Originally Posted by
ForcesR
You can inject oil into the crankcase through the crankcase vent nipple.
Use one of those plastic expendable syringes, and thread a tube over the crankcase nipple....
If you dont, the engine's parts in the cranckcase will be forced to move completely dry in there for several seconds. Can you imagine whats going on in there....
The thing is; There is a certain variation in piston-cylinder tightness from cylinder to cylinder.....
So, on some engines, if all 3 cylinders are very tight....there will be next to no lubrication in the cranckcase for a long time.
On others, if e.g. all 3 cylinders has a not so tight fit, there will be much better lubrication.
I had one engine, where you could hear the very distinctive ticking from the not-lubricated valves. (An FG-57). The other FG-57 was very well lubricated....... After injecting oil into the crankcase the ticking sound disappeared.