Nick B.

Thanks. It took me a moments, but not it is sweet :-) I felt rather stupid when I realised the fueltank was empty... Thanks. Next step was checking compression. I feared a burnt valve. I had experienced lack of power and knocking on acceleration. It produced very similar albeit low cold engine readings: Cyl1: 105 psi Cyl2: 105 psi Cyl 3: 105 psi Cyl 4: 105 psi. Cold engine. I probably need to warm it up and repeat. However it is not taxed at the moment, so no real good chance to drive it. Cheers Nick, Denmark

Just checked the signal - it appears everything works as supposed. Now I must start rummaging around with the maps. Cheers Nick IMG_5914[1].MOV

YESSSSSSS, Succes (kind of) I followed your advise, and checked for spark, That was OK, then checking cyl 1 TDC if the sensor was correctly positioned, which it was (nearly) Still could not start, when I realised I was out of fuel. After a quick run in the daily driver to the nearest petrol station, it still could not start. I realised the ignition wires was a bit of thinking cyl 3 was 4 and vise versa. Anyways, after correcting this, I managed to get it running (first time since 10CR2022, apart from a brief drive to a new garage on the old ignition. Now to the fun part - MAPPING!!! Hopefully video if the lumpy engine is attached. It sounds as it is a tractor. Cheers Nick os: I apologise for the spelling. I have been in a closed garage with the engine running for ppr. 20 minutes, so slightly dizzy IMG_5913.MOV

Hi, and thanks for the input. I got slightly sidetracked by familyobligations The setup is a spitfire mk3. I am running on a somewhat statndard dizzy setup. The megajolt unit and all bits and bobs are wired in, and should in theory be good to start the car. However, I would like to get some kind of confirmation that all sensors were well before I changed from dizzy to megajolt, hence I tried to get a good reading from spinning the startermotor. I have not tested for spark - I did not pass the first test - see the signal from the crankshaftsensor. Aaaah, I hope this might explain the absent signal. When I get back from christmass I will change over abandoning the dizzy setup and check for spark and hopefully have the spark and sensorsignal. Fingers crossed. I have 8 months to get the car soreted prior to the 10CR. Hope you all have a nive holiday. Best wishes Nick

This one might be the culpruit. Thing is - embarrasingly - it is appr. 14 years ago I put the triggerwheel on the crankshaft, and I cant remember the logic, whether I used the 12 oclock top dead venter as suggested sensorplacement. However, as life turned out, sensor was laced at appr. 8 oclock. I figured, I could adjust this in the setting after setting up. I better get a new timinggun to confirm what is up and down. That one also got lost in moves. I will hack on! Best wishes Nick

Hello Nick Thanks for helping. It is very frustrating. I did not actually start the car, it is in a closed garage, so I just cranked it until battery went flat. The smith mechanical rpm gauge of the old dizzy dit fluctuate as i cranked the engine, and I would suspect at least some movement on the megajolt screen. There was absolutely no action on the megajolt screen apart from the load gauge. And this surprises me as the green led on the megajolt box was flashing when I cranked the engine. I suspect the connection between megajolt and computer is good, as the MAP sensor is showing vacum fluctuatin on the load gauge. I have set the ignition advance to 12. But my theory was, that I could get a reading, and work with that with the original ignition in place, and when I have confirmed all works, I could switch. And if by swithching coil earths you mean the four green output dots in the lower right screen, they are all inactive. No lights. Best wishes Nick

Hi, I am having yet another go at my megajolt install. It is all wire up. I can load the map on the pc from the module. When I crank the engive the vacum registers from the manifold. However no action on the rpm gauge, despite the green diode flashing on the megajolt module. I am running a 'dry' install, where it is all wired in, bit the sparkplugs are not connected, and the old distributor is still in place. Should I not be getting any readings when the green diode is flashing? Should I just give up and get a 123 distributor? Best wishes Nick

Somehow my wife (ENT surgeon) was not to impressed either last week when I used the needleholder to hold a bullet while soldering. At the time it seemed like the perfect tool.

Report from the slowest install of Megajolt. After my first attempt at Megajolt failed some 12 years ago with a fried Megajolt box, I am now en route again! When the previous install was removed, one of the bulletjoints broke and had to be resoldered. Which was a slight problem with harness in situ in a garage without electricity! I got hold of a 12V soldering iron, and managed to get the bullet soldered in place while lying in the footwell on the drivers side. Now all was in place, and the green lights were bright (at least the two for power and RPM. No light at the adv. diode). I connected a laptop to the box and was met by 'couldn't open port'. Bollocks. After much messing about, I managed to update the drivers for the usb-ports, but no luck. With the old ignition still in place, I tried turning the car on, and for no apparent reason, the pressure from the manifold seemed to work, despite the no port issue, and I could read the manifold pressure. After a minute or two of idling, suddenly the no port issue solved itself, and the error message disappeared. Strange but nice. I could now sit in the garage and watch the manifold pressure on screen while revving the engine. However no reading of the RPM. I tried fiddling about with the wires, but no change. I decided to call it the day, and will get back and investigate the sensor at the trigger wheel next time I have a few hours with the spit. Perhaps the sensor needs some care after sitting in exposed in the engine bay with no use for the last 10 years. Cheers Nick

Winning suggestion! Thanks Roger. After trying with fire, I went home and ordered the 12V soldering iron. Now I just have to wait for it to appear at my doorstep. Meanwhile I better read the megavolt instructions. I have found a map for a spitfire with somewhat same configuration as mine on autosportslabs (attached) - that will have to do as a startingpoint: It is made for this US engine: Large crank. Lightened and balanced Crank. gas flowed head. Fast road cam. Twin HS4's carbs running AAA needles. Roller rockers. My engine differs on not having roller rockers and running a standard MK3 cam and standard crank. We will se what happens. Cheers Nick Robbaiscmap.mjlj

Started much to my own surprise! probably due to Doug Hansen tweaking the carbs and ignition at Rolduc. However there was some nasting hesitation when accelerating, and I hope it is down to the ignition and MJ will sort it out. Oooh, thanks John. It really is possible, but looks overly complicated. Meanwhile I have been donated a not to shabby Lenovo ideapad. It is an extremely slow and somewhat strange computer. I succesfully installed Megajolt software, and will test the thing later this week. For now I have to figure out how to solder a broken bulletconnector in a garage without eletricity. Plans are including a blowtorch to the bullet and hope there are enough solder left in the wire and indside bullet to get the two parts stuck back together. To be cont. Cheers Nick

Thanks. I had seen the thread, but hoped there had been some development since 2004. You might be right about purchasing a cheap secondhand laptop. Oh well, of to the facebook market or similar to find something that runs windows10. Just annoying that I only have the kids surplus macbook after my old trusty lenovo died. I just got back to the car yesterday after neglecting it since last 10 countries run. It is still dirty from the torrental rain in france. It started up after appr. 20 seconds of cranking. Pretty impressive considering the quality of fuel, and I had forgot to disconnect the battery. Cheers Nick

Hi, I am still trying to get my megajolt installation to work. Latest obstacle is, that my ancient laptop gave up the ghost, and now I only have a macbook available. Has anyone figured out if megajolt can be run from a macbook? Cheers Nick

we may need to bring this tool on the next 10cr

Thanks Pete. I had missed that one. Must go measure! Must go rummage around the pile of bits at the remote garage and measure those dipsticks as well! Cheers Nick