Hi all

Just wondering if you can buy a compressor nut as a separate item for a jetcat P60. I note for some reason the purple anodising has been rubbed and there is a bit of scarring aroudn the nut from the hex starter. I will be doing the oring as well.

Other than alignment issue, any idea what might have caused it?

J

Normal wear.
The starter motor starts spinning before the Bendix extends out to the nut. So there is some skidding every time the starter motor is turned on until the starter motor RPMs match the turbine RPMs, for both starting and cool down.
Letting the O-ring wear down to far will really chew on the nut.

On some other engines the nut contains a magnet for the RPM sensor so in that case a plain nut won't work. Not sure about Jet Cat.