Air Cleaner

[Ronpascual]

Good day nga sir.
Ask lang po sana ano yong nakabilog sa photo?
May putol po kasi. Para saan po yon?
Salamat in advance mga sir.

[dr. d]

Good day nga sir.
Ask lang po sana ano yong nakabilog sa photo?
May putol po kasi. Para saan po yon?
Salamat in advance mga sir.

sundan nyo po yung putol na goma, kung saan siya pupunta..

kung hindi nyo ma-trace...
distributor vacuum advancer...
brake booster...
anong makina, po?

[Ronpascual]

sundan nyo po yung putol na goma, kung saan siya pupunta..

kung hindi nyo ma-trace...
distributor vacuum advancer...
brake booster...
anong makina, po?

Sir dr. d salamat po. Sa may air cleaner po siya pero di ko pa trace saan talaga nakaconnect. Check ko po.
2e po makina, corolla big body po tsikot ko.
Pero sir ano po yong plastic cylinder na yon? Heto po closer photo.

[dr. d]

Sir dr. d salamat po. Sa may air cleaner po siya pero di ko pa trace saan talaga nakaconnect. Check ko po.
2e po makina, corolla big body po tsikot ko.
Pero sir ano po yong plastic cylinder na yon? Heto po closer photo.

hindi ko alam.
wala akong 2E, eh.

[Ronpascual]

hindi ko alam.
wala akong 2E, eh.

Sa may carb lang siya nakaconnect sir. Wala namang issue yong sasakyan, nagwoworry lang ako baka mavkaproblema dahil sa putol na yan.
Hehe.
Wala pala issue bukod sa hard starting pag cold start.

[oj88]

Toyota calls it the "vacuum transmitting valve". It may be some sort of a check valve or one-way valve.

Part 23283 in the diagram (Mid-upper-center of the diagram)

Part no.: 90925-01091 - VALVE, VACUUM TRANSMITTING, NO.3

VACUUM PIPING[ (925- )2E ] TOYOTA COROLLA [AE1#,EE1] (ASIA and MIDDLE EAST)





Function and testing:

[dr. d]

still can't see, where it connects to...

efi na lang!

heh heh.

[oj88]

It's part of the emissions system. Here's another diagram, not from a 2E but it serves the same function.

It's the part indicated as "VTV" for Vacuum Transmitting Valve.

[dr. d]

i'll just file it under "one-way valve".

[oj88]

i'll just file it under "one-way valve".

Generally speaking, yes. Technically, no. It should flow unrestricted in one direction and slightly restricted in the other. How slightly restricted is dependent on the intended use. The engine vacuum varies widely during operation and certain pneumatic devices controlled by vacuum needs just the right amount to work properly.



Somebody can probably explain it more eloquently:

In one direction the VTV's are supposed to restrict, but NOT prevent flow. In the other direction, it should allow unrestricted air flow. If the flow one way is stopped, then the emissions system the VTV is associated with won't work properly.