Squeeky air/vacumn pump...Anyway to lube it? - Ford Bronco Forum
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 02-27-2004, 09:39 AM Thread Starter
Registered User
Join Date: May 2003
Location: Silver Spring, MD
Posts: 121
iTrader: (0)
Squeeky air/vacumn pump...Anyway to lube it?

The air/vacumn pump (below the alternator) is squeeling occasionally. Is there any way to lube the bearings or do I need a new air pump?

Anybody know where to get a new one if I need one?



Bakes5 is offline  
Sponsored Links
post #2 of 5 (permalink) Old 02-27-2004, 10:32 AM
TTB Hater of course
Join Date: Mar 2003
Posts: 3,155
iTrader: (0)
You can get a new one from any parts house. I've heard of people gutting them and lubing the bearings, but I never saved the details. Steve83 might know.

Totally Twisted and Broke makes me a saaaad Panda

"You can almost see the dismay on Phil, Paul & Bob's faces when Trautwig is talking....and the pause in their voices after he stops....after which they pick-up the pieces of his non-sensical commentary and continue with their telling of the story that is the Tour de France! "
TTBlows is offline  
post #3 of 5 (permalink) Old 02-27-2004, 11:40 AM
Living in Obscurity
SMOOTH's Avatar
Join Date: Jun 2003
Location: Holly Springs, NC
Posts: 2,249
Bronco Info: 88 Eddie bauer 302 (Gt-40 heads, Ford Racing Short Headers, Comp Cam, Bootyfabbed FIPK) 6 inch Super
iTrader: (2)
Gutting it is easy, I did it myself in the parking lot if my apartment complex with basic tools. Here's ya go:

First, loosen the bolts on the pulley, then remove the air pump from your truck (you do this because it's hard to take the bolts holding the pulley on, off, when there isn't the belt holding the pulley in place). The back of the air pump will have several bolts, take all those out. Then pry the back of the pump off, it will take some effort, but I promise it does come off. You will see two metal dowels in teh casing holding the back on, once you get past those, it will still hang up, just keep working it will come off. Once it's off you will see that the back has a metal post that ran down the middle of the air pump attached to it. Inside you will see three fins with three bearing sleeves type things on each fin, and these fins sit inside what looks like a coffee can that sits inside the airpump casing. Basically, the fins bearing sleeves are on the metal post from the backing (imagine a door hinge that would attach to the wall, and to two doors, imagine how three mounting plates would attach to the post used on the door hinge, same principal), the fins stick out of three slots in the metal can, the metal can spins with the pulley, the fins push the air that is inbetween the can and the casing wall. To gut the air pump, you need to get the three fins out. You will see they will not fit out the hole at the back of the air pump with the bearing sleeves attached. So, you have to break the sleeves off of the fins to remove them. I know all of this sounds complicated, but I promise it's not, it's very easy, and again, parking lot, basic tools. Start with one fin, try to move the other two outta the way, put the fin in one of the slots in the coffee can, place a flathead screw driver at the point where the top bearing sleeve meets the fin, use a hammer and keep hitting until the bearing sleeves detaches from the fin. Once it's off, get it out of the air pump. Do the same thing on the middle bearing sleeve. Now, the bottom one is a little more difficult, but not bad. Position the fin you are working on so the bottom bearing sleeve (the one closes to the pulley) is resting ontop of another bearing sleeve, but the fin itself has some clearance to the back of the air pump. Use a hammer and hit the fin until the bearing sleeve breaks loose. With all three bearing sleeves off, you can get the fin out. Repeat for the second fin. Now for the third one, do the same foe the top and middle bearing sleeve. The bottom one is a little tricky because there are no more bearing sleeves in the coffee can. So, put two of the broken bearing sleeves back into the coffee can, stack them ontop of each other, then put the bottom bearing sleeve of the last fin on top of them. Hit with hammer, break loose, and everything will come out. Now you air pump will not move any air. You could get some grease down there (I'm sure there's an easy way, but I can't explain because mine didn't need greasing). Put the back, back on, put back in place. Looks like it is functunal, but it's not. BTW, if it's a concerned, my new engine with GT-40P heads, comp cam, and headers still pass Emmissions test here in GA, so I wouldn't sweat that.

88 bronco T-Top, 302. 6 inch suspension lift, 35's.
92 Centurion 7.3idi, Banks non-wastegated turbo, 35's.
82 E350 Cabriolet "Vanchero" 460/C6/4.11posi.
"Never underestimate the predictability of stupidity."
- Bullet-tooth Tony and his friend, Desert Eagle .50
SMOOTH is offline  
post #4 of 5 (permalink) Old 02-27-2004, 04:25 PM
Fireguy50's Avatar
Join Date: Apr 2003
Location: Michigan
Posts: 11,454
Bronco Info: rusty
iTrader: (19)
just do this:
Fireguy50 is offline  
post #5 of 5 (permalink) Old 02-27-2004, 05:42 PM
Ex Navy Nuke
RLKBOB's Avatar
Join Date: Mar 2003
Location: Petersburg, MI
Posts: 5,783
Bronco Info: 1990 EB, 357, E4OD
iTrader: (7)
Don't forget what just happened to blown. If you disable the air pump you don't have combustion air for the cat to do its job properly and it may clog up on you. If you do this you should either gut the cat or eliminate it. I'm eliminating all the smog crap with my 351 swap including elimination of the cat while I'm at it.

Bob Kulhanek, My Superford

Hit it harder or get a bigger hammer!!!

Originally Posted by DcSkater602
slap me silly im a mother F^%#$%*($ retard
Originally Posted by Bonzai View Post
Oh yea! Im definitely interested in a rear.
RLKBOB is offline  

  Ford Bronco Forum > Bronco Discussions > 1980-'96 Bronco Tech

Quick Reply

Register Now

In order to be able to post messages on the Ford Bronco Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself. DO NOT USE Gmail.com accounts. If you only have a Gmail.com email please contact the administrator here

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome