Hall effect ignition

[debe]

You could try it but the module does need a heat sink. & keep an eye on the heat generated. Another distributor you should keep an eye out for is whats used on Ford Falcon models EA to EL. It has the same Hall sensor & the Thick Film IGN unit has built in over current cut off if the engine stops & the coil is still drawing current. Pict is the TFI unit on Fords.

 

[PetePan]

OK, agreed, ignitor heat needs to be monitored. I could mount it in the breeze alongside the coil. One of the cheap tiny LCD temperature probes would serve.

Another nice tip on the Ford TFI. I see those mounted to side of the dizzy. They throw a mean spark!
What kind of coil is that with it? Looks maybe a twin outlet? Wasted spark type?
Plenty of old Falcons getting pensioned off around the place.

Thanks for sharing.

PS. I like the way you marked the terminals. It makes such good sense.

 

[debe]

The ignition coil is off a Holden Comodore, theres 3 coils on the V6 motors. I used one on a Karcher Diesel hot water pressure cleaner, as a replacement Igniter.

 

[PetePan]

A big thanks to member: debe for excellent, helpful information which allowed me to convert my 1961 Harley Panhead to hall effect ignition. The object was to fit the ignition without hacking or drilling extra holes in vintage parts.

Here's how it went:

I used parts recycled from '83 -on Ford Falcon distributors. Hall effect pickup and TFI breaker module.



Modified Harley rotor c1984 -on. The boss was eventually brazed to the rotor. It was a nice fit onto the existing points cam and secured by two allen head grub/set screws. The screws landed on the "flats" of the points cam and are accessed via the two windows. Also the original points don't physically rub on these "flats" so no damage therefore points could be refitted at any time.



Here is the Hall mounted on the Harley distributor. I used all existing holes in the base, no extra drill/tapping. The original points post is to the right and clears the rotor.



Continued...

 

[PetePan]

Rotor mounted on cam. Incidentally, ignition advance is controlled by twistgrip on left handlebar. Yes, this old school! Harley did not use auto-advance till 1965 also when electric start was introduced.



Ignitor chips mounted on aluminum plate which is also batteries' hold-down clamp. Plate is grounded with a dedicated ground wire. The spare chip is in case of emergency.


Dual outlet 1.5ohm Dyna coil using copper core HT leads. Harley 12v (points) coils were about 5ohm so this conversion gives a useful increase in spark energy.


The engine runs great. It's notably smoother with more power. The strobe timing light shows timing marks considerably more stable than with points. I increased the plug gaps .010" to .040".

Hope this is interesting.. Thanks.

 

[PetePan]

Oh, I supposed I should show the bike which received the upgrade ignition..

 

[debe]

Well done on your conversion.