1LE / AC Delete / Smog Delete Pulley info

[Abubaca]

OK, I myself have searched for part numbers more times than I can count, and I've helped others with the same thing twice as often. I figure it's time for an all inclusive thread that's got sticky written all over it.

Obviously, the AC delete pulley is more common. Without some sort of custom set-up, the belt tensioner/pulley is required, and therefore we need the AC delete pulley. It's also refered to as the 1LE pulley, since 1LE cars came without AC to begin with.

The A.I.R. / Smog pump delete is also a fairly common mod for us Thirdgenners, however the use of the "Delete" pulley is rarely used. For this mod you have 2 other options:
-First, you can dis-assemble the pump itself, hog it out, and re-use simply for the pulley. It saves a good bit of weight (if thats' important to you), and it won't ever seize up on you.
-Second, you can buy a new serpentine belt (shorter?Longer?), and run all the way from the crank pulley to the AC pulley. Throwing a belt can be an issue at high RPMs, however most the guys doing this seem to have no problems.
-In my opinion, a big ole useless smog pump looks pretty ugly, and so does a BIG empty hole in the accessory bracket where the big ole smog pump used to go!!!!!

...without further adeiu....

1LE / AC Delete pulley
GM Partsdirect PN# 10055890 $38.15 + S&H

A.I.R. / Smog pump Delete pulley
GM Partsdirect PN# 10186167 $35.22 + S&H

www.gmpartsdirect.com

...and for whatever reason, both pulleys are listed as water pump pulleys. Go figure. Point is that you need the part number.

Here are some pics for ya!

[Abubaca]

.......AC Delete

[Abubaca]

A.I.R. / Smog Delete....

...which is of course illegal..... :nono:

[rokkgod]

i just checked out the classic tags info. smog pump delete should be ok with classic tags. no emissions sticker is required.

[Spdfrk1990]

Hey thanx for makin this post i think im going to go ahead and order the a/c delete pulley.

[liteumup387]

thanks for this info ive been freeking out trying to find a a/c delete pulley cause im buildn my engine and i threw out my ac
and at the time i was able to find all the ac eliminators then as
soon as i went to buy the eliminator they were noware to be found

[bluegrassz]

When I did my a/c and smog delete, I removed the acc bracket and cut it in half. I just bolted the top half back on to use the a/c delete pulley and the belt tensioner. Cleans up the engine and makes it easier to get to the water pump.

[Winger4800]

Is a different size belt needed?

[Abubaca]

No.

...both pullies replace the compressor/Smog pump exactly.

[Abubaca]

Here's a good pic of mine that show both pullies AND the original belt size and routing.

yea, yea, I know you can't tell what size it is, trust me, it's the original size

[Durango_Boy]

I'm doing the same conversion to my 400 with a 1992 serp system. I see in the last pick the front of your engine that you modified, that you have 2 pulleys on the pass. side. The top one I suspect is the AC delete, but what is the one under it, and how did cutting the bracket make it look different? Did you still use a Smog delete?

[Durango_Boy]

In re-reading the replies, I see that my question started with one person, and ended with another. I now realised that the one who cut the bracket was Bluegrassz, and I wanted more details about what he did, and if possible a pic. The pic provided by Abubaca was what the front of an engine would look like if both pulleys were installed. For both pulleys the stock belt will work. Bluegrassz? With you cut bracket technique, do you still use both pulleys, or only the AC delete...and do you maintain your original length belt or did you find a smaller one, and do you know it's part number? Thanks guys...I'm interested because I have both pulleys, and will be doing the same conversion. I like the idea of cleaning up the front of the engine, and may be interested in trrying the bracket cutting technique.

[novass]

I was really suprised when I got mine that the pulleys were plastic/composite. I was originally going to powder coat them to match the rest of the engine bay, I guess that one is out the window...

[Durango_Boy]

Hmm...I wonder if a good machine shop would be able to machine just the pulleys out of billett for a clean look. So long as a good set of matching pulleys could be found...

[novass]

Originally posted by Durango_Boy
Hmm...I wonder if a good machine shop would be able to machine just the pulleys out of billett for a clean look. So long as a good set of matching pulleys could be found...

Actually I was thinking of doing that myself, if I get the time the toughest part would be the groves, I'd have to make a custom tool. That way I could make them match the other shiny parts under my hood.

