fork_included

thank you for your response!

what textbook particulary should i consult? do you have any names in your head?

cheers,

Serge.

austin944

I picked up some used auto-shop trade/technical books at Half-Price used bookstore. I don't have them in front of me, I'll try to post some tonight.

fork_included

the charcol canister,

what if it is removed, and the tubing from the fuel tank be routed directly into that nossle thing at the top.

how might this affect the general operation?

fork_included

la la la,

anymore insight?

i'll be ripping out the HVAC system this weekend to "fully" remove the a/c components, maybe more vac hoses will disappear.


also, can i just for my own sake wire the brake booster vac hose directly into the IM so that i know that alteast that part will function the way its supposed to?

austin944

The intake manifold isn't always under vacuum, so usually there's a reserve vacuum supply with a tank somewhere to provide vacuum to the brake booster. I wouldn't mess with the booster vacuum lines unless you really know what you're doing.

xsboost90

not sure that there is a tank anywhere for extra vaccum for the booster- pretty sure that it just has a check valve so that it doesnt loose vaccum when the engine is not making vaccum.

Cass944

yeah, the only time the manifold is not under vacuum is when your accelerating. You shouldnt ever need to use the brakes while your accelerating

austin944

You may be right, but this is what I read from one of my textbooks:

"The vacuum for the power brake system is derived from the intake manifold of the engine. Since fluctuations in manifold vacuum occur, there is a reservoir in the system that stores the vacuum so it is always available, regardless of the transient conditions in the manifold. There is a check valve between the manifold and the reservoir that prevents the vacuum from escaping the reservoir or, actually, air from entering it during conditions of wide-open throttle. The check valve also serves as a safety device, protecting the system from losing vacuum in the event of a leaking supply line or other failure in the vacuum supply."

There is a vacuum reservoir tank near the battery, it connects to both the HVAC and the brake booster (on the early cars, at least).

fork_included

i will inspect my car closely on the weekend ("my time") but i believe there is only one vac line leading from the brake booster.

and whatever vacume canister i have (big green thing next to the battery box) has a very tiny hose leading away from it, i doubt thats it.








so about the charcole canister? i think mine is dead anyway, i doubt it has been replaced in the 23 years of the cars life.

i know it doesnt weigh much but its more for asthetic/car simplification purposes than anything.

Campeck

yes. hack all that crap off and tear the hoses out. then rip out the charcoal canister. put a nipple cover over the nipple that left on the TB then cut the lin that goes under the car from the big ? and cap it too.

or something...

Campeck

<<< notice on my car its allll gooone.

gtroth

...nobody knows what the venturi does.

fork_included

elzergone

I am bumping this thread for two reasons.

One, I am trying to figure out the exact same thing, only on a later car. What can go?

Two: Hey Serge, I still have your car, it still runs and is in slightly better aesthetic shape than it was went you sold it to me Hope China is treating you well!

Mike C.

A venturi increases air velocity and decreases static pressure at the venturi. Oddly enough, it is known as the venturi effect. Any decent engineering textbook on fluid mechanics will have more than most people would want to know about it.