What caused this blown piston and how do I prevent it?
#11
#12
#13
I dont think valve spring is the issue here.
Notice those thousands of little marks in the surface.... THAT is from detonation caused by 87octane.
The ringlands and edges are notorious for breaking off after significant detonation weakens them. I would guess the outer edge chunk broke off and punctured the top of the piston as it probably got caught between the valve and piston top.
Notice those thousands of little marks in the surface.... THAT is from detonation caused by 87octane.
The ringlands and edges are notorious for breaking off after significant detonation weakens them. I would guess the outer edge chunk broke off and punctured the top of the piston as it probably got caught between the valve and piston top.
#15
Mike
#16
#17
Thanks y'all! Sorry I've been away.
I know that it's bored over, but I also had the block and heads decked slightly to help. Although I'm dying to get a programmer.
I re-used the same injectors and throttle body, but the injectors got juggled into new homes.
The valve seats were intact and the heads were reusable.
I know that it's bored over, but I also had the block and heads decked slightly to help. Although I'm dying to get a programmer.
I re-used the same injectors and throttle body, but the injectors got juggled into new homes.
The valve seats were intact and the heads were reusable.
#18
#20