Reaching out for an answer?
Does anyone know the size of this set screw that is the stop for the AJ133SC supercharger bypass valve?
Mine is not fully closing (engine off, no vacuum) so I wan to adjust it but the allen opening is on the blind side. gonna fab a tool to adjust it once I get a size for it.
It's a 2010 Jag AJ133SC. Thanks
Will, did you ever adjust this? I took a look at mine and can’t for the life of me figure out how to get an Allen-Key in there to adjust it. Why they didn’t put the key hole on the other side to make it easy to adjust is beyond me.
Yes, I cut off a T handled 4mm allen to make a small u shaped 4mm allen, that allowed me to turn it. But then my plastic rear coolant cross over gave out so the SC had to come off, did a good adjustment on it then.


