1971 > MGB > 1.8L L4 > Electrical-Switch & Relay > Ignition Starter Switch. // could use splitString() here // but the following method is // more compatible Get Your MG MGB Ignition Switch And Wiring from AutoZone.com. The original MGA starter circuit is very simple, just a manual pull switch that will connect battery power to the starter motor to make it crank. Wiring Diagrams for MGB, MGC. All; Auction; Buy It Now; Sort: Best Match. May 2015: Note that this numbering may not be correct. Shopping Options Electrical & Ignition. document.write("Last updated " + date_lastmodified() + ""); You can get the ignition switch itself for $39.95 or the lock and switch for $67.95. 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) "0"+y:y); Updates on parts and where we go. As I'd had the car nearly 30 years by then, it had probably been like it since new. ÜRO PARTS . 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. Electrical wiring projects are best done on a workbench with drawers and cabinets. Price: Alternate: No parts for vehicles in selected markets. ÜRO PARTS {#BHM7143, URO004992} Does not have wire for ant-run on switch. 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. mmm + "-" + Single 12 Volt Battery (MGB! { 2 watching. function date_ddmmmyyyy(date) 'Apr':( 5==m)?'May':(6==m)? So I've done a video to show anyone else. } (Arthur Johnson, restoring a 1972 ex-California GT in Australia). if(0 != (d1=Date.parse(lmd))) if(y >= 2000) ( 7==m)? When turned to the 2nd position (start) all three terminals are connected together. Turn the ignition switch and measure the voltage. // check if we have a valid date // before proceeding 10 watching. // -->. y +=2000; return s; I installed an ignition relay last week. { //// finally display the last modified date// as DD-MMM-YYYY// Thank you in advance for your patience. //// get last modified date of the // current document.// Ignition - Ignition Relay, UK (78-on) Hover over a wire to confirm the colour. MG MGB FRONT WIRE WHEEL GREASE CAP , PAIR (2) $9.95. MGB Steering Lock & Ignition Switch Order your MGB Steering Lock & Ignition Switch ⛽ Fast, worldwide delivery British car experts ♚ PayPal & other payment options ⚑ Part No. } 'Jan':( 2==m)?'Feb':(3==m)? With the key inserted and turned to the first position (ignition) terminals 3 (brown) and 2 (white) are connected together. $21.95. { var d = date.getDate(); We provide the right products at the right prices. 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 BETTER VERSION. The advantage of this is that all that power no longer flows through the ignition switch. How to wire up the ignition on older cars with points and coil. The switch number appears to be 800068. if(y >= 100) var m = date.getMonth() + 1; 'Jun': 45D4 & 43D4 Distributor Federal, 1975-76. #MGB #UKHere we go time to change out for the new. 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. 'Jul':( 8==m)?'Aug':(9==m)? var mmm = 1964-1978 MGB Electrical Wiring Diagrams PDF; 1964-1978 MGB Electrical Wiring Diagrams PDF Updated: January 2021. I am looking for detailed instructions on replacement. Click links for 33 different wiring diagrams for MGB and MGC, large format in color. The white wires are shown going to terminal 2 - four wires on two spade connectors. 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. MGB 1975-76 . ... frayed or exposed wiring etc, loosen the alternator mounting bolts and check that the faces of the mounting plates to … Has a later ignition switch been fitted? 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! These PDF files can print full size on 11" x 17" paper. ( 1==m)? 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 1970 model year. Even so it meant the OD solenoid would have been had I left it in 3rd or 4th with the manual switch on, which is not a good thing. Use Code: OCTOBER15. Watch. Check as follows: Remove the Green/Blue wire from the sender unit in the cylinder head. Time: ending soonest ... MADE IN USA Moroso Super-Tune Spark Plug Wires Custom Fit Ignition Wire Set 9023 (Fits: MG MGB) $52.99. Again refer to the photo above for the physical arrangement. When you make use of your finger or perhaps follow the circuit with your eyes, it is easy to mistrace the circuit. Part number 127651 and 24G1345 This is the ignition with the barrel and 2 keys Fits Midgets from GAN5 -89515 – 96272 and HAN10 86303 – 86765 This is item number 4 on the diagram. 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! MG Midget and Sprite Technical - Ignition switch Wiring. Wikipedia DIN27552 gives 75 as radio, cigarette lighter i.e. Then turn the starter and hopefully the car will start. All electrical tools can be safely kept in storage workbenches. This thread is from the archive. Since the British models ... MGB Ignition Run-On Keywords: That list doesn't have a 16. anyone know what connections go … New Ignition Switch for 1974-80 MGB and 1975-1979 MG Midget Free Shipping. The new wiring loom has 5 leads, which is standard for this car. 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. var y = date.getYear(); (10==m)?'Oct':(11==m)? 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. Welcome to our resource for MG Car Information. 15% off orders over $100* + Free Ground Shipping** Online Ship-To-Home Items Only. 