bro, that just blows...

...if there ever was an excuse to totally build-up your Rappy engine, though... [img]i/expressions/face-icon-small-wink.gif[/img]

 

If mine fails, I am rolling it off a cliff and collecting insurance [img]i/expressions/face-icon-small-disgusted.gif[/img]

 

A full 686 is in the works. The Carrillo Rod will be purchased to battle that problem. I might take out insurance incase this happens again. I have many cliffs i know of that I can push it off of. [img]i/expressions/face-icon-small-smile.gif[/img]

 

You can also get a Hardness test done on the broken parts to make sure that the heat treat was done accordingly.

Smitty

 

The top of the piston is very clean. Is that blueing I see atop the piston? Do you have any pics of the inside of the piston?

 

The crank blueing indicates a LOT of heat.....I think the heat was transferred through the rod and into the piston by the looks of the top of the piston. The rod was the weak link. I think the engine may have been starved of oil. I asume the proper amount of oil was showing on the dip stick......check the screen in the oil line.....it is probably stopped up from when the engine ingested gears before.

 

Gary,

There is no picture of my piston in any of my pictures in this post. This is the only picture I've evr posted of the piston. As for the top it has some carbon on it. The oil strainer is free and clear. The oil level was between the marks and was checked the morning of the ride, it was within level until it went spewing out all over the dunes.

 

Do you plan on having your crank balanced with the heavier rod??

 

I plan on talking to the builders I choose to do my work. This will be a question that will be asked and I'll see what they have to say about it. I'll guarantee most of the bikes out there with carrillo rods were not balanced. I'm sure they were trued when put together etc. As long as the crank is put together correctly I don't feel i will notice much difference as far as vibration or similar due to the crank weighing a tad more than stock. I may be wrong, and those things will be discussed with the chosen few before I decide who I'm going to go with to rebuild the crank.

 

My apologies guys.....I took a quick look before and after looking again at the 2nd pic....it's clearly the crank. Maybe I was trying too mentally convince myself mine won't go as well..[img]i/expressions/face-icon-small-sad.gif[/img].