mdscole

I'm in the middle of an intake swap. I found a good deal on an LS6 intake with a damaged rear connector for the AC vents, brake booster, and MAP sensor. It's the same connector that's on the existing LS1 intake.

Honestly - I should have picked up that deal on Amazon - but I didn't hear about that till I already picked this up.

They pivot a little an have some sort of o-ring. Is it possible to pull one off without destroying it and swapping them out?

How does it come apart? I looked inside - and it wasn't apparent.
LS1:

LS6:

bluenightmare

the vacuum assembly quarter turns out and can be replaced, I have never done one personally but I have seen it done. IDK with way it turns out.

sjsingle1

iTrader: (1)

^^ obviously has never done it......it does not quarter turn out

dodson55

iTrader: (18)

It you can't get it out drill and tap the broke nipple to 1/8 npt then get a brass 1/8 npt to whatever size nipple you need and problem solved for less then 5 bucks

omarrakeen

iTrader: (2)

do not try to force it! its very prone to break. try it with your stock ls1 intake if you dont need it or try the drill method above. take your time doing it waste a day on this better than redoing the whole thing. good luck

bluenightmare

I apologize if i may have mislead you, the last time I saw one of these vacuum trees off is back in 2001. I was trying to help you out.
sjsingle1, if they do not quarter turn out then lets help this guy out and let him know how to swap them instead of just putting in a statement that I am wrong

sjsingle1

iTrader: (1)

the whole piece is designed not to come out.......some just try to pry it out which just messes everything up

Pocket

iTrader: (22)

Fix the damaged intake with hardware store parts

Find a 1/8" strait barb fitting and file one end strait. You can also use some 1/8" metal tubing, but its not as common. Drill out the broken fitting base the same OD as your tube/barb. Slide the new tube in and JBweld a seal. Ziptie the MAP down

Fixed in under an hour for <$10

You will pay hell trying to get the fitting out of the LS1 intake. Most successful method Ive seen was to saw the back runner off the intake and pop the retainer off directly, then crumble the fitting out of the LS6 intake. GM does NOT sell the fitting/O-ring individually, so one intake must be scavenged for it

lemkerailroad

thanks for the info guys
i work on these all day long and never changed one
now that i know about it i will end up with one ......

murphys law

mannystien13

iTrader: (2)

it actually does come off and you half turn it i belive thats what i did and took mine off with out breaking it i had too becuase i need to repair an ls6 intake that i recieved in same condition as yours

David_viny

Is that piece supposed to feel kind of loose? This thread just reminded me way back when I had my intake off that it seemed oddly loose, could turn side to side some. Car runs perfect though.

sjsingle1

iTrader: (1)

i fixed mine by destroying a LS1 intake.....got the fitting off and installed it on my LS6 intake......it DOES NOT simply come out

The Postman

iTrader: (44)

I know this is a old thread, but seeing as how every post in here is that it doesn't come out I figured I'd post that it does in fact, come out.

There are 2 clips on the inside of the intake, you have to remove the throttle body and use something to gently release them. Seen one guy use a 3/4 piece of wood, and another that says they used a piece of tubing the same size as the plugs outer diameter and slipped it over the clips, releasing both at the same time.

This won't do you any good though unless you have a replacement from another intake as GM does not sell these separate.

Either way, it can be removed without destroying the intake.

sjsingle1

iTrader: (1)

my hands are to big......and the posts in the center of the intake get in the way of a straight shot to the bung.......dont know how that would work

The Postman

iTrader: (44)

You don't put your hands in the intake.

It does work, I've watched people do it and I've done it myself.