anyone with access to a 540i pls check something for me

[clutchplate]

Hi Guys

if anyone has an e39 540i... if you can please take some pictures of your crank sensor, the sensor on the gearboxes bellhousing... I will really appreciate it.

just trying to figure out if the machine shop drilled the sensor hole for the gearbox in the correct place...

Thanks a million !

 

[clutchplate]

:wave:

 

[StK]

autobox I am presuming?

This any help http://www.realoem.com/bmw/showparts.do?model=DE62&mospid=47548&btnr=24_0720&hg=24&fg=15 ?:thumbsup:

 

[clutchplate]

nah, manual box.

I need acctual pictures. allready know what the box looks like lol. just, I'm pretty sure my sensor might be mounted incorrectly.

 

[zaleonardz]

Your sensor or the gearbox sensor clutchy :slap:

 

[WerriesM5]

I think the most accurate way of telling if it’s in the correct position is to remove the crank sensor and have someone turn the engine and look through the hole till the home position passes, (the spot with the 2 missing teeth) then count the number of teeth that passes till the engine is on TDC.
I will have a look tomorrow at work it should be the same on my M5,, Will also take pics.

 

[clutchplate]

schweet ! .. yeah, M5 is the same ..
I thought about doing that, but then I still wouldn't be certain as to wether the sensor is mounted correctly.. as in, too high up, sothat it only catches half the tooth instead of the entire thing..

I connected my osciliscope to the sensor, and the signals are only about 1volt pulses, however, the frequency does change fine when the car is revved.. so I dunno. must be placement or the flywheel. one of those two things.

 

[WerriesM5]

I don't think the flywheel will do that, and also if the angel af the sensor is out, (turning the sensor in the hole), it will also give a weak signal...

 

[rick540]

If I can find the time and will to lift my significantly heavy E39 540i significantly far off the ground tomorrow, I would be happy to take the pics you require, will even take the sensor off at TDC so you can see the teeth profile.

Is it a Hall or normal magnetic sensor? Hall sensors only monitor a change in magnetic flux between two points and require different measuring techniques.

Magnetic sensors will generate a voltage

 

[FJD]

Hi Guys

if anyone has an e39 540i... if you can please take some pictures of your crank sensor, the sensor on the gearboxes bellhousing... I will really appreciate it.

just trying to figure out if the machine shop drilled the sensor hole for the gearbox in the correct place...

Thanks a million !

I'm taking my car for wheel allignment this saturday,so while it's on the lift I will take a few fotos and post them here.

 

[clutchplate]

schweet thanks guys ! any help appreciated.. I'm gonna take pics of my sensor justnow and post it here in the meantime. then if anyone has pics ready, will be easy to spot a difference.

Thanks allot !

 

[clutchplate]

hmm, any of u guys ever manage to snap some pix ? just curious, hehe

 

[WerriesM5]

Whoops... :mmm: sory man that sliped my mind....
But I have got good news... I am taking out a e39 M5 box 1st thing at work tomorow morning

 

[clutchplate]

lol, serious !! kickass dude ! will reply to your PM.. just came back from drags..

 

[WerriesM5]

Hi got those pics for you...

 

[clutchplate]

Werries ! you rock dude ! thanks a million.. now I can take some measurements of mine and compare .. !
I shall report back as soon as I get a chance..

 

[WerriesM5]

Any news on your gearbox yet???

 

[clutchplate]

Howsit man, almost lol. busy moving at the moment :/ driving with the mazda..
will be leaving PE for the last time on wednesday morning, and then I am up here for good... so then I guess on thursday or friday I will quickly jack the sucker up and double check my measurements.. :/ blegh.

will let you know asap, btw, thanks once again for the pics/measurements ! you rock dude !

 

[clutchplate]

Thanks Werries ! .. finally got a chance to measure everything today.. it seems like my sensor is 1-1.5mm offset vertically. but since it is such a small difference, I guess the only way to know if it is my bellhousing or flywheel is to take off the gearbox and fit the old auto gearbox's bellhousing and see if it still misfires... if it does then its the trigger ring on the flywheel..

didn't have energy to do that today, so will do it in the week.