408 teardown, pics inside
10-10-2010, 11:00 AM
#35
The way Ive always done it is loosen the rod bolts half an inch then use a brass punch on the bolts and it will pop the rod loose from the cap then you can back the bolt out the rest of the way and go on with it.
Looks like the main bore wasnt checked and burnt up the thrust bearing. Maybe Ill change my theory after Im not looking at them on my phone.
Looks like the main bore wasnt checked and burnt up the thrust bearing. Maybe Ill change my theory after Im not looking at them on my phone.
10-10-2010, 12:30 PM
#37
Compared to what? Even with forced induction, they should look new with your mileage. The damage showing on the rod half of the bearings, mainly the one on the right, doesn't look good. Top half damage indicates detonation. In your case, I'm wondering about oil starvation, with the burnt bearings and damage concentrated on the center main. Weird. It's hard to tell, the pics make them look shiny, like cylinders with a zillion miles look. In real life, do they look freshly honed, like they should?
10-10-2010, 01:46 PM
#39
I am not an expert but I am 99% sure you were fat as hell and I bet you washed the bearing out with fuel. The pistons should not look anything like that!!!!!!!!!!! How did you tune this motor? Do you have a A/F ratios of what it was running through the rpm range?
Again I am not an expert but I am confident this was the main issue.
Again I am not an expert but I am confident this was the main issue.