Clicking from this… what is it?

[Dynomite]

Originally Posted by G-Sting

I had been browsing about all those who've pulled the Plenum for various things… and was literally thinking yesterday "glad I don't have to pull the Plenum until way down the road on this low mile Z." lol

Well, in the meantime…

1. Is there any problem with driving it for a bit before I do this?
2. What does that vacuum pump do for the secondaries before start?
3. Trying to keep it stock… for a least a month or two or three… and drive and enjoy it. But, what else should one check or replace when finally pulling the Plenum?

Thanks for the tremendous help!
G

Naw ......just run it.......your Plenum vacuum will take over for most instances. The Vacuum Pump just takes over when Plenum Vacuum drops such that the secondaries cannot be pulled open.

Removing Plenum (including the 10 minute Plenum Removal)

Check/replace injectors, Check Vacuum System, Recondition Starter, Clean Valley/Valley Drain.....and so on

Minimum Restoration of a 1990 ZR-1

It is ALL in signature

I am a big promoter of TB Coolant Elimination at Injector Housing so you can do the 10 minute Plenum Removal.
I Eliminate TB Coolant without it being noticed by looking at the engine......looks like TB Coolant is there but it is not