If you have ever had to remove your cam position sensor, drive, timing cover etc...on your 3.8l, 4.2l etc. and didn't want to buy the special little tool that they make just for this, then this little tip is for you!
After having had to do this myself, and not having found much information - on the web or from any books etc... -A friend of mine found this procdure in the "Identifix update
" Jan-Feb 2004 edition. It actually refers to a windstar with a 3.8L, but he swears that it will work with most OBD-II Ford products with Hall-effect type cam sensors. I used it on my 4.2L and it worked out just fine.
1. Bring the engine up to top dead center (TDC) of the compression stroke for cylider #1.
2. The engine needs to be positioned at 26 degrees AFTER
TDC. There will often be a large grove machined into the balancer at this point. If not, mark the balancer by measuring from TDC to 26 degrees BEFORE
top dead center. Take that measurement and make your own mark at 26 degrees AFTER
top dead center (TDC)
3. Drop in the synchronizer so that the leading edge of the vane is very close to the center of the opening of the housing (this is directly below the actual sensing part of the cam sensor)
4. Leaving the synchronizer loose, install the cam sensor and connect a voltmeter from ground to the DARK BLUE/ORANGE wire with the sensor plugged in.
5. With the key on, the voltmeter should read either '0 volts' or 'battery voltage'.
6. Turn the synchronizer back and forth to find the point where the voltage is just switching from '0 volts' to 'battery voltage'.
7. Once you find that point, tighten down the hold-down bolt.
If anybody would like the entire article, let me know.