help: can somebody tell what is this??

[BuDavid]

i baught a 1977 280Z and i found some cancelled things in it, like the cainster! I couldnt find it under the hood, did they come with cainster or didnt?

but the thing that drives me nuts is that tank or what it is called in the picture! can anyone tell what is it? and what is it's configuration, coz i hate cancelled things in the car!

and in the other picture is the throttle in my car, it is wet of oil always, a guy told me that the engine needs overwhole! is that true? if not can u tell me how to eleminate this prob.?

thanx

[sblake01]

The first picture shows the vacuum tank that is part of the factory air conditioning system. It stores vaccum to maintain the higher idle speed necessary when the a/c is on. The second picture, well I would check your PCV valve. It's probably bad and allowing oil to be sucked into the intake. The PCV valve is located on the bottom of the intake manifold just about in the center.

[BuDavid]

thanx Stephen,but the what is the configuration of the vacume tank? one end comes from where and where does it go? does it have to be in series with the vacume valve of the AC? b4 or after? I have no clue man.. I'll check the PCV, I hope that it will be solve from it, coz i have a whole intake from a nother Z in the garage ..

thanx

[First Gen Z]

The vacuum tank actually stores vacuum for the operation of the mode door actuator. It is part of the AC system. It opens and closes the doors in the air distribution box.

[sblake01]

The vacuum tank actually stores vacuum for the operation of the mode door actuator. It is part of the AC system. It opens and closes the doors in the air distribution box.

You know, I knew that. My 810 has that system although the tank is different and I have actually replaced it. I was thinking of my Z which has dealer installed air and doesn't have that tank so I don't know where the vacuum lines go. Maybe First Gen Z can help out there. Oh well, a mind IS a terrible thing to waste! :cheeky:

[BuDavid]

ok but u didnt tell what it s it's configuration, the two terminals of the tak, where do they lead?

[sblake01]

ok but u didnt tell what it s it's configuration, the two terminals of the tak, where do they lead?

I'm not sure. My Z doesn't have the tank and my 810 is set up differently. I was hoping that First Gen Z would answer that one.

[BuDavid]

I hope that firt Gen would notice that though, hold i send him a private message about this?

and by the way, i checked the PCV vlve u told me about, the hose was removed from it! maybe it is the cause of the oily throttle body then??

but when i replace it with a new one, where the house should lead from the valve?

thanx fo your concern..

[BuDavid]

I hope that firt Gen would notice that though, hold i send him a private message about this?

and by the way, i checked the PCV vlve u told me about, the hose was removed from it! maybe it is the cause of the oily throttle body then??

but when i replace it with a new one, where the house should lead from the valve?

thanx for your concern..

[sblake01]

There is a metal tube mounted in the engine block just below the front exhaust port. The PCV hose runs from there to the valve.

[First Gen Z]

One hose on the vacuum tank goes to the vacuum source. A fitting on the intake manifold toward the rear. The other hose goes to through the firewall to the AC unit.

[BuDavid]

thanks a lot first Gen Z, I'll try to fix it ..

Stephen, u were right, it had something to do with the PCV valve connection, today i found the place where should the hose lead to the valve, it was free completely! i guess that i baught the car from a pure idiot! he just left the PCV valve and the other opening in the block free!

but the question is, when I connected the pipe, a discovered that there should be nother valve which is mensioned as "flame arrester" in the picture u attached, i didnt have it, i just have an empty hose from the valve cover to the junction.. they told me that i can use something like a one way pass valve which should hold oil from running from the valve to the chmber!? i put it, but is it the same thing that should the flame arrester do?

coz the car was runing faster a bit, but the engine is very weak and turns off when the RPM below 1000! not reliable at all:(

i hated the care after that, what should i do?? (the PCV valve is cleaned, when free it sucks air strongly!)

and is it normal that when i open the top oil cap on the valve cover i get a vacume pressuer that goes off right after taking it off and graduately get the vaume again while putting it back ??

I'm lost guys:(plz help! i dont want to end selling my baby! :stupid: