M/S EDIS toothed wheel set-up

is that wheel from ebay ?

 

Thats where i ordered mine from

 

You need to beef the bracket up considerably and I have been strongley advised against welding the wheel on as my engine builder who looks after lots of competition cars has had several failures on welded wheels.

 

how would you go about fixing it on?

 

And curiously.... how would it fail? Broken welds? I think not!!!

 

Stephcasscar..

Sensor must be mounted very close indeed(less than a mill) or so?

Thats why wheel must be centred correctly or it want work properly

also bracket holding sensor must be chunky

 

Yeah sensor has to be about .5mm from the teeth so creat care must be taken to ensure the wheel is concentric with the pulley or the teeth can be faced on a lathe.

I think the vibrations and/or rapid acceleration of the pulley causes the area arround the weld to suffer a fatigue fracture. I don't qwite agree with the principle but my engine builder has had a few fall off so i'm not going to risk it.

I'm planning to mount the wheel as a shrink fit on the shoulder behind the crank pulley and bolt it on for security using 3 or 4 M6 bolts.

 

I was just going to say that, honest

I've been told that a good rule of thumb for the sensor bracket is that if you can't lift the engine with it, it isn't sturdy enough.

 

Cheers for the advice chaps,

Yesterday I made the bracket out off 3mm mild steel, its strong but I wouldnt lift the engine with it, so I think its best if I make it again.

I will get some 5mm plate tomorrow and make it up again so it will be strong enough.

0.5mm is darn close, no room for error then

 

Turning down the teeth on a lathe aint a bad idea actually. Would it likely affect the sensor?

 

Facing the edge of the toothed wheel will jsut ensure that the trigger wheel is perfectly concentric to the pulley, probably only need to take off 1 or 2mm max

 

I think i will do that actually. I mean, i can get it pretty accurate... think the lathe may be the best option

 

Make sure you get the edis wheel timed up correctly, i believe it locks the timing while cranking (10dbtdc?) so if you get the position wrong the igntion timing at cranking will always be out.

 

How do you mean? Its position relative to the sensor at TDC?