I discovered there are castellated nuts fastening the cap to the conrod of my CS1.
There are no split pins fitted.
It appears to have run for an extended time this way, going by the sludgy black stuff in the sump.
I'd like to fit some split pins if I can.
One of the nuts has a slot that lines up with the hole in the conrod bolt.
But the other bolt does not have a hole visible - likely just not lined up with the nut's slot.
Trouble is, the nut is very tight indeed. I could only get it to budge slightly, in the direction that would make it tighter.
I'm not to keen on loosening the nut to get it lined up with the hole.
Am I safe to continue running the engine as is, without the split pins?
Any suggestions for lining up the hole with the nuts' slots?