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I have a 00 5.3 LM7 that I am rebuilding. I have the harness from it but it is missing some connectors and I dont have the PCM for it.
I just picked up a LS2 wire harness from a 08 TBSS that comes with the PCM.
I have been searching around and only found a couple of threads that had any info about swaping out the 24x reluctor and putting a 58X in. I found this parts list:
12586481 - 4x cam plate
12600325 or PK12600325 - LS2 cover with grey sensor
12588670 - chain damper
12586768 - 58x reluctor wheel
is this what I need to do? is this the better route to go? I also will be putting a 4l80E behind the motor. Is that a problem with 08 LS2 harness?
(I understand that I need to have a machine shop put the reluctor on)
The reluctor wheel needs to be dead on perfect on the crank, it's not a thing machine shops generally do. There is a special tool that does the alignment. You'd be better off looking for a shop that does crankshaft reconditioning.
That is actually my next question of how to install this and not mess it up. Ive read you have to heat the reluctor up and then use the tool to put it on. Is this true?
OK, I worked with Alex Long, Bill L. (the GM engineer) in the 1980's when the patent was filed.
My work was directed at tooth acceleration measurement, also coil design.
This was very important in the R.E.
This IS THE REASON GM waited until 2006 to fit a 60-2 TW.
Original question :
There is a "top/bottom" to the TW.
The FLAT side faces the rear, not the counterweight as one would expect.
This also allows for an easier installation, NO sharp edge for the drop.
Yes "heat" with a torch after the alignment is made to the marked crankshaft.
The INDEX count is from the center of the CS (Gray) with thirteen teeth, counting the one at the sensor, to the "missing tooth" (tooth 59) so as to have that area "ahead" of the CS in the direction of engine rotation.
Once Index Alignment is verified, I weld the TW, "stitches", to the CW
So Do I understand this correctly? In the picture of 58 tooth wheel above, post # 8, where the 59 and
60 tooth are missing, I am to count 12 tooth ccw starting with tooth #58 (assuming #1 tooth is to
the right of red arrow) and that will be center of crankshaft sensor with crankshaft in TDC
#1 piston position. Thank You.
OK, the ECU will "see" a 60-2 Target Wheel with a COUNT of Wheel DeBug = 59.
Run Out should be checked to be lower than .002"
The missing tooth section (two teeth) is observed as ONE LARGE TOOTH.
Your count IS 13 teeth present between the "slot" area AND the Crank Sensor Pole Piece.
Count Thirteen (13) teeth located BETWEEN the Center of the Crank Sensor AND the missing tooth slot in the direction of rotation.
This works well with the GM OEM EMS.
Your ECU choice MAY have an object, as does mine, for the tooth Index.
What is your fitted EMS?
Lance
Last edited by pantera_efi; 12-05-2016 at 09:51 AM.
Reason: Deff's
OK, the ECU will "see" a 60-2 TW with a COUNT of WDBug 59.
The missing tooth section (two teeth) is observed as ONE LARGE TOOTH.
Your count IS 13 teeth present between the "slo"t area AND the CS Pole Piece.
This works well with the GM OEM EMS.
Your ECU choice MAY have an object, as does mine, for the tooth Index.
What is your fitted EMS?
Lance
I am very appreciative of your help in this, I am also a very simple man,
is it possible for you to point out in that photo in post #8 which tooth should be visible in the center of crankshaft sensor hole when crankshaft is installed and in #1 TDC position. If you could simply say count to the left or right 12 or 13
teeth starting with first tooth beyond space. I get flat side needs to point to the flywheel. Thank you.
11-30-2016, 09:06 PM
24x to 58x reluctor (Stand alone setup) 
