Smog Pump.

[Derision]

Dumb question.

I have an 85 GP with a 305HO.

What would happen if I were to remove the belt from the smog pump?

I mean, aside from violating several state and federal laws regarding emissions. Would it be bad for the engine or components?

Thanks.

 

[megaladon6]

nope. all it does is pump oxygen into the cat in order to built up heat and efficiency.

 

[Derision]

nope. all it does is pump oxygen into the cat in order to built up heat and efficiency.

I ask because it's been making some angry noises... kind of like it doesn't want to spin. I have no idea how old it is, but chances are it's at least ten years old. I was trying to conjure an easy workaround to it until I can get around to replacing it.

So removing the belt would not be bad, then? I'll probably do that later, in that case.

 

[KrisW]

In CA, I used to take them apart and then gut the pump. That way, the smog guy thinks it's there. Usually there are lots of worn out vanes inside making the noise.

 

[sbcCuttY]

my brther took his off from his 4.3 and nothing happen..he also took off the cat. converter..I blame him for global warming.

 

[Derision]

I blame him for global warming.

Hahah... that's what most of my friends say to me, before I inform them that, actually, my car passed emissions with better marks than most of their four cylinders do.

I was going to leave the pump actually on the engine -- I want to be able to reconnect it if need be -- but just remove the belt. I already removed the AC belt and entire compressor, but I want to leave the smog pump there so that I can always go back to my environmentally-friendly ways if I wanted to. Just for now, I'd like to give it a shot without having to spin the thing.

 

[sbcCuttY]

yeah thats wut he did..first he took off the belt and drove for a couple days...and he noticed nothing went wrong. so he took it off..

 

[Derision]

Welp... smog pump is disconnected. I notice no difference in performance, other than that the sound of an angry, busted smog pump is not interfering with my hearing the rest of the engine.

Thanks!

 

[saucee115]

remove the smog pump totally off. that should save you maybe 5 to 15
pounds of weight off of car which should equal maybe a fraction of a tenth of gas lol you have more space to work in your car. sell it to the scrap yard as junk

 

[Derision]

remove the smog pump totally off. that should save you maybe 5 to 15 pounds of weight off of car which should equal maybe a fraction of a tenth of gas lol

Heheheh. Actually, my primary motivation for disconnecting it is because it's loud, like a giant, unlubricated hamster wheel, and I've been trying to diagnose another problem with the engine and can't hear over the thing. Once I figure out the main issue, I'll probably end up getting a new smog pump and replacing this old one. I like to keep things, er, at least moderately up to spec. Heh.