What shall we all bet the problem will be???...lol.

It appears that the factory did actually install the piston in backwards with the arrow on the top of the piston pointing to the Intake and Not the exhaust as it should have...Really Bad mistake made by factory !!!

It resulted in the top piston ring "pin" wearing itself away against the exhaust port of the cylinder/jug eventually breaking off and causing a huge gouge in the piston and cracking the cylinder/jug and thus seizing on me.
When rebuilding a standard V8 type 4t the arrows go to the intake, but on these little engines there are pins, and those pins go on the intake side no matter what the arrow points to, :poop:, the piston doesn't even need an arrow.
 
Just to add to this statement, if you do find your piston in the wrong way, don't remove it until you have new clips to put it back the right way.

With the crack in the cylinder and the gouged out piston, Why in the world would I even consider turning that piston around...lol...The entie jug and piston is toast for me...lol...When I do get around to repairing this, at the very least, the things listed below in a previous post I made will have to be replaced.

It's gonna need a new jug and piston along with the usual needle bearing and wrist pin with clips for sure....It's the "what am I missing here" that is a mystery to me since I can't find the cause of this even when trying to shake out anything from the bottom end, no nasty rattles sounds or pieces falling out etc, just some accumulated oil is all.
 
It appears that the factory did actually install the piston in backwards with the arrow on the top of the piston pointing to the Intake and Not the exhaust as it should have...Really Bad mistake made by factory !!!

It resulted in the top piston ring "pin" wearing itself away against the exhaust port of the cylinder/jug eventually breaking off and causing a huge gouge in the piston and cracking the cylinder/jug and thus seizing on me.
This makes the most sense as of now. I hope you'll break the engine down even more and possibly rebuild it. I know you love that Zeda 80 triple. What the f*** does the 'triple' mean while we're here?
 
With the crack in the cylinder and the gouged out piston, Why in the world would I even consider turning that piston around...lol...The entie jug and piston is toast for me...lol...When I do get around to repairing this, at the very least, the things listed below in a previous post I made will have to be replaced.
I was elaborating for any new guys that might look into the way the thing was put together. Not for you.
 
Ahhh, OK...I get it...lol.
Do you have a detailed pic of the crack in the cylinder? Also do you have a pic of the piston when it was seized in the cylinder? I'm just curious, as I took a 6month course on failure analyst's for engine failures & metal failures. I'd would like to see them pics & study them a bit.
 
Do you have a detailed pic of the crack in the cylinder?
Yes its already posted but will post that one or two pics here again

do you have a pic of the piston when it was seized in the cylinder?
Nope, didn't take one because I saw no need...A stuck piston is all you would have seen...lol...Not the cause or any other gory details...lol.

You should see the crack on the inside of the cylinder going horizontal while going upward from west to east, left to right, in these two pics.

image1.jpeg
image2.jpeg
 
Yes its already posted but will post that one or two pics here again


Nope, didn't take one because I saw no need...A stuck piston is all you would have seen...lol...Not the cause or any other gory details...lol.

You should see the crack on the inside of the cylinder going horizontal while going upward from west to east, left to right, in these two pics.

View attachment 177361View attachment 177362
Ok thanks, I should have read back thru the thread further, I just wanted to see the piston in relation to the cylinder. Basically where exactly the piston was seized at.
 
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