MIRROR FINISH ON PISTON WALLS

[280zdude]

Hey question guys what company valve stem seals have you used? Any recommendations  

[siteunseen]

I have Fel pro on my 280. They were in the rebuild gasket kit at a local chain store. Working fine since 2011.

Nissan on my 240, also great since 2016.

 

[280zdude]

Next question how do you recommend I flush the rust out of the channels. I can’t pull the car out side to use a hose and I don’t think it’s a good idea to use water with the pistons open right?

[dutchzcarguy]

10 hours ago, 280zdude said:

how do you recommend I flush the rust out of the channels.

You should have done it before opening, but you can do it after you close it.. head on and clean the waterways.. I never had a clogged up engine but maybe someone here can say what to use besides lots of water..

[280zdude]

I actually did do it but I guess there’s a lot of build up in there

next question 

what do the thing circled do?

[Zed Head]

Air conditioning magnet valves (solenoids) and vacuum reservoir.  Take care of those parts, and the hoses.

[280zdude]

20 hours ago, Zed Head said:

Air conditioning magnet valves (solenoids) and vacuum reservoir.  Take care of those parts, and the hoses.

How do I take off the electrical connectors? I don’t want to break anything 😅

[dutchzcarguy]

Are those connectors.. righty tighty lefty loosy?  You turn them to the left to open?  I've seen those conn. on headlights of the 260z..

[Zed Head]

19 hours ago, 280zdude said:

How do I take off the electrical connectors? I don’t want to break anything 😅

I'm not sure but I think that you just peel the rubber boot back and pull them straight apart.  That's how other connections are up there.  Here's a thread with a picture of a set unplugged.

 

[280zdude]

1 hour ago, Zed Head said:

I'm not sure but I think that you just peel the rubber boot back and pull them straight apart.  That's how other connections are up there.  Here's a thread with a picture of a set unplugged.

 

This worked! I didn’t peel the rubber back due to how brittle it was sprayed it with a little silicone before pulling

[280zdude]

This is how I’m flushing the engine out.. hoa says I can’t do anything outside. 
 

so I got tarps and taped it so water drains out of my garage. Plugged all the holes and I’m using an air compressor to flush the system with water. I had put vinegar into the the system for a few days before doing this. 
 

look at all the hard Sediment that came out! 
 

I will repeat until I see no more color in the water then I’ll remove the expansion plugs and do a visual check and flush 

 

caution dirty water will go everywhere. 

[280zdude]

For the pistons I put on blaster and a towel but I don’t see any other way around it. 
 

if any one has any ideas to help keep piston rings clean I’m all for it