RB25DET Rebuild Diary Day 1: Taking off the crossover pipe

First of all, i did not write this. I came across someone named Larry Chen on the net from the car team group junkies who just recently did a "minor" maintenance on his datsun 240z(260, 280, not entirely sure)with the rb25det engine. All credits goes to him. I am backing up his maintenance diary here, just in case, like all the good tutorials out there goes down.



Day 1: Removal of crossover pipe for RB25DET engine.




Day 1.
The first shot of the motor on the stand, nothing new to see here.

Another view from the front before I start ripping it up

This is the crossover pipe. Two 10mm bolts have to be removed from the elbow pipe to allow for it to be removed. The bolts lay on the left side of the engine bay [on the turbo side] near the top of the valve cover. Doesn't take Sherlock Holmes to find the two bolts.

Next comes removal of the recirculation valve. You don't really need to remove it, but I wanted to see what was underneath it. Two 12mm bolts need to be removed. A vacuum line which goes to the intake plenum, and the other recirculation air hose also needs to be removed.

I labeled the vacuum line that goes from the recirculation valve to the intake plenum just in case. I just remembered that I was going to use the GReddy plenum but it's always nice to label things.

This is what it looks like when you remove the recirculation on the crossover pipe. No big deal, I will re-attach the recirculation valve for storage so I could remember what goes there.

With the bolts free and all the hoses removed, I was able to pull the crossover pipe to take a peek at the throttle plate.

Straighter shot of the same thing. I forgot to take a picture with the measurements next to it so I will do this later, but for the most part the inside looks really clean.

So on the other side, I removed all of the plugs and labeled those also. The grey plugs at the bottom of the photo was for the injectors [top grey plug] and the bottom grey plug is for the water temp and other. Don't forget to remove the CAS plug, and other stuff too.

This is the rear end of the plenum. Just a few clips and such, but I removed them to remove my harness. Now I can get access to a lot of the plenum/manifold bolts, but I should label and remove the hoses that are underneath.