I just found one at Harbor freight ($7 for a set of sockets). I looked everywhere and all I could find was E6 and above, which was also the case at sears in my area.

 

I would check autozone or advance auto parts. I think that's where I got mine

 

or the ozone

 

So your saying if you just run the optical portion, that it is ok to completely seal it up?

Also here are pics of me taking mine apart. This a GM unit by the way.

This is what I used to take the bolts off. I purchased this at local harbor freight/china mall I believe it is the E-4 socket that you need, if I remember correctly.


The yellow are the bolts.



At this point I had to carefully pry the opti apart. (I used a flathead screwdriver and twisted it in between certain areas, to seperate.) You can see that also seperated the plastic cap and rotor and the other white plastic portion.


Here is the vented cap removed.


Here is a pic of rotor after underneath after cap removal.



Here is my rotor after removal. Also I dont care what anybody says my screws were loctited from factory. There was residual amount of dried factory style loctite on bolts along with optical wheel where screws were removed. (It is always better to be safe than sorry, but I wanted to add what I found, because I have heard that they never get loctited from factory)


Here is removal of next portion after rotor.


This is a metal cover that comes off by hand.


Optical sensor and wheel. (note that the sensor is a mitisubishi sensor that I have heard is used in other vehicles.)


In this case I am replacing the rotor with a washer that will be drilled . (this is for LTCC coil conversion) I measured the thickness of rotor to try mimic that with a washer.

 

I asked my mechanic if he could fab up some sort of vent system on my unvented opti while he had the front of my car all over his shop. He said he would check into it.

On a side note, are pittsburg tools good? There's a harbor freight around here and saw most of there tools are pittsburg and I didn't want to by a cheap husky like tool. Do they compare to craftsman?

 

Harbor freight is cheap crap usually. Craftsman has better but still sub par quality on a lot stuff now days also.

Harbor freight can be hit or miss. I have had things that lasted and would not die, that were a great deal. I have also had things that I plugged in and it died within minutes. The good thing about harbor freight is that you can get odd job tools cheap.

 

What size tool did you use to remove the rotor screws?

Thanks!
mike