first time popping the hood, some basic questions - Toyota Nation Forum : Toyota Car and Truck Forums

Xevuhtess7 · 06-19-2003, 09:12 PM

alright, after some extensive parallel parking lessons my dad gave me, i popped the hood and took a look around my 94 v6. the big black tube (like 5 inches diameter) to the right of all the cylinders that is at an angle, that is the intake right?

and two silver attachments towards the bottom of the cylinders are the exhaust headers right (3 tubes per set)

arcasmachineracing · 06-19-2003, 09:20 PM

Quote:

Originally posted by Xevuhtess7
alright, after some extensive parallel parking lessons my dad gave me, i popped the hood and took a look around my 94 v6. the big black tube (like 5 inches diameter) to the right of all the cylinders that is at an angle, that is the intake right?

and two silver attachments towards the bottom of the cylinders are the exhaust headers right (3 tubes per set)

yeah that should be your intake, does it go to a "plastic box" if so that is your air box in which you air filter would be contained in...

3 tubes per set? no comprehenda senorita, speak egalisah motha'fuga! i think you looking in the wrong place... but mabey I think that cause your description is a 'lil' too confusing for me!

88 LE · 06-19-2003, 09:56 PM

Quote:

Originally posted by Xevuhtess7
the big black tube (like 5 inches diameter) to the right of all the cylinders that is at an angle, that is the intake right?

Yup.

Quote:

and two silver attachments towards the bottom of the cylinders are the exhaust headers right (3 tubes per set)

The silver cover your seeing is the heat shield for the exhaust manifold.

There should be 2 exhaust manifolds. One towards the front of car and one towards the rear by the firewall.

The exhaust manifold bolts onto the cylinder head.

If you want to learn about the engine and what parts are what pick up a repair manual for your car.

Xevuhtess7 · 06-19-2003, 10:12 PM

oh those are the exhaust manifolds?

i circled what im talkin about in green (no this is not my engine or even my type of car, sorry for the small pic, just grabbed it off google)

88 LE · 06-20-2003, 04:14 AM

Top is intake manifold.

Bottom is exhaust manifold (front).

Nick · 06-20-2003, 04:16 AM

don't touch the one on the bottom after the car's been running

or else i'll have to give you a sign

Xevuhtess7 · 06-20-2003, 11:44 AM

so where would the exhaust headers be?

***Chris Corolla S*** · 06-20-2003, 06:27 PM

You posted a picture of a four cylinder engine so you circled the exhaust and intake manifolds.

You are right the first time you have a V6 so there are two exhaust manifolds (aftermarket exhaust manifolds = headers) with three pipes each, making six total, one for each cylinder

P.S. = A stock exhaust manifold is shorter and tuned mildly to give you low-end torque for around town and good fuel economy.
An after market exhaust manifold is called a header (one header for an inline four or six and two for a V6 or V8 or V10, etc.) and it is longer to improve flow and reduce back pressure resulting in slightly less low-end power and fuel economy but higher over-all peak power.

arcasmachineracing · 06-20-2003, 06:59 PM

I wasn't thinking about you having a 6

my bad bro... yeah those are your "headers" ... sorry....

warlock · 06-20-2003, 11:03 PM

Quote:

Originally posted by Xevuhtess7
so where would the exhaust headers be?

look at your pic XEVUHTESS7 see the upper green part the exhaust is under that. and the other set is the other green circale.there is not reason to play with the headers unless you are going terbo,if you dont know where thay are dont f#ck with them

djprefix · 06-21-2003, 02:09 AM

Quote:

Originally posted by Chris Corolla S
You posted a picture of a four cylinder engine so you circled the exhaust and intake manifolds.

No, he posted a picture of a v6.

88 LE · 06-21-2003, 07:46 AM

Yeah the picture is of a V6.

Notice the 3 coil packs, engine cover, and intake manifold.

Xevuhtess7 · 06-21-2003, 02:45 PM

ok so they are both exhaust manifolds? then where does the air go in from?

by the way i did some more poking around the other day and i took apart the airbox. my filter was maaaaaad clogged! it was black with dust and dirt and had leaves pine needles and all sorts of road crap all inside it. i think its time to replace it

88 LE · 06-21-2003, 04:03 PM

Quote:

Originally posted by Xevuhtess7
ok so they are both exhaust manifolds?

No.

The top part is the intake manifold and the bottom is the exhaust manifold.

Take alook at the pic you posted.

Quote:

then where does the air go in from?

The air gets sucked in through the airbox. From there it goes through the intake piping ---> throttle body ---> intake manifold ----> cylinder head (intake side) ---> combustion camber (where it gets mixed with fuel, compressed, and combusted) ---> out the cylinder head (exhaust side) ---> exhaust manifold ---> through the exhaust ----> then spewed out the tailpipe in the air.

nort0188 · 06-23-2003, 05:51 PM

So I'm bored as hell and reading this thread, so I drew a picture for you.

I.M. = Intake Manifold

E.M. = Exhaust Manifold

So what you're seeing in your picture, on the top is the intake manifold, and on the bottom is the front exhaust manifold. The rear exhaust manifold is located beneath the intake manifold, so it's impossible to see in your picture. Then the two exhaust manifolds are joined together at the y-pipe, which I didn't label, and head to the cat, muffler, etc... all in one pipe.

http://www.imagestation.com/picture/...6/fbdac92f.jpg