I have recently turbo'd my B16a2 and built it with the following parts and done this work....
The engine has 145k on it, and 40k has been done by me
*JE forged pistons 9.0.1
*Eagle rods
*Cometic 051 head gasket
*ARP headbolts and rod bolts
*ITR valvesprings and retainers and lapped the original b16a2 valves back in to the same head they were removed from.
*King rod main (big end) bearings (stupidly did not check clearances)
(apparantly green compared to hondas colour code?)
*Colours off big end bearings on crank where 1xgreen, 1x black and 2x red.
*Standard and untouched the mains in the same block
When i first started it, i left it idleing for a few minutes then took it very cafefully around the block, when i did this i noticed straight away underload it made a loud knocking, ticking noise.
I re-checked the tappets and made sure it wasnt anything drivetrain related or any aux parts....it wasnt.
I was reasurred it wasnt anything major and just sounded like piston slap by a few friends, so i started doing some break-in miles, ive now done +450miles and the noise is still ther, i feel its got a little louder...but its hard to tell with it being so loud to begin with.
My rebuilt engine has done 145k miles, but it doesnt sound like piston slap to me, would piston slap be underload or off-load?
Anyway, i was convinced it was rod mains because of the colours used against standard, as far as i can see, honda aim for green, blus is the thickest and red the slimest bearing, am i right?
If so, it seemed to me that the cylinder that i removed the black rod main bearing from would mean the green one fitted would be to small?
Conrod Bearing Set
1.510-1.507 mm 0.0594"-0.0593" BLUE
1.507-1.504 mm 0.0593"-0.0592" BLACK
1.504-1.501 mm 0.0592"-0.0591" BROWN
1.501-1.498 mm 0.0591"-0.0590" GREEN
1.498-1.495 mm 0.0590"-0.0589" YELLOW
1.495-1.492 mm 0.0589"-0.0587" PINK
1.492-1.489 mm 0.0587"-0.0586" RED
So i checked the rod mains and all of them looked fine, the one showing the most wear i replaced with the original black shell from that crank, just to see if that cured it for a moment. When i re-started it, the noise was there immediatly again.
Heres some vids i have taken off it to try show the noise..
In the car driving
IDLEING
REVVING
INITIAL START UP
Im really confussed here? wtf is this noise?
Does anyone else on here have a high mileage turboed B series? is it really noisy?
Thanks for any help, ste