Ford edis with megajolt

[airtractor8]

Originally Posted by Kirk Harrell

I used a 6 cylinder plug on a 4 cylinder EDIS. It has all the right pins and it clips securely in place. Just trim the key tabs from the ends of the plug. Use a little more care when assembling connector to module. Once it snaps in place it ain't going anywhere.

SHIPCHIEF For new parts, check this link:
http://trigger-wheels.com/store/cont...n-uk/p190.html

Thanks guys. Great information.

I'm thinking at this point I will probably just get an 8 cylinder plug new from your side of the pond (half the price of UK) and cut the keys of it as Kirk suggested.

Be nice to have one that has NOT been pre wired like this one or a source for replacement female pins perhaps? Any Ideas?

[Kirk Harrell]

The pre-wired connector is not as elegant, and there is a bundle of unused wires, but if I have to use one somewhere really important, I like to solder with eutectic solder and cover with high quality glue lined heat shrink.

[lr172]

Originally Posted by airtractor8

I had an inside ring for the large pulley made yesterday at the local Water Jet shop.
It was easy with Dan's Cad drawing I did have them increase the OD to 8"to allow enough meat on the edge for me to countersink the holes for 8/32 screws. Made it from .125 Mild Steel. It cost me all of $37
Will probably get it plated before fitting.




Here is a test fit on a flywheel I found lying around. The hole centres line up right in the middle of the flange bosses and it has just the right amount of clearance from the radius on the inside of the pulley.




As far as sourcing EDIS components are concerned, I am having a lot of trouble finding a 4 cylinder 12 pin module connector plug.
Does anyone know where I can get a new one? There seems to be plenty of the 8 cylinder type but these won't fit. The keyways are different.
I managed to get a module of ebay and it seems that the reluctor plug and coil plug are plentiful but non genuine.
I would go to the Wrecking yard for a used one but this system was not fitted to Aussie cars unfortunately

I am curious how you are planning to center this ring. I am sure you know this, but the air gap between the sensor and the teeth generally needs to be in the .010 - .045 (varies by sensor) range for each tooth (I don't know requirement for the EDIS module). Tighter is better, but you have to leave some room for movement with worn bearings. I would be a little concerned that the flange may not be exactly centered. I would expect the tolerance for the pulley to be a tad loose and there would be no precision tolerance required for interior of the cast boss. IF that flange is machined, that's a different story, but you still don't know that tolerance. Maybe a michanest would know.

Let us know how it works out.

Larry

[airtractor8]

Originally Posted by lr172

I am curious how you are planning to center this ring. I am sure you know this, but the air gap between the sensor and the teeth generally needs to be in the .010 - .045 (varies by sensor) range for each tooth (I don't know requirement for the EDIS module). Tighter is better, but you have to leave some room for movement with worn bearings. I would be a little concerned that the flange may not be exactly centered. I would expect the tolerance for the pulley to be a tad loose and there would be no precision tolerance required for interior of the cast boss. IF that flange is machined, that's a different story, but you still don't know that tolerance. Maybe a michanest would know.

Let us know how it works out.

Larry

This from the OP in regards tolerances.

Originally Posted by Frank from Quebec

It seems to be very accurate with a timing light on the chuck and very tolerant to sensor to Wheel clearance, up to 1/4 inch no problem and no shift in timing.

Hope you like it and open to comments

Frank

It doesn't seem like the reluctor to pickup clearance will be a problem. Yes the mounting surface has been machined by Lycoming.

I spoke with a machinist today about getting the holes drilled in the flywheel.
He was more worried about how accurate the holes in the wheel were and didn't see a problem with getting his part of the job done per the drawing on a CNC machine.

[SHIPCHIEF]

I have one 12 pin connector, as removed from a car. It has about 2" of wire to the cut off point. I think the connector could be disassembled and new pin sockets crimped onto my wire, then inserted into the old shell. I (like Airtractor8) ask: Does anyone know what kind and size connector?
I would have a lot more confidence with new hardware.
Here is site that shows the disassemble of the EDIS connectors:
http://www.ken555.plus.com/gtm/connectors.html
A link to Megasquirt's EDIS page:
http://www.megamanual.com/ms2/EDIS.htm

[SHIPCHIEF]

Well!
I just got a chance to take the cowl cheek off my T-18, it has a small diameter pulley like my RV-8 does. There is very little room for a timing wheel or a stock Ford EDIS pickup in there.
The only choices ( 4 cylinder Lycoming) appear to be the 'outside the flywheel pulley" timing wheel or the magneto replacement pickup when equipped with the small diameter pulley flywheel.

[airtractor8]

Originally Posted by SHIPCHIEF

I think the connector could be disassembled and new pin sockets crimped onto my wire, then inserted into the old shell

I may have found a few sources for new module pins.
I think this is their name and part number: Ford Wedgelock Terminals E7EB-14487-AA .060" Female Diameter Pin. Available on ebay here http://www.ebay.com/itm/10-Ford-Wedg...item51e0525b6d
The same guys have a great price on NEW 8cylinder module plugs(you will have to remove the keys to use on 4&6 cyl ) Here:
http://www.ebay.com/itm/400324998067...MakeTrack=true




OR these:

http://www.autoparts-factory.net/pro...tang-1669.html
These are from an 86-09 Mustang Oxygen Sensor plug. They look strikingly similar and are from the same era vehicle.Only available in 200pc lots
These guys also have lots of pins. Some with dimension drawings. The TE1233 could be it?. There is others http://parts.harnessmaster.com/?cate...Lugs&pictures=




I can't tell you how much time I have wasted on this small Item but I just HATE having to join cables on a new installation and especially an ignition system...in an aeroplane

[SHIPCHIEF]

I took this pull from the Ranger truck enthusiast's site after airtractor8 provided the Wedgelock PN:

The .060 can be had at CARQUEST in packs of five. They have a Dorman number of 85345 (M) and 85346 (F)
links:
http://www.summitracing.com/parts/rnb-85346
http://www.summitracing.com/parts/rn...FepAMgod_FkALQ

DORMAN LINK:
http://www.dormanproducts.com/itemde...4&SEName=85346

I can run down to Carquest with the EDIS module in hand and see if they have these pin connectors.

[SHIPCHIEF]

I just ordered an Electroair mag hole timing sensor;
http://www.electroair.net/experiment...ming_kits.html
My RV-8 and T-18 both have the small belt pulley flywheel, so the Electroair unit seems the best option. They were very responsive. I called and left a phone message Saturday evening, I received the return call Monday morning, clarified the Lycoming non impulse application and now it's on the way.
now to adapt a 36-1 trigger wheel.

[rv7charlie]

Originally Posted by DanH

Best answer I've seen is right here:

http://www.vansairforce.com/communit...6&postcount=44

For the tests done at 8500 ft, those aren't at 75% power, are they? How much affect on performance would there be if they were conducted at cruise altitude, using true 75% power rpm (2700 rpm) instead of 2300 rpm? Is that 400 rpm spread enough to significantly affect the timing advance needed?

Were these tests flown in a Rocket? If so, wouldn't the RV airframe's 'drag wall' be affecting the numbers a bit at those speeds? (I think that was mentioned somewhere else in that thread.)

Charlie