Good News/Need Help Gapping CPS

[notdrphang]

Ok I got the timing thing figured out...I need to clean the motor up and put everything back together. The only thing I am stumped on now is gapping the CPS. I went to autozone and bought the only angled set of feeler gauges I could find "kinda looks like a long check mark" oddly enough they were (Valve Tappet Feeler Gauge) but I cound not find .03 or .76mm. Also I am confused on what exactly I am gapping and how I am sposda properly reinstall the thing. My friend gave me a service cd for 1995 Fords and it has 3.0 3.2 info, but I can not find a darn thing about the CPS

Thanks for all the help guys...it is all starting to come together!

 

[SHOnuff93]

to gap it, get yourself a .030 inch feeler guage, place it between the cps and the metal ring on the timing gear, and then tighten the 2 cps screws.

 

[luigisho]

What you do is some simple math. Take 2 or more gauges that total the correct gap and combine them. That's why the feeler stuff usually has an easy to remove little screw/bolt so you can combine different sizes for different apps.

Look on the crank for the overlay wheel on the crank. It has 3 equally spaced shutters that spin under the crank sensor. Replace the sensor and leave it loose so you can gap the distance (stick the gauge between the sensor and the shutter) between it and the shutter wheel. Does this make any sense?

 

[notdrphang]

so I should combine .020 and .010 for .30?

 

[luigisho]

ding..ding...ding We have a winner! Yes. Now go get that bad boy up and running.

 

[projectSHO89]

Actually, we should add .010 and .020 for a total of .030.



Steve

 

[rangerj]

There are three sections on the metal ring that runs below the CPS. As it is a curved surface it is best to use a "wire" type feeler guage, like a spark plug guage.

However, since you have the flat type feeler guages they will have to do. Check the gap at each section of the metal ring. This means you will have to turn the crank to position each section under the CPS. If the measurements do not come out the same the metal ring may be distorted or bent. This is why you check all three sections. (thanks SDPATT, I remembered)

Since you are putting two guages together to add up to .030, be extra careful with the measurement and make sure the two are flat against one another.

Hope this helps, rangerj

 

[projectSHO89]

Actually, since the measurement is made on the outside circumference of the timing ring and the flat surface of the sensor face, a flat feeler guage works perfectly.

FWIW, all you're really doing is making sure that the vanes of the timing ring won't come into contact with either surface of the crank position sensor. It is a Hall effect type switch and relies on the interruption/removal of interruption of a magnetic field in order to sense the crank postition.

I've worked with these sensors for years in mainframe printers and can assure you that the gap doesn't affect the timing of ths signal. Oh the other hand, an improper gap that allows physical contact between the sensor and the rotating interrupter will destroy the sensor very quickly. Setting the gap to .030 will keep everything from touching with plent of room to spare, so use that gap and be safe.

Steve