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MG TD TF 1500 - basic wiring for engine starting
|I have my motor ready for intial start-up after rebuild.Would like to get some input on a basic wiring set-up to start and run the motor for break in.(coil,starter,dist,start switch,etc.).|
It is a positve ground car, I don't know if it makes a difference as I won't be hooking up the generator or regulater at this time.I would probably continue to use the set up to excerise the motor from time to time as the restoration continues.
|For your positive grounding using jumper-cables; connect the red wire to the + terminal of battery to the engine block, the other to the - battery terminal. Using alligator-clips and a light wire (18 Gauge), connect one end to the black jumper-cable on the battery and to the - pole of the coil, using the same size wire, connect the + pole of the coil to the distributor. To activate the starter, touch the black jumper-cable to the pole on the starter. You can stop the engine by removing either jumper.|
|Ben, how much wiring is present? TD or TF? Is there a wire connected to the fuel pump? Are there wires connected to the regulator? Is there a heavy wire between the starter switch and the starter? Using the starter switch avoids a lot of sparks. Bud|
|Good point about sparks, with fuel possibly present. At some point I damaged the brass threads on the starter hot terminal by using it as the "switch", due to sparking each time the jumper cable touched it. You could put a large ring teminal or something on it you could use to touch/clamp the cable to or something. Bud's idea to use the actual switch really good however. Is the motor in the frame? George|
|Ben, you can see my startup test rig in action on YouTube. Search for "efhask" from YouTube.com. Hope it helps. Mine is neg earth fyi. I have a crude wiring diagram. Holler if you would like to see it.|
|Ed - I've been meaning to ask what sort of tire you have? I like the tread design.|
Thanks very nmuch. Tom Lange
Nobody has mentioned it but I would not start the engine without the actual oil pressure gage or a similar range of temporary gage. I realize you were only asking for the simplfied wiring requirements but oil pressure is very important.
To Bud's point you could simply hook up a wire from the negative side of the battery to the fuel pump and ground the body of the pump.
|Nice video Ed. My car is at about the same stage as yours in the video. I also had the gearbox in and out several times. Just finished the brakes,hooked up drive shaft and clutch. The machine shop did a dry start up as you did several months ago. I now have the radiator in and hooked up. Want to do a longer run in with coolant. I will spin the motor for oil pressure just as you did using the dual gauge from the dash, before ignition.I think I have a good grasp on what I need to do to prep things.If you want to send your diagram it would be helpfull.|
|Ben, you have mail.|
This thread was discussed between 08/11/2012 and 09/11/2012
MG TD TF 1500 index
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