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. The best part is, our MG MGB Ignition Starter Switch products start from as little as $30.99. var s = "Unknown"; (d<10? Universal Coil Mounting Bracket ... Protect-A-Boot & Wire Kit by DEI. On later cars, more colors were added. 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). 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 … // handle different year values // returned by IE and NS in // the year 2000. $7.60 shipping. var lmd = document.lastModified; 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. Universal ignition switches are used on off-road vehicles, boats, generators and industrial equipment. ( 4==m)? MG MGB Technical - Ignition switch wiring, This thread was discussed between 23/01/2007 and 24/01/2007. Taken from the renowned Bentley MGB manual and published by "Autowire", these wiring diagrams cover all British and US MGB and MGC cars. Free shipping. 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. MGB . Check that the ignition relay is working. Here is an exploded view of the dash assembly and the key switch is number 58 on the picture. 'Nov':'Dec'; 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 … Showing the additional contact for the purple/pink wire - E. When the key is inserted a pin pushes the spring (arrowed) against the body of the lock to connect an earth to the wire, which if the driver's door is opened sounds the warning buzzer. However the fuel pump is still on the relay - not ideal if it sticks on! } Similarly, the green with stripe wires in the brake light, wiper, or gauge circuit is fed by the fused ignition switch. The Live MG MGB Technical BBS is active now. The wiring for the ignition system on later MGB 's is somewhat confusing with wires being the same colour. 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. 4-Cylinder . See, it is all very simple! With the key turned fully left or out of the lock all of the terminals are isolated. MG MGB 1978, Spark Plug Wire Set by Bosch®. When it comes to your MG Midget, you want parts and products from only trusted brands. 1 sold. ÜRO PARTS {#URO010436} ÜRO PARTS . : GRID019822 - 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. Here we have a Midget Dashboard ignition switch and keys . MG MGB Technical - Replacing Ignition Barrel. Connect one end of your test light to the terminal on this wire, the other end to ground. Hopefully you will have around 7 volts. { This is followed by installing the right terminal end on the power lead wire and connecting it to the battery terminal. Best Match. Essential in tracing and repairing old wiring, these follow the original wiring colours. (Photo Peter Mayo). } The procedure for wiring an ignition switch is as follows: Step 1: Disconnect the negative battery terminal To begin with, the negative battery terminal must be disconnected before locating the positive power lead to the switch. When it comes to your MG MGB, you want parts and products from only trusted brands. Filter ... MGB 1980, Replacement for 1975-79 OPUS Style . MG MGB Technical No spark at all BBS discussion. 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. Switch from your OE spark plug wire set to the high-quality Mag core wire set from Bosch. 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. Its pretty easy really, basically you are using the power from the ignition switch (white wire) to turn on the relay and let power from the battery flow to the fuse box and the starter and coil. Free shipping. y -= 100; 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. function date_lastmodified() 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!!! 'Sep': } Let us know how you get on so we can advise if none of the above helps. They are durable and easy to install, but they offer very little in the way of security. "0"+d:d) + "-" + Note also that replacement switches for UK cars have an extra purple/pink as well as the extra grey wire. 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. 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. 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. This switch and most of the harness wiring were there even in in all cars including cars without OD. 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. var d1; $20.79: $0.00: $20.79: Alternate: Quantity: Add to Cart. from $46.99. 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. Earlier MGB had a toggle switch on the dash for OD. 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. The best part is, our MG Midget Ignition Starter Switch products start from as little as $30.99. Switch on the ignition. 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. Wiring is straightforward, with threaded studs on the back of the switch over … The switch is an SWF type (Germany). { Probable cause is a defective sender unit. The gauge should slowly climb to hot and the test light should glow. return "" + accessories. These are the same switches as used for North America from 1973 on. One trick that I use is to print out a similar wiring diagram off twice. Just a couple of thoughts. Brad Show full PDF. (y<10? 1NBYWDVWGI8z3TEMMLdJgpY5Dh8uGjznCR18RmfmZmQ

mgb ignition switch wiring

