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36-1 toothed wheel postion?
Posted: Apr 13, 2006 11:18 AM
by terrybpp
Does the missing tooth point straight up at TDC? Or is there a certian degree of advance or retard it is supposed to be at?
Posted: Apr 13, 2006 3:38 PM
by T_C_D
The missing tooth is before the TDC mark... I'm guessing 60 degrees before.
Posted: Apr 13, 2006 3:56 PM
by terrybpp
The seperation between the VR sensor and the missing tooth is 60deg. I pretty sure the missing tooth is 10 deg before TDC. Anyone confirm this?
Posted: Apr 14, 2006 10:04 AM
by Boru
Explain the "60 degrees from the missing tooth to the VR sensor" please... related to???
The missing tooth needs to trigger the VR sensor more degrees before TDC than the maximum spark advance programmed into the ecu. 60 degrees is common but I'm not sure this is what Bosch used... pretty simple to measure.
The missing tooth VR sensor combo tells the ecu "You are 60 degrees BTDC, prepare to fire"....
Posted: Apr 14, 2006 12:28 PM
by russc
Looking at the 059 timing map, the largest timing advance is at 8% load and 3600rpm and above. The advance is 44deg BTDC. So 60deg on the wheel makes sense.
RussC