Question I never gave much thought about?

[suzuki40]

I know how a 4 stroke crank gets its lubrication.<br />But how in the world does a 2 stroke crank get it's lubrication?<br /><br />Suzuki 40

 

[lakensea]

Re: Question I never gave much thought about?

The oil is mixed with the fuel which all passes through the crankcase on its way to the combustion chamber.

 

[suzuki40]

Re: Question I never gave much thought about?

I thought about that...but then I wondered, why would you run gas over your crank for lubrication? I thought that the bearings may have been self lubricating? but what you said could only be the way it would work.<br /><br />Suzuki 40

 

[JasonJ]

Re: Question I never gave much thought about?

Most 2 stroke cranks run on either needle or ball bearings, so the oil that is in the gas is enough, and the pressure in the crankcase force the gas/oil mix into all the bearings. A four stroke crank bearing relies on a bearing system that uses oil as the actual bearing by suspending the crank in a thin layer of oil.

 

[roscoe]

Re: Question I never gave much thought about?

http://www.keveney.com/img/twostroke.gif

 

[93bronco]

Re: Question I never gave much thought about?

nice link pic!!

 

[bubbakat]

Re: Question I never gave much thought about?

cool rosco

 

[roscoe]

Re: Question I never gave much thought about?

You have to thank SLOOPY for that one, I dug it up from one of his old posts.

 

[SeaMasterZ@aol.com]

Re: Question I never gave much thought about?

I believe it was Joe Reeves that said that there is a small hole in the piston that forces lubed intake charge into the bearing, "force lubricating" it<br /><br />I cant be certain tho, if ya didnt say that Joe, sorry, but I tend to take your words as if they were written into stone by fire, lol