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'Mar': 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. s = "" + date_ddmmmyyyy(new Date(d1)); MGB GT Red Warning Light - Dashboard. MG > 1971 > MGB > 1.8L L4 > Electrical-Switch & Relay > Ignition Starter Switch. // could use splitString() here // but the following method is // more compatible Get Your MG MGB Ignition Switch And Wiring from AutoZone.com. The original MGA starter circuit is very simple, just a manual pull switch that will connect battery power to the starter motor to make it crank. Wiring Diagrams for MGB, MGC. All; Auction; Buy It Now; Sort: Best Match. May 2015: Note that this numbering may not be correct. Shopping Options Electrical & Ignition. document.write("Last updated " + date_lastmodified() + ""); You can get the ignition switch itself for $39.95 or the lock and switch for $67.95. 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) "0"+y:y); Updates on parts and where we go. As I'd had the car nearly 30 years by then, it had probably been like it since new. ÜRO PARTS . 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. Electrical wiring projects are best done on a workbench with drawers and cabinets. Price: Alternate: No parts for vehicles in selected markets. ÜRO PARTS {#BHM7143, URO004992} Does not have wire for ant-run on switch. 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. mmm + "-" + Single 12 Volt Battery (MGB! { 2 watching. function date_ddmmmyyyy(date) 'Apr':( 5==m)?'May':(6==m)? So I've done a video to show anyone else. } (Arthur Johnson, restoring a 1972 ex-California GT in Australia). if(0 != (d1=Date.parse(lmd))) if(y >= 2000) ( 7==m)? When turned to the 2nd position (start) all three terminals are connected together. Turn the ignition switch and measure the voltage. // check if we have a valid date // before proceeding 10 watching. // -->. y +=2000; return s; I installed an ignition relay last week. { //// finally display the last modified date// as DD-MMM-YYYY// Thank you in advance for your patience. //// get last modified date of the // current document.// Ignition - Ignition Relay, UK (78-on) Hover over a wire to confirm the colour. MG MGB FRONT WIRE WHEEL GREASE CAP , PAIR (2) $9.95. MGB Steering Lock & Ignition Switch Order your MGB Steering Lock & Ignition Switch ⛽ Fast, worldwide delivery British car experts ♚ PayPal & other payment options ⚑ Part No. } 'Jan':( 2==m)?'Feb':(3==m)? With the key inserted and turned to the first position (ignition) terminals 3 (brown) and 2 (white) are connected together. $21.95. { var d = date.getDate(); We provide the right products at the right prices. 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 BETTER VERSION. The advantage of this is that all that power no longer flows through the ignition switch. How to wire up the ignition on older cars with points and coil. The switch number appears to be 800068. if(y >= 100) var m = date.getMonth() + 1; 'Jun': 45D4 & 43D4 Distributor Federal, 1975-76. #MGB #UKHere we go time to change out for the new. 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. 'Jul':( 8==m)?'Aug':(9==m)? var mmm = 1964-1978 MGB Electrical Wiring Diagrams PDF; 1964-1978 MGB Electrical Wiring Diagrams PDF Updated: January 2021. I am looking for detailed instructions on replacement. Click links for 33 different wiring diagrams for MGB and MGC, large format in color. The white wires are shown going to terminal 2 - four wires on two spade connectors. 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. MGB 1975-76 . ... frayed or exposed wiring etc, loosen the alternator mounting bolts and check that the faces of the mounting plates to … Has a later ignition switch been fitted? 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! These PDF files can print full size on 11" x 17" paper. ( 1==m)? 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 1970 model year. Even so it meant the OD solenoid would have been had I left it in 3rd or 4th with the manual switch on, which is not a good thing. Use Code: OCTOBER15. Watch. Check as follows: Remove the Green/Blue wire from the sender unit in the cylinder head. Time: ending soonest ... MADE IN USA Moroso Super-Tune Spark Plug Wires Custom Fit Ignition Wire Set 9023 (Fits: MG MGB) $52.99. Again refer to the photo above for the physical arrangement. When you make use of your finger or perhaps follow the circuit with your eyes, it is easy to mistrace the circuit. Part number 127651 and 24G1345 This is the ignition with the barrel and 2 keys Fits Midgets from GAN5 -89515 – 96272 and HAN10 86303 – 86765 This is item number 4 on the diagram. 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! MG Midget and Sprite Technical - Ignition switch Wiring. Wikipedia DIN27552 gives 75 as radio, cigarette lighter i.e. Then turn the starter and hopefully the car will start. All electrical tools can be safely kept in storage workbenches. This thread is from the archive. Since the British models ... MGB Ignition Run-On Keywords: That list doesn't have a 16. anyone know what connections go … New Ignition Switch for 1974-80 MGB and 1975-1979 MG Midget Free Shipping. The new wiring loom has 5 leads, which is standard for this car. 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. var y = date.getYear(); (10==m)?'Oct':(11==m)? 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. Welcome to our resource for MG Car Information. 