I'm trying to remove the pin so I can reinstall the timing chain cover after replacing the cover gasket, but I am having some issues. I've read all the threads I could find about removing the pin, but what I'm really after is the bolt size needed to thread into the pin.

I've tried a 6mmx1.0 bolt and the bolt width seems correct but the thread doesn't seem quite right. It starts to get hard to turn (by hand) very quickly after it starts threading.

I've had no problems threading in a #12-24 machine screw in there, but the diameter is really too skinny. The thread seems perfect, but then again it is an undersized screw so maybe that just makes it easier to thread.

Can someone please confirm whether 6mmx1.0 is the correct thread pattern for the guide pin? If it is, I will use more force in threading it.