Wiggins sent me a ATC250R top end and complete
Engine for CSI and rebuilding here are some of my initial findings as I unbox the parts.
The cylinder is used it appears to be a 85 cylinder.
A few things I noticed right away was rust around the studs (
blue), this is normal how ever if you have a cylinder that is not installed you should be soaking the studs with PB Blaster so if they ever need to be removed you have increased your chances of removing them without damage.
Someone used what appears to be white silicone (
pink arrow) type sealant on the head gasket, this is a no no, who told anybody to put anyhting on the head gasket surfaces, if your factory service manual tells you to apply sealant to something then ok if it does not don't use a sealer on the head gasket!!!
See what was squeezed into the coolant passages, how much of that is now stuck in your radiator blocking coolant passages or wrapped around the impeller of your water pump, see where it was squeezed to the outside of the head, no doubt it also squeezed into the cylinder, wonder where that went, most would comfort themselves and claim it was harmlessly sent out the exhaust
The
green arrow is pointing towards the aluminum stuck to the cylinder walls from a seizure I have no idea what caused the seizure I simply do not have enough evdivence to work with to determine.
I will remove the aluminum with muriatic acid, give the cylinder a lite hone then measure to see what the bore is and if its straight.