical wiring projects are best done on a workbench with drawers and cabinets. May 2015: Note that this numbering may not be correct. Dec.77) Starter Dead, inertia type (off site) Starter Dead, pre-engaged type (off site) Trunk Light; TSCA or Overdrive Switch Fuse (CC-AMGBA Feb.85) Turn signal/hazard Warning Switch Repair (Driveline Oct.09) Weak Battery, shorted fan switch; Wiring Diagrams for MGB, MGC - (33) large format in color return "" + Show full PDF. MG MGB Technical No spark at all BBS discussion. mgb, mgc, mgbv8 wiring diagrams a au dvt ao n-w ceire www.advanceautowire.com ... ignition switch alternator warning lamp starter headlight switch g g g g g p g p w w n w n bg r r r r wr n w w ny wg n n n n n n n n g a u g e t i & lamp d a s h i l l u m i n a o n l a m p s courtesy/map light/switch rw … ÜRO PARTS . 'Jul':( 8==m)?'Aug':(9==m)? With the key turned fully left or out of the lock all of the terminals are isolated. var lmd = document.lastModified; MGB GT Red Warning Light - Dashboard. MG MGB FRONT WIRE WHEEL GREASE CAP , PAIR (2) $9.95. 45D4 & 43D4 Distributor Federal, 1975-76. This is followed by installing the right terminal end on the power lead wire and connecting it to the battery terminal. My problem is that I am trying to connect up my new wiring to this switch, but cannot figure out what to put on where! //// finally display the last modified date// as DD-MMM-YYYY// var m = date.getMonth() + 1; Similarly, the green with stripe wires in the brake light, wiper, or gauge circuit is fed by the fused ignition switch. accessories. Price: Alternate: No parts for vehicles in selected markets. y +=2000; The blades on the back are marked 30 (2 blades), 57a, 15, 50, and 75...what these all mean I don't know. 62/64 MGB - (from Bentley A8753AW) 64/67 MGB - (from Bentley B51798) 67/68 MGB - (from Bentley E1898W) 68/69 MGB - (from Bentley E2333W) 68/70 MGB - (from Bentley E2764W) ... frayed or exposed wiring etc, loosen the alternator mounting bolts and check that the faces of the mounting plates to … Free shipping. } MGB Badges & Brightwork; MGB Dashboard & Interior; MGB Doors, Catches & Stays; MGB Electrics; MGB Gauges; MGB Glazing, Seals etc; MGB Heating & Cooling; MGB Hoods & Tonneaus; MGB Lights; MGB Switches; MGB Trim Panels, Seat Covers & Carpets; MGB Washers & Wipers; MGB … They are durable and easy to install, but they offer very little in the way of security. My problem is that I am trying to connect up my new wiring to this switch, but cannot figure out what to put on where! 'Nov':'Dec'; Note: The Parts Catalogue indicates that MkII cars had the later 13H926 ignition switch with the 4th 'AUX' terminal, but the schematics don't show this being used until the 1969 model year. Fortunately it was only the wire feeding the OD, had it been one of the others either the ignition warning light would have been on when switched to accessories, or even worse the ignition, fuel pump and all the green circuits would have been powered. Here at Advance Auto Parts, we work with only top reliable Ignition Starter Switch product and part brands so you can shop with complete confidence. // check if we have a valid date // before proceeding Hi Folks, I have recently purchased a 1976 MGBGT.....extremely pleased with it except had a bit of a disaster with the ignition switch/barrel where the key has snapped and there is no spare. - later cars had a lower voltage coil with a resistor in line , but when the ignition switch is turned to the start position, the coil is then fed from the starter circuit/relay.Check what happens at the back of the ignition switch. Note also that replacement switches for UK cars have an extra purple/pink as well as the extra grey wire. For the simplest control wiring power comes from the ignition switch on a white wire to the manual control switch, then to the solenoid, then to the gear selection switch, then to ground. Check that the ignition relay is working. 4-Cylinder . } "0"+y:y); document.write("Last updated " + date_lastmodified() + ""); ÜRO PARTS {#BHM7143, URO004992} Does not have wire for ant-run on switch. 