onebadyfz450

im in the middle of re-routing my belt with my new Mac underdrive pulleys, now when i take off my smog pump and bypass it, what do i do with all the hoses coming off of it.

maybe its not alot coming off the smog pump, but i dont wanna (plug) the wrong hose or something and make something go wrong.


im trying to take it to the track this weekend....
any info would really help.....[/align]

mjr46

remove all hoses/ thermactor air bypass valve and diverter valve and cap off vaccum lines to selonoids and plug the gulp valve/check valve that goes on the tube that connects to the back of the heads

nitrous_bob

you can completely eliminate all of them if you want...the piping that goes to 2 steel pipes (h-pipe and back of heads) you just need to cap off the end coming from the h-pipe, and then plug the 2 holes on the back of the heads w/ "thermactor plugs" they are a threaded insert.

bolts will work too, but have to be right lemgth or it won't seal.

ghetto way is cut the "y" pipe off, flip them around and use rtv...then reinstall on the opposite head...that way the blocked part goes over the hole, and you reuse the mounting bolts

and you can't see them anyways

onebadyfz450

i did this but on the check valve that connects to the head. i just caped it off with a big bolt,my smogs still there, but i bypassed it and my belt went from a 105 1/2 to a 90.

now should i unbolt the smog and remove the whole pump

mjr46

^^^^^you can do just that

ckyguy68

I used a 3/4" vacuum cap for the line that goes to the heads. Its easier than a bolt and looks a little cleaners too.