Rb25 rebuild question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Sideways_blksr20 · 10-19-2011, 11:31 PM

I've donde 10+ swaps but i've never taken a motor a part .
Heres the deal , i bought a motor set
Rb25det series 1, i did a compression test and i got this numbers. 150 135 145 150 150 150
So i went ahead and decided to replace all gaskets ,including headgasket , new timing belt , water and oil pump.
Today i removed the head and this is how it looks like.

This is how the bottom of the head looks

Walls dont look scratch but top of the pistons and end of the wall look really dirty , is this normal or should i replaced my bottom end parts too?

10-19-2011, 11:31 PM	#1
Sideways_blksr20 Nissanaholic! Join Date: Oct 2008 Location: Tustin Age: 38 Posts: 1,667 Trader Rating: (38) Feedback Score: 38 reviews	Rb25 rebuild question I've donde 10+ swaps but i've never taken a motor a part . Heres the deal , i bought a motor set Rb25det series 1, i did a compression test and i got this numbers. 150 135 145 150 150 150 So i went ahead and decided to replace all gaskets ,including headgasket , new timing belt , water and oil pump. Today i removed the head and this is how it looks like. This is how the bottom of the head looks Walls dont look scratch but top of the pistons and end of the wall look really dirty , is this normal or should i replaced my bottom end parts too?