Is shielded and sealed 2 different things or 1 and the same?
What caused this 064 to blow up?
- Thread starter Yotaismygame
- Start date
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Yea?
Justsaws
Addicted to ArboristSite
Sealed bearings have a seal that prevents more filth, moisture, etc. from entering the bearing than a shielded bearing that has openings allowing for filth, moisture, etc. or other stuff to enter the bearing. There is often a gap between the shield and the inner race, no friction from the interface like there is in a sealed bearing, friction galore comparatively speaking.
BuckthornBonnie
ArboristSite Guru
The terms are used interchangeably here, but the above post has it right.
As Doc and others said, Stihl tried these shielded bearings for a while. I have an 036 with ‘em and have rebuilt 5-6 1125/1122s where I removed them. Some had nasty build up around the shield and seals; others seemed totally fine.
The crud in the bottom end of the crankcase comes from somewhere it shouldn`t, guess where.
Yotaismygame
Juiced Saws #GetJuiced
Crank bearings are completely fine. Crank is slightly rusty. Are we stumped?
No I still think its the rod bearing or a side bearing.
Yotaismygame
Juiced Saws #GetJuiced
Checked the rod bearing. Perfectly fine. Side bearing?
Pioneer Guy knows exactly what happened and is watching this thread and just waiting to see the responses! @pioneerguy600 alright man weigh in already!
Could be the main support bearing on the side of the crank .
Yotaismygame
Juiced Saws #GetJuiced
When I said "crank bearings" I meant Crankcase bearings..
Yotaismygame
Juiced Saws #GetJuiced
Both pins are still in the piston. Rings are fine.
The case bearings that support the crank on the left and right side to be clear yes!
That saw ate something that didn't agree with it.
Yotaismygame
Juiced Saws #GetJuiced
That's what I'm thinking. Missing cylinder bolt, makeshift fuel line, and a 1128 clutch.......you get me.
Hey Wolf, I get more kicks out of watching and reading posts from others these days, yes I know what happened but since knowing what won`t fix the damage I just keep stuff under my old hat. I could load a half ton with busted crankcases and know what damaged each one. How many chainsaws have I worked over since 1965.? Even I would like to know that number.
Which cylinder bolt was missing?
Yotaismygame
Juiced Saws #GetJuiced
Back left
Saw Fixr
ArboristSite Operative
internal muffler screw got loose and sucked In thru the exhaust port... then got lost when It blew the hole in the case.
What did I win?
What did I win?
