So I was messing around with my car at work. Trying to cure an annoying whistle and trying to see if I could see a lower intake gasket leak (car was starting and dying on cold starts) While I was at it, I changed the oil. I have ran either 10W-30 or 20W-50. My shop only has 5W-30. I figured thinner oil during the winter would be ok, change back to my normal oil before spring. Start the motor, after it warmed up, heard a knock coming from the bottom of the motor. Put it on a lift, and put a stethoscope on the oil pan. sound was loudest near 1/5. Pulled the motor, dropped the pan and #5 rod had movement on the crank. Replaced all the rod bearings with new. Crank didn't show any signs of damage. I, like an idiot, did not replace my main bearings. I would call it lazy I guess. Didn't feel like pulling the timing cover off. Installed a new crank seal, rear main seal and 1 piece oil pan gasket. Got it back together and back in. Ran some 15W-40 through it on a cheap filter until it got hot. Drained the oil and poured in my normal Castrol 10W-30. Ran the car for a while, drove it home. When I got home, had the knock again, but very quite. I only hear it when I open the hood. I only hear it hot. I guess there was an issue with the crank.
So, as luck would have it, both my local junk yards are having a 50% off sale this weekend. Order of precedence for a donor motor is: newest year wrecked low mileage, newest year and just wrecked, newest year not wrecked low mileage, and finally just newest year. I am swapping my top end (reworked and built GT40P's and F303 cam. I already have head gaskets, exhaust manifold gaskets, intake manifold gasket and timing cover gasket set. I'm gonna warranty out my rear main (benefit of where I work and it will get me a new one......) I know I will need a pilot bearing, but is there anything else I am missing? I also have some concerns about the pistons in this motor. I know they are Hypereutectic pistons, but does anyone know what kind? Forged or cast? My entire motor is built to run 6-8 psi at some point and time. I run 14 degrees base timing right now. any of these going to effect the motor? Later down the road, I intend to pick up another block and build it top to bottom, right now I have to get my DD back into shape!!
I'm hoping to have my donor Sunday and my motor out Monday. Hopefully be back together and running Wednesday, Thursday at the latest. I have swapped plenty of motors, but is there anything I should consider or replace while doing this, while still maintaining a low budget?
So, as luck would have it, both my local junk yards are having a 50% off sale this weekend. Order of precedence for a donor motor is: newest year wrecked low mileage, newest year and just wrecked, newest year not wrecked low mileage, and finally just newest year. I am swapping my top end (reworked and built GT40P's and F303 cam. I already have head gaskets, exhaust manifold gaskets, intake manifold gasket and timing cover gasket set. I'm gonna warranty out my rear main (benefit of where I work and it will get me a new one......) I know I will need a pilot bearing, but is there anything else I am missing? I also have some concerns about the pistons in this motor. I know they are Hypereutectic pistons, but does anyone know what kind? Forged or cast? My entire motor is built to run 6-8 psi at some point and time. I run 14 degrees base timing right now. any of these going to effect the motor? Later down the road, I intend to pick up another block and build it top to bottom, right now I have to get my DD back into shape!!
I'm hoping to have my donor Sunday and my motor out Monday. Hopefully be back together and running Wednesday, Thursday at the latest. I have swapped plenty of motors, but is there anything I should consider or replace while doing this, while still maintaining a low budget?