What are they?

291 Views 9 Replies 5 Participants Last post by Trey, Sep 28, 2004

cajunz

Discussion Starter · Sep 28, 2004

Can anyone please tell me what the two silver vacuum switch thingies are right next to the fusible links on a '78z. They each have 2 vacuum lines that connect to them and one electrical plug that hooks to them. I'm in the process of stipping the engine bay in prep for pulling the engine and tranny. I've been following Humble's suggestions in his Zcar restoration book and tagging everything as I disconnect it. My wife walked out and started laughing at me and said my car looked like a bad yard sale with all of the tags hanging off of everything.

Thanks,
Brent
Stock '78z

Save

Status: Not open for further replies.

1 - 10 of 10 Posts

Trey

· #2 · Sep 28, 2004

they are a headache. They (in my opinion) are not needed. I got rid of mine years ago. They are often the reason your A/C , defroster - heater do not work. I you are interested in bypassing them let me know I will show you how.

www.datsunz.net

Save

cajunz

Discussion Starter · #3 · Sep 28, 2004

Trey,
I figured they had to have something to do with my heater not working, although the A/C works like a charm. If I can get rid of them I'd appreciated knowing what you did. Thanks in advance.

Brent
Stock '78z

Save

Trey

· #4 · Sep 28, 2004

OK, all you have to do is take the vac line coming from the manifold and connect it to the white plastic bottle. take the other inlet on the white plastic bottle connect a hose to it and run it to the vac hose at the firewall.

if you would like a drawing to help get me your e mail and I can send it to you.

www.datsunz.net

Save

cajunz

Discussion Starter · #5 · Sep 28, 2004

Trey,
Thanks alot, I know exactly what your talking about. I'll try it tomorrow and see how it works.

Brent
Stock '78z

Save

Trey

· #6 · Sep 28, 2004

PS. Re-post if you have any problems and I can help you troubleshoot.
Z ya.

www.datsunz.net

Save

steves280

· #7 · Sep 28, 2004

Also plumb a check valve between the intake manifold and the white bottle, they have these at parts stores in the "HELP" brand.

Save

kingbobdole

· #8 · Sep 28, 2004

Trey,
Would you mind sending me a pic?
Thanks,
[email protected]

Save

FlipFlop

· #9 · Sep 28, 2004

Hey Trey, why don't you post a pic so others will be able to see in the future.

Save

Trey

· #10 · Sep 28, 2004

Sure. I will get it to you this evening.
Z ya

www.datsunz.net

Save

1 - 10 of 10 Posts

Status: Not open for further replies.

Top Contributors this Month