Can someone tell me what size torx bit to use to take cover off to change primary chaincase oil? Thanks

 

size T27

 

Have fun with that one. Mine was so tight I messed up 3 bits trying to take it off. So I said to hell with it and just changed out the primary for a chrome one. I even tapped on them for a while with a hammer and they still would not wink.

 

I got all the bolts out except the top one. It has snapped 2 bits in half and bent one so far.

 

Good luck!

 

impact driver to loosen tight screws. Saves bits.

 

I forgot to mention. That is what busted two of the bits. They weren't cheap HF bits either. One was Craftsman and the other was Snap-On. The first one I bust with the ratchet was also a Craftsman.

 

harley uses torx PLUS bits.(google it) everyone has a problem with the torx. most of us just change them out when we can. i took a look further and bought a set of torx PLUS bits and the problems go away. i understand that gm uses them also. would be nice if they told you. good luck.

 

Thanks for all the info! Didn't know they would be such a pain!

 

Unfortunately, someone somewhere has had problems with every type of screw man has invented. I have been fortunate to date with torx, but I pray to my god every time I approach one! Think calm thoughts and take care.