My stihl 021 chainsaw has acquired an excessive bar oil leak recently. What I've done...
-I blew the sawdust out of the air filter, outer components, behind sprocket cover, and flywheel. Cleaned up exposed bar oil to create a clean surface to make it easier to locate the first spot to show leaking oil. I filled the bar oil reservoir and tightened the cap thoroughly. I let the saw sit for about 9-10 days on cardboard. I checked the saw every day for the first week and no oil showed up. I checked yesterday and it was still dry. Tonight I picked it up intending to put the saw back together because it appeared to have been solved but I discovered a fair amount of bar oil leaked out in the last 24 hours. Observations...
- I am annoyed to admit that the oil is present all over the bar oil port area (side of the saw with sprocket), the oil elbow tube under the saw, and body of the saw below these two locations. Because the oil is so cohesive it will spread easily in any direction gravity allows so I am unsure if the underside of the saw body, which includes the oil elbow tube, is an origin of leaking or simply leaked upon by another source.
The pictures may be of help but I doubt it. I am hoping one of you may have some experience with this and can offer some direction as to what I can try next.
Thanks for any replies.
-I blew the sawdust out of the air filter, outer components, behind sprocket cover, and flywheel. Cleaned up exposed bar oil to create a clean surface to make it easier to locate the first spot to show leaking oil. I filled the bar oil reservoir and tightened the cap thoroughly. I let the saw sit for about 9-10 days on cardboard. I checked the saw every day for the first week and no oil showed up. I checked yesterday and it was still dry. Tonight I picked it up intending to put the saw back together because it appeared to have been solved but I discovered a fair amount of bar oil leaked out in the last 24 hours. Observations...
- I am annoyed to admit that the oil is present all over the bar oil port area (side of the saw with sprocket), the oil elbow tube under the saw, and body of the saw below these two locations. Because the oil is so cohesive it will spread easily in any direction gravity allows so I am unsure if the underside of the saw body, which includes the oil elbow tube, is an origin of leaking or simply leaked upon by another source.
The pictures may be of help but I doubt it. I am hoping one of you may have some experience with this and can offer some direction as to what I can try next.
Thanks for any replies.
