(older style cam sensor/syncro )…..is the window correct for the sensor ? when the harmonic is (other pic) positioned at the 0 degree mark on the crank needle ?? …..94 explorer 4.0L OHV firewall is North in the picture .... older style last time i went for parts couldnt get one with a window

harmonic O mark for TDC

 

never touched the syncro but I did do a timing chain replace and would like to know before I put on the top end for reference \

……. someone said that these come apart and that they can change the sensor without removing the syncro but ive only seen the window less type taken apart