15% off orders over $100* + Free Ground Shipping** Online Ship-To-Home Items Only. 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. The best part is, our MG MGB Ignition Starter Switch products start from as little as $30.99. var s = "Unknown"; (d<10? Universal Coil Mounting Bracket ... Protect-A-Boot & Wire Kit by DEI. On later cars, more colors were added. 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). 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 … // handle different year values // returned by IE and NS in // the year 2000. $7.60 shipping. var lmd = document.lastModified; 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. Universal ignition switches are used on off-road vehicles, boats, generators and industrial equipment. ( 4==m)? MG MGB Technical - Ignition switch wiring, This thread was discussed between 23/01/2007 and 24/01/2007. Taken from the renowned Bentley MGB manual and published by "Autowire", these wiring diagrams cover all British and US MGB and MGC cars. Free shipping. 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. MGB . Check that the ignition relay is working. Here is an exploded view of the dash assembly and the key switch is number 58 on the picture. 'Nov':'Dec'; 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 … Showing the additional contact for the purple/pink wire - E. When the key is inserted a pin pushes the spring (arrowed) against the body of the lock to connect an earth to the wire, which if the driver's door is opened sounds the warning buzzer. However the fuel pump is still on the relay - not ideal if it sticks on! } Similarly, the green with stripe wires in the brake light, wiper, or gauge circuit is fed by the fused ignition switch. The Live MG MGB Technical BBS is active now. The wiring for the ignition system on later MGB 's is somewhat confusing with wires being the same colour. 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. 4-Cylinder . See, it is all very simple! With the key turned fully left or out of the lock all of the terminals are isolated. MG MGB 1978, Spark Plug Wire Set by Bosch®. When it comes to your MG Midget, you want parts and products from only trusted brands. 1 sold. ÜRO PARTS {#URO010436} ÜRO PARTS . : GRID019822 - 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. Here we have a Midget Dashboard ignition switch and keys . MG MGB Technical - Replacing Ignition Barrel. Connect one end of your test light to the terminal on this wire, the other end to ground. Hopefully you will have around 7 volts. { This is followed by installing the right terminal end on the power lead wire and connecting it to the battery terminal. Best Match. Essential in tracing and repairing old wiring, these follow the original wiring colours. (Photo Peter Mayo). } The procedure for wiring an ignition switch is as follows: Step 1: Disconnect the negative battery terminal To begin with, the negative battery terminal must be disconnected before locating the positive power lead to the switch. When it comes to your MG MGB, you want parts and products from only trusted brands. Filter ... MGB 1980, Replacement for 1975-79 OPUS Style . MG MGB Technical No spark at all BBS discussion. 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. Switch from your OE spark plug wire set to the high-quality Mag core wire set from Bosch. 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. Its pretty easy really, basically you are using the power from the ignition switch (white wire) to turn on the relay and let power from the battery flow to the fuse box and the starter and coil. Free shipping. y -= 100; 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. function date_lastmodified() 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!!! 'Sep': } Let us know how you get on so we can advise if none of the above helps. They are durable and easy to install, but they offer very little in the way of security. "0"+d:d) + "-" + Note also that replacement switches for UK cars have an extra purple/pink as well as the extra grey wire. 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. 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. 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. This switch and most of the harness wiring were there even in in all cars including cars without OD. 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. var d1; $20.79: $0.00: $20.79: Alternate: Quantity: Add to Cart. from $46.99. 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. Earlier MGB had a toggle switch on the dash for OD. 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. The best part is, our MG Midget Ignition Starter Switch products start from as little as $30.99. Switch on the ignition. 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. Wiring is straightforward, with threaded studs on the back of the switch over … The switch is an SWF type (Germany). { Probable cause is a defective sender unit. The gauge should slowly climb to hot and the test light should glow. return "" + accessories. These are the same switches as used for North America from 1973 on. One trick that I use is to print out a similar wiring diagram off twice. Just a couple of thoughts. Brad Show full PDF. (y<10?

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