MCCULLOCH The official McCulloch thread

[Bigmac]

Just kind of thinking outloud, a seeping bar oil leak..unless then oil level was above the the pulse port of the Oiler(and that is above 3/4 full) would have to be stuffer leak? If it was the Oiler gasket it would be an air leak until
The auto Oiler was primed? And if the Oiler was an issue it would only leak what was in the Oiler? Or it was stored bar mount up? Not trying to sound like a jerk

 

[Frank bierce]

Picked up a decent looking Mac 3-10E. Now just have to build a new battery pack for it.

 

[Dub11]

I found today after my 125 sat for a few months that I'm getting bar oil in my crankcase. What would be my first course of action?

Ship it to me for proper disposal before it trys to kill ya.

 

[T.Roller]

Just kind of thinking outloud, a seeping bar oil leak..unless then oil level was above the the pulse port of the Oiler(and that is above 3/4 full) would have to be stuffer leak? If it was the Oiler gasket it would be an air leak until
The auto Oiler was primed? And if the Oiler was an issue it would only leak what was in the Oiler? Or it was stored bar mount up? Not trying to sound like a jerk

It was on a shelf no bar oiler had whatever was left from the last tank so I'm sure it wasn't much

 

[T.Roller]

Ship it to me for proper disposal before it trys to kill ya.

Haha I don't even like you

 

[Dub11]

Haha I don't even like you

Even better. You can be guilt free when it heads south.


On a side note does it pressurize the oil tank when running? Not sure if that was asked.

 

[Bigmac]

It was on a shelf no bar oiler had whatever was left from the last tank so I'm sure it wasn't much

Did it want to hydro lock or just burn bar oil? If it was just burning bar oil did it clean up or continue?

 

[T.Roller]

Did it want to hydro lock or just burn bar oil? If it was just burning bar oil did it clean up or continue?

Didn't even start it honestly just pulled it a couple times and seen bar oil build up on the muffler

 

[PogoInTheWoods]

Would be a little more difficult than usual to pull over if it had much oil in the case. Ya sure it's not just residual mix?

Pull the muffler and drain it out the exhaust port to see what you actually have in there..

 

[Bigmac]

Didn't even start it honestly just pulled it a couple times and seen bar oil build up on the muffler

Your sure it’s bar oil? And is it coming out the port? Or is it just around or on the muffler? It kind of common to have some old residual mix to come out of the muffler, if it’s raw red bar oil you have an issue

 

[T.Roller]

It's definitely bar oil

 

[heimannm]

I have a 550 that does the same thing if I leave the oil tank full. I actually have to remove the spark plug and pull it over a few time to clean the cylinder before I try to start it. The oil tank on that saw is not on the opposite side of the stuffer like it is on the SP models. Though I can't explain how the oil is getting through the automatic pump, it does manage and yet the saws will always start and run so the stuffer (crankcase bottom) is in good condition.

Mark

 

[Bigmac]

As you can see the only port open to the crankcase is the pulse port, if the gasket was bad and the oil level is full it can leak directly into the crankcase, also if the auto Oiler leaks oil into the pulse port it can get into the crank case, but only the amount of oil that is in the Oiler, or if the stuffer is seeping oil, crack or hole,it can get into the crank case.

It's definitely bar oil

 

[T.Roller]

View attachment 126865 View attachment 126866
As you can see the only port open to the crankcase is the pulse port, if the gasket was bad and the oil level is full it can leak directly into the crankcase, also if the auto Oiler leaks oil into the pulse port it can get into the crank case, but only the amount of oil that is in the Oiler, or if the stuffer is seeping oil, crack or hole,it can get into the crank case.

10 4 thank you

 

[Bigmac]

I have a 550 that does the same thing if I leave the oil tank full. I actually have to remove the spark plug and pull it over a few time to clean the cylinder before I try to start it. The oil tank on that saw is not on the opposite side of the stuffer like it is on the SP models. Though I can't explain how the oil is getting through the automatic pump, it does manage and yet the saws will always start and run so the stuffer (crankcase bottom) is in good condition.

Mark

Mark have you tried storing it a little low, so the oil doesn’t reach the pulse port? That gasket could seep without causing a major vacuum leak

 

[sawfun]

How about the oil pump push rod hole where the rubber bushing seal is. Maybe that there is an area that is allowing oil to find it's way into the crankcase.

 

[Bigmac]

How about the oil pump push rod hole where the rubber bushing seal is. Maybe that there is an area that is allowing oil to find it's way into the crankcase.

Ya that is a possibility as well, it would have to leak through the stuffer gasket.

 

[Bigmac]

It it was me I would pull the oil tank and stuffer look for corrosion or possible pin holes in the stuffer, check the stuffer gasket and tank gasket for signs of leakage, the oil pump gaskets are hard to come by, so I don’t take them apart unless I have to! The tank and stuffer gasket are available, I buy kart stuffer gaskets and add the manual Oiler hole, they are super cheap in a ten pack!

 

[Yukon Stihl]

Picked up a decent looking Mac 3-10E. Now just have to build a new battery pack for it.

I need a battery pack as well...
Where do you get the battery's to build the pack?
Thanks

 

[heimannm]

I think the odds of a problem with the crankcase bottom (stuffer) are small. The oil is getting through the automatic oil pump via the impulse route.

Around here a "Batteries Plus" store can make up the replacement cells.

Mark