zombie247

check valve means it works only one way. there will be an arrow ---> take it off and suck on it or blow and see which way works

TheSauceSpot

Are all the 96-00 civic hoses the same with the integrated check valve? I found different part numbers for them.. and the 2000 civic is way overpriced for some reason.
46402-S02-A11........2000 over 40$
46402-S01-A01.....1998
46402-S01-A11....1996 both around 15$

just wondering if theres any difference.

jime64871

iTrader: (1)

weird, never knew about the check valve...

Brad Pitts

yeah ive jsut found out bout check valve. it has me confused. i got a 99 ej8 with a b16a3 swapped in tried to use my stock hose with check valve but car wont idle over 500 with it installed n half the time it just shuts off. now if i disconnect the hose from the intake mani itll idle at 900-1000 n will stay runnin. now i looked at part numbers for ex n si n both are diff. is there a flow difference or what?

siblues

iTrader: (1)

What are the downsides to not running one I havent had mine in the car in years?

jime64871

iTrader: (1)

maybe reduced brake feel, pressure?

phunhaus

There's no flow difference, but a length difference because you're dealing with different intake manifolds.

Brad Pitts

well i flipped my booster n moved port off intake mani got it pointin down. didnt cut the hose at all cause i just pulled it off my buddies car since couldnt find mine. so basically i could get a check valve off any honda? was thinkin bout gettin one from a teg that way i can make my own line.

or could i just run a line with no check valve? not exactly sure what the check valve does there

siblues

iTrader: (1)

Thats what I have been doing for years and never even noticed a difference?

onepuff

Are u guys without the check valve boosted? I'm guessing bad things would happen to that brake booster if it was to get "boosted". Correct me if i'm wrong though.

CBEengineering

i was gonna say that. but you beat me to it. thats like the plastic manifolds on some cars. and people wanna turbo them. i could see the IM blowing up like a balloon when it gets hot.

Mr. Em1

iTrader: (1)

lol d17's intake manifolds ftl.
whos got an answer to this chekc valve question? wheres e honda at?

Brad Pitts

yeah this thing is buggin me. i cant get car to idle or stay on with that hose connected but with it off it idles n runs fine

CBEengineering

put your lips over it and suck on it from the engine side.........runs and hides.......if air moves in blow to see if it stops.

Brad Pitts

i know i got the hose on correctly. put it on same way i pulled it off my boys car. only diff between are cars is mines a 99 n his is a 00

siblues

iTrader: (1)

# years boosted without mine and no problems yet but I guess it cant hurt to have one.INow you guys have me worried I am going to pick one up this week.

Brad Pitts

lol

sintype

nice!

E.Honda

Vacuum enters the booster through a check valve on the booster. The check valve is connected to the engine with a rubber hose and acts as a one-way valve that allows vacuum to enter the booster but does not let it escape. The booster is an empty shell that is divided into two chambers by a rubber diaphragm. There is a valve in the diaphragm that remains open while your foot is off the brake pedal so that vacuum is allowed to fill both chambers. When you step on the brake pedal, the valve in the diaphragm closes, separating the two chambers and another valve opens to allow air in the chamber on the brake pedal side. This is what provides the power assist.

Have a good one.

Brad Pitts

mkay. still gotta figure out my idle problem

spAdam

iTrader: (1)

Thanks E., glad I scrolled all the way down before I started typing. Sometimes I'm a little taken back by the lack of general knowledge in here. But then again, if we all knew everything already we wouldn't be in here anyways.

TheSauceSpot

i think im just going to run my stock line, with the stock check valve in it.. dont want to experiment with different lines and check valves... its not that noticable anyway.

Hayce

I'm boosted and had no valve and had no problems...

K-Serious

Looks really Nice


Where did you get the radiator?

rogueeg6

iTrader: (1)

Feels?