Cam sensor

[cut7]

I hope one of you 6.0 gurus will know the answer to this. How many pulses does the cam sensor generate for each revolution of the camshaft (not crankshaft).

[cut7]

150 views & no replies? Someone must know the answer.

[dannyboy950]

The cam sensor reads off of a pin pressed into the crank so your gonna see one pulse per crank revoloution irregardless of how many revoloutions of the cam.

Not shure what yer trying to figure out, but in 51 years of working on diesels I have never seen a diesel jump time. They are gear to gear no chain to streach and jump over.

I have seen gears break useually from trying to eat a bolt but once thaat happens the engine locks up because it can't turn with a foreign object wedged in the gears.

Just for reference the timeing gears are mounted on the back of the engine not the front.

This will at least get things started.

[cut7]

Originally Posted by dannyboy950

The cam sensor reads off of a pin pressed into the crank so your gonna see one pulse per crank revoloution irregardless of how many revoloutions of the cam.

Not shure what yer trying to figure out, but in 51 years of working on diesels I have never seen a diesel jump time. They are gear to gear no chain to streach and jump over.

I have seen gears break useually from trying to eat a bolt but once thaat happens the engine locks up because it can't turn with a foreign object wedged in the gears.

Just for reference the timeing gears are mounted on the back of the engine not the front.

This will at least get things started.

I appreciate your response. If I understand you correctly, you’re saying the cam sensor on a 6.0 is triggered from the CRANK? This begs the question: why is it called a “cam position sensor”?

The reason I ask is somewhat unique, but suffice it to say, I need to mimic all the signals a 6.0 feeds to the PCM. I know about the crank sensor, which — if I’m not mistaken — is a 58 tooth reluctor wheel. (actually, it’s a 60 tooth, but 2 of the teeth are missing; ostensibly to tell the PCM where TDC is.)

[dannyboy950]

The crank info is correct, the cam pin is rotated about 180 deg out but I don't remember exactly what deg. this allows the pcm to calculate cam crank relatioship.

I am not the best source of info on this, mebe one of the current FORD techs will chime in on this and give ya more accurate info.

A lot of the Ford techs like to prove me wrong so this should get the ball rolling for ya.

Sorry I got to go to the doctor for more tests. I wish ya luck.

[cut7]

Originally Posted by dannyboy950

The crank info is correct, the cam pin is rotated about 180 deg out but I don't remember exactly what deg. this allows the pcm to calculate cam crank relatioship.

I am not the best source of info on this, mebe one of the current FORD techs will chime in on this and give ya more accurate info.

A lot of the Ford techs like to prove me wrong so this should get the ball rolling for ya.

Sorry I got to go to the doctor for more tests. I wish ya luck.

Thank you again. Maybe someone else will chime in.

[dieselmac]

The cam has a pin pressed into the end of it. The CMP sensor will detect the pin as it passes and generate 1 pulse / cam rotation.

[Evel486]

dieselmac is correct. The CMP sensor reads one pulse per camshaft revolution. The CMP creates a magnetic field, the pin on the camshaft (not the crankshaft) breaks the field.

[cut7]

Thank you gentlemen, that's kinda what I thought.

So, to recap: The crank delivers 58 pulses per crank revolution, & the cam delivers 1 pulse per cam revolution (or in other words, 1 cam pulse per 2 crank revolutions).

Is that correct?

[dieselmac]

You got it.