1446 replies to this topic

[ed4ran]

hehehe, that is a funny.
You can also get uprated coils as well

[miniboo]

i can get an uprated coil here for about 35 quid. not sure what the differecne is though

[ed4ran]

Basically higher power spark.

[ed4ran]

Clicky picy for link

[The Matt]

Yeah, I'd heard about the uprated coils, but I need one ASAP so had to go with standard to be honest.

[ed4ran]

also standards going to be fine on a mini engine,
someone on 16v said they found the limit of the coil pack to be over 20psi boost

[miniboo]

lol i didnt realise you could get them on amazon

[The Matt]

also standards going to be fine on a mini engine,
someone on 16v said they found the limit of the coil pack to be over 20psi boost

Uh oh! My tyres are running more pressure than that! Will my coil blow up?

[ed4ran]

yes your coil will blow!!!!!

[The Matt]

LMAO!!! I had the best backfire EVER last night!!!!

Well, it ran (for a little while).


Soooo, I fitted the new battery, the new coil pack, reconnected everything else. Cranked her over with the plugs earthing out on the block and I had a beauty of a spark on each plug. Sooo, I wound her over til the oil pressure was up (about 5 seconds I guess). Fitted the plugs back in, wound her over again, chug chug, tried to run.

So, double checked a few things, seemed all OK, so I gave her another crank and.....CHUG CHUG......... POP....CHUG CHUG...POP...CHUG CHUG.....KABOOOOOM!!!!

Me thinks the timing is out a little! I've basically aligned the trigger wheel so that when the engine is at TDC, the missing tooth is 90 degrees before the VR sensor. From everything I have read, I am sure that this is right.

Problems now, well, the fuel in the tank is about 7 months old, so basically no good. The carb is not yet setup properly (but I think it's somewhere near) and the timing needs setting up right.

I tried to run it with the EDIS disconnected from the Megajolt, so it should have run on a basic 10 degree advance, but it didn't want to run properly at all (would basically not start). Soooo, more fine tuning tonight should hopefully see me right! I think that the timings a little too far retarded as it is, so I'm going to advance it on the trigger wheel, try it again, advance it a little more, try it again and so on. Need to double check my TDC reference actually thinking about it. I'm using the notch on the bottom pulley and the toothed pointer on the timing cover at the moment.

[dn89mini]

Check your wiring, I reversed the coil pack 2/3 and 4/1 sparking 180 out of phase and nearly gave the me a heart attack when it backfired.

[The Matt]

Check your wiring, I reversed the coil pack 2/3 and 4/1 sparking 180 out of phase and nearly gave the me a heart attack when it backfired.

Yeah, I'd wondered about that, but I am 99% certain its correct. Will double check tonight!

[The Matt]

Actually, thinking about it, I'ms sure I've got pin 10 on the EDIS module wired to coil a, and pin 12 wired to coil b. But I will deffo double check.

Wonder if the VR polarity could knock it out of phase?

[ed4ran]

Missing tooth should be 90 degrees AFTER the vr sensor with engine at TDC!!!!!!

[ed4ran]

Same as this only MegaJolt instead of Megasquirt.