i just purchased and new motor currently using his upper andlower intake manifolds, my uim would not fit onto his lower intake manifold so im using his, i cant locate the brake booster nipple on the uim, currently my brake pedal doesnt work. where would i get vacuum for the brake booster now?

eric.

 

You can drill a hole in the UIM where it should be. Then tap it for a 3/8" barbed fitting. At least that what I am gonna do with it.

There is also a threaded plug in the LIM that you could open up and find a barbed fitting to go in there.

James

 

where does the japan car get their brake booster vacuum from then?

eric.

 

your brake pedal works without the vacuum booster.... sissy

 

Haha, don't be silly.. you know as well as we do that the Japanese cars don't HAVE brakes!




Okay, I honestly just don't know.

 

You can see it in this pic.



It's the big hose going over the BAC valve's rear coolant hose, into a metal line bolted to the LIM, fed by the rear secondary intake runner.

 

mines doesnt have that, ill take a picture when i get home, i have no place watsoever to put that on. i dont want to change out lim and uim and use my old ones because i dont want to touch the oil injectors and omp lines, i dont want to crack them. if thats is my only choice i guess thats what i have to do unless some one can point to me where i can get the vacuum, pics later tonight thanks

eric

 

can you tell me where to hook these vac lines up? the middle yellow vac hose inbetween the two secondary injectors were connected from teh previous owner, is that correct? the other yellow vac line thats crossing it is the one tahts connected to the nipple right in between the two oil injectors, where does that go? and the other two blue hoses. where would those go? my uim intake manifold does not have any place for the brake booster like the above pic. any where else i can get vac for the brake booster?

eric.

 

http://www.rotaryresurrection.com/ro...emisremov.html

in kevin landers emission removal. he plugged off all three nipples on the back of the uim, he didnt mention this but does he cap off the nipple on the secondary fuel rail as well? mine lower intake manifold looks different from his. that link answered where the yellow hose inbetween my sec oil injectors would go, i'd just plug it, and plug also both the blue hoses location. do i just leave the yellow hose in between the secondary injectors or plug them as well?

eric

 

^

 

take a picture of where the bac is.. the vac is not on the UIM its on the LIM. take a picture from the passenger side of the motor...

 

The BAC is blocked off I believe on his manifold.

 

if i plug up all two of the nipples on teh back of the uim does tha tmean i plug up the nipple on teh secondary fuel rail as well according to kevin landers?

here are teh pics i dont see any place for the brake booster.

eric

 

The bolt shown, is where the banjo bolt with the little piece goes...

 

i cant seem to fit anything in there i cant find anything at orchard either.

eric.

 

Go to the junk, and get the bsnjo and the blok piece from an n/a

 

^ anyone know anything about the vac lines above? and wat would fit into the hole where martin circled?

eric

 

wat block piece are youtalking about? can you supply me with a pic?

 

Yes. It connects the two secondary injector air bleeds together.

That's the primary injector air bleed.

The angled nipple on the inside of the LIM feeds manifold pressure to the FPR. The one coming out the back of the LIM feeds air from the UIM to the secondary injector air bleeds.

There are three nipples on the back of the UIM. The top and bottom ones are for the injector air bleeds (it doesn't matter which one goes where), and the big nipple in the middle is for the oil nozzles air bleed. They're all fed from in front of the throttle via passages in the UIM and TB, so they're air only, not vacuum.

Yeah it does, as Martin indicated. Compare my pic to his and you should be able to figure it out.

 

thanks for your help martin and nzconvert. ill try to get the na brake booster pipe tmr. and see if it will fit

another and probably last question unless i have problem with the brake booster pipe

wat do i do with this( the one with the yellow cap on it)? it has two nipples on it, one is already capped off, the other had a white and green check valve or something do i tkae that out and cap it as well? it was hooked up to one of the nipples aft of the uim but now that i know where everything goes its all occupied.

 

That's the dual throttle system. The vac lines are for the part of the system that holds the secondary throttles closed until the engine warms up. If you trust yourself n ot to romp on a cold engine, you can leave it disabled.