[bluegrassz]

Originally posted by Durango_Boy
In re-reading the replies, I see that my question started with one person, and ended with another. I now realised that the one who cut the bracket was Bluegrassz, and I wanted more details about what he did, and if possible a pic. The pic provided by Abubaca was what the front of an engine would look like if both pulleys were installed. For both pulleys the stock belt will work. Bluegrassz? With you cut bracket technique, do you still use both pulleys, or only the AC delete...and do you maintain your original length belt or did you find a smaller one, and do you know it's part number? Thanks guys...I'm interested because I have both pulleys, and will be doing the same conversion. I like the idea of cleaning up the front of the engine, and may be interested in trrying the bracket cutting technique.

Hey Durango_boy!

What I did was remove the complete bracket. Then I cut the mounting part for the smog pump off. This left only the mounting holes for the a/c delete pulley. It makes it easier to get to the lower front of the motor. Also helps with the bottom radiator hose access.

I didnt have to use the smog delete pulley. I think I bought a belt that was 6" shorter than stock. I dont remember the part # and I dont have any engine bay pics at the moment. I do plan on taking some, just go to finish a project before I do.

hope this helps.
bluegrassz

[nick418]

im thinkin about doing this.. Deletin my smog.. I want my engine bay to look cleaner, obvisouly i dont care about how clean our air is But i called a chevy dealership up and there selling it for 60 bucks (for the pulley) Im deff gonna have to get it on GMdirect

[nick418]

also Abubuca... Can you get more pics of your engine shots?? thanks man

[Winger4800]

It's on back order from gm parts direct. I'm still waiting for mine.....


Feb 18, 2005-ordered
$47.39 total with tax
Special Ordered item

[novass]

I took me from jan 12 till feb 19. to get mine

[bluegrassz]

Originally posted by nick418
im thinkin about doing this.. Deletin my smog.. I want my engine bay to look cleaner, obvisouly i dont care about how clean our air is But i called a chevy dealership up and there selling it for 60 bucks (for the pulley) Im deff gonna have to get it on GMdirect

You dont need a pulley to delete the smog. Just remove the pump and run a smaller belt. If you delete the a/c, then you will need the the a/c delete pulley.

[Abubaca]

You dont need a pulley to delete the smog. Just remove the pump and run a smaller belt. If you delete the a/c, then you will need the the a/c delete pulley.

True, but most people that want to clean up the engine bay do it for appearance, and that method "appears" ghetto. Nah, I'm just messin' with ya. Seriously though, I prefer the look of the delete pulley to a big empty bracket.

I think this pic might show it best:

[Abubaca]

Bluegrassz: Don't get me wrong, using your cutting technique, it doesn't look to bad, I just don't like the big empty bracket.

[bluegrassz]

Originally posted by Abubaca
Bluegrassz: Don't get me wrong, using your cutting technique, it doesn't look to bad, I just don't like the big empty bracket.

I understand what you are saying.


I need to get some engine bay pics posted. Ive not got around to taking any pics. The key to cutting the bracket is cutting it in the right place. If done right, it looks factory and you dont really miss anything.

I wish it was a little warmer here. I would pull the camaro out of the garage and take some pics. I need to finish my overflow tank install also. I mounted a summit unit in front of the radiator support. Then removing the old one on the strut mount. With the stock overflow out of the way, the a/c and smog gone, It cleaned that side up a bit.

[Spdfrk1990]

Is it just me or does anyone else think our cars look goofy without the overflow bottle in the original spot and the wiper bottle. The fenders dont look right without them.

[bluegrassz]

Originally posted by Spdfrk1990
Is it just me or does anyone else think our cars look goofy without the overflow bottle in the original spot and the wiper bottle. The fenders dont look right without them.

Must just be you!!! lol. j/k

It depends on taste. Im going for a uncluttered look. If I had the time, I would smooth out the strut towers and repaint the engine bay. There are a few pics of a members car that done it. I cant remember the name.

Im not running a washer fluid tank either. Not to mention a vac canister, cruise control, or even a heater box. lol.

[Spdfrk1990]

Im not running any of that either but im keepin the bottles and i still might run a blower motor.

[Winger4800]

Originally posted by Abubaca
Bluegrassz: Don't get me wrong, using your cutting technique, it doesn't look to bad, I just don't like the big empty bracket.

where did you get those wire looms for the plug wires???