ooooer

as my knoweledge is so poor on exactly how a 2T engine works, does your 2T oil lube the crank or is it done with some other trickery
_________________
MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold

Now I'm no expert, but the oil is mixed in with the fuel. This is then sucked into the crankcase via the carbs. Here the petroil lubes the crank. Then the mixer is forced up the transfer ports, into the cylinder and BANG.


I'm assuming you know the rest......

cool thanks, just what i wanted to know.
_________________
MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold

this shows the basic principle of a 2 stroke, note how the downward cycle of the crank forces the mixture into the cylinder (via the tranfer port, not too clear here due to the 2d nature of a picture).

Best 2 stroke how it works thing ever http://www.eric-gorr.com/twostktech/2techbasicprincipals.htm;

"In the crankcase the pressure is below atmospheric producing a vacuum and a fresh charge of unburned mixture gasses is flowing through the reed valve into the crankcase."

And there's the crank lube in the mixture. It has to be that way as you can't run a sump like a 4 stroke;


Normally the oil sits in a bowl just below the crank
sorry about the pushrod(!)

But far more elegant and never researched properly;



If the pictures don't work http://www.keveney.com/Engines.html is where they're from
_________________
Please do not PM me technical questions, if you can't find it on the Forum start a thread

not a bad site that mate, if your into that sort of thing
_________________
If you dont like the way that i ride.....Stop trying to keep up!!!!!

What the hell is going on there Fontyyy! We have a diagram of a BSA C10L motor running at full chat, a 2 stoke that was designed in the year dot and one of them there rotary engine things that no one could decide wether its capacity was only one of the chambers or all 3 lol
_________________
If I have to take the carbs off once more...

StephenRC45 wrote:one of them there rotary engine things that no one could decide wether its capacity was only one of the chambers or all 3 lol

Interesting you mention that as us 2 stoke boys are lucky they (motorsport governing bodies) don't count the crankcase (and chambers??) as part of a 2 strokes capacity - as they argueably should -, otherwise the 4 strokes would have always dominated any race class catagory with a capacity limit.
_________________
Please do not PM me technical questions, if you can't find it on the Forum start a thread