73 and later schematics show the white wires on terminal 3, which would be correct for this switch, but the white/green for 73 and later is on terminal 5 and there is no terminal 4. The Live MG MGB Technical BBS is active now. s = "" + date_ddmmmyyyy(new Date(d1)); The best part is, our MG Midget Ignition Starter Switch products start from as little as $30.99. Updated January 2010: This version is on 78 and later cars, several circuits having been removed from the ignition relay and put back on the ignition switch, possibly because of problems with relays sticking on. Let us know how you get on so we can advise if none of the above helps. The switch number appears to be 800068. MG MGB Technical - Ignition switch wiring, This thread was discussed between 23/01/2007 and 24/01/2007. y -= 100; Earlier MGB had a toggle switch on the dash for OD. Welcome to our resource for MG Car Information. On this model at least more than one spade is used for the white wires, and I found one of those swapped over with the green/white accessories wire. New Ignition Switch for 1974-80 MGB and 1975-1979 MG Midget Free Shipping. Brad } How to wire up the ignition on older cars with points and coil. var mmm = When it comes to your MG Midget, you want parts and products from only trusted brands. Taken from the renowned Bentley MGB manual and published by "Autowire", these wiring diagrams cover all British and US MGB and MGC cars. MG MGB Technical - Ignition switch wiring I have a 72/73 BGT (UK) with what appears to be a different locking steering column ignition switch..i.e.it has 6 blade terminals. Click links for 33 different wiring diagrams for MGB and MGC, large format in color. Single 12 Volt Battery (MGB! { Shopping Options Electrical & Ignition. These are the same switches as used for North America from 1973 on. Turn the ignition switch and measure the voltage. 'Jan':( 2==m)?'Feb':(3==m)? "0"+d:d) + "-" + { Again refer to the photo above for the physical arrangement. $7.60 shipping. MG MGB 1978, Spark Plug Wire Set by Bosch®. NEW BETTER VERSION. (Arthur Johnson, restoring a 1972 ex-California GT in Australia). mmm + "-" + from $46.99. On later cars, more colors were added. ( 7==m)? It turns out that the engine was not being turned off by removing the power from the Ignition Relay, it was actually being starved of fuel by the Anti Run-On Valve. 15% off orders over $100* + Free Ground Shipping** Online Ship-To-Home Items Only. It agrees with 57a as being parking lights but wiring for this doesn't come off the ignition switch in an MGB, neither does the contact to bypass the ballast resistor (rubber bumper cars only) if this is what Ralph is referring to in his comment on terminal 16. Time: ending soonest ... MADE IN USA Moroso Super-Tune Spark Plug Wires Custom Fit Ignition Wire Set 9023 (Fits: MG MGB) $52.99. Hopefully you will have around 7 volts. Testing has shown that this only happens when the switch is in the 'OFF' position, however one would expect that it should also be operated in the accessories position. Here at Advance Auto Parts, we work with only top reliable Ignition Starter Switch product and part brands so you can shop with complete confidence. Ignition - Ignition Relay, UK (78-on) Hover over a wire to confirm the colour. var s = "Unknown"; MG MGB Technical - Replacing Ignition Barrel. Hi, Putting dash back in now, all ok except have no idea of connections at the ignition switch(1967 gan 4 ) dash mounted switch, thought i did a sketch years ago and put it in a safe place!!! (10==m)?'Oct':(11==m)? When you make use of your finger or perhaps follow the circuit with your eyes, it is easy to mistrace the circuit. $20.79: $0.00: $20.79: Alternate: Quantity: Add to Cart. //// get last modified date of the // current document.// Check as follows: Remove the Green/Blue wire from the sender unit in the cylinder head. anyone know what connections go … For instance, a purple wire with a stripe going to the horn lets you know that this circuit is fed by a fused wire that is always hot. Vacuum Advance Units. Then turn the starter and hopefully the car will start. Wiring Diagrams for MGB, MGC. 'Apr':( 5==m)?'May':(6==m)? Note that UK cars seem to have an extra grey wire on the ignition switch that does not have a matching wire in the main harness. Switch on the ignition. Switch from your OE spark plug wire set to the high-quality Mag core wire set from Bosch. #MGB #UKHere we go time to change out for the new. if(y >= 2000) Early production MGB (1962-1967) use a starter solenoid (triggered by ignition switch start position) in place of the (MGA) manual switch. Has a later ignition switch been fitted? With the key inserted and turned to the first position (ignition) terminals 3 (brown) and 2 (white) are connected together. The new wiring loom has 5 leads, which is standard for this car. { Since the British models ... MGB Ignition Run-On Keywords: 2 watching. Here is an exploded view of the dash assembly and the key switch is number 58 on the picture. 6 Pole Ignition Switch Wiring Diagram from www.mgb-stuff.org.uk Print the cabling diagram off plus use highlighters to be able to trace the circuit. $21.95. if(0 != (d1=Date.parse(lmd))) ÜRO PARTS {#URO010436} ÜRO PARTS .