Pilot Bearings 101 - JeepForum.com

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post #1 of 24 Old 01-27-2008, 09:46 PM Thread Starter
Opihi59
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Pilot Bearings 101

I have never been able to keep up with all the "special" tools I need for most of the stuff I do so have been fabricating what I need as the situation arises. So making a useful pilot bearing puller can be a simple task. The snout of the AX15 is large enough you can use a flange bolt, choose one as large as you can find that will fit in the pilot bearing, one with clean smooth threads such as this. next thing to do is find a handy hefty steel bar with a hole drilled in it that will fit the bolt, and span across the flywheel, then you put the bolt in the pilot bearing, head first, thread the nut on it such as this shot: then you tighten up the nut and it pulls out the pilot bearing. Photo of the "pull" in progress with pilot halfway out, you can see at this point I added in 2 of the flywheel bolts to provide some standoff: This next image shows the pilot bearing pulled, on the backside of the puller metal plate. Note that I added in a nut inside the bore of the pilot bearing ID to wedge the flange bolt against one side to keep it from popping loose during the pull: It only took a few minutes to find the stuff I needed laying around and then about 10 minutes to set it up and pull the pilot bearing. I'm not sophisticated enough to have a real pilot bearing puller. Hopefully this will help someone fabricate a ghetto style pilot bearing puller, I have made several others but the snout on the AX 15 is so large it is easy to do with just a flange bolt. I will submit another string on driving in a new pilot bearing as I messed up the first one........

Edit--here it is-- http://www.jeepforum.com/forum/f12/p...lation-513450/


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We will be going Metric every inch of the way.
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yes I'm a some guy and have always put gasket sealer on my surfaces before mating
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Last edited by Opihi59; 05-15-2010 at 11:26 PM.
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post #2 of 24 Old 01-27-2008, 10:19 PM
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I like this! This is K.I.S.S. in it's purest form!!!
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post #3 of 24 Old 01-27-2008, 10:32 PM
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Quote:
Originally Posted by Opihi59
I have never been able to keep up with all the "special" tools I need for most of the stuff I do so have been fabricating what I need as the situation arises. So making a useful pilot bearing puller can be a simple task. The snout of the AX15 is large enough you can use a flange bolt, choose one as large as you can find that will fit in the pilot bearing, one with clean smooth threads such as this. next thing to do is find a handy hefty steel bar with a hole drilled in it that will fit the bolt, and span across the flywheel, then you put the bolt in the pilot bearing, head first, thread the nut on it such as this shot: then you tighten up the nut and it pulls out the pilot bearing. Photo of the "pull" in progress with pilot halfway out, you can see at this point I added in 2 of the flywheel bolts to provide some standoff: This next image shows the pilot bearing pulled, on the backside of the puller metal plate. Note that I added in a nut inside the bore of the pilot bearing ID to wedge the flange bolt against one side to keep it from popping loose during the pull: It only took a few minutes to find the stuff I needed laying around and then about 10 minutes to set it up and pull the pilot bearing. I'm not sophisticated enough to have a real pilot bearing puller. Hopefully this will help someone fabricate a ghetto style pilot bearing puller, I have made several others but the snout on the AX 15 is so large it is easy to do with just a flange bolt. I will submit another string on driving in a new pilot bearing as I messed up the first one........

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It is what Jeeples has *PARTIALLY* stated.
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post #4 of 24 Old 01-27-2008, 10:41 PM
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OK...I just tried that and all I got was red X's! What's with that?
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post #5 of 24 Old 01-27-2008, 10:48 PM
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Only us super secret internet ninjas with no life can click free things...















Ok, actually when he posted the pic links he used the [url]-----[/ url] tags instead of the [img]------[/img] tags.

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It is what Jeeples has *PARTIALLY* stated.
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post #6 of 24 Old 01-28-2008, 12:56 AM
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I liked the secret ninja explanation myself.

OP, good little write up there.

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post #7 of 24 Old 01-28-2008, 08:58 AM
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good write up, usually i do the grease trick. the last one i did got cut out with a sawzall... that was fun...

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post #8 of 24 Old 01-28-2008, 11:27 AM Thread Starter
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All--if the images didn't work, please let me know how to improve. I use photobucket, should I be using the img tags instead of the url tags for this forum? Without photos, it isn't very helpful to the forum. I will re-post the images tonite, the firewalls at work will not allow me to access photobucket.

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Quote:
Originally Posted by Brian4.2 View Post
We will be going Metric every inch of the way.
Quote:
Originally Posted by 40dog View Post
yes I'm a some guy and have always put gasket sealer on my surfaces before mating
Quote:
Originally Posted by Virjeep View Post
You should go to Pirate. I hear they are real smart over there. You'd fit right in.
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post #9 of 24 Old 01-28-2008, 07:00 PM
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Quote:
Originally Posted by Opihi59
All--if the images didn't work, please let me know how to improve. I use photobucket, should I be using the img tags instead of the url tags for this forum? Without photos, it isn't very helpful to the forum. I will re-post the images tonite, the firewalls at work will not allow me to access photobucket.

The short answer is yes, use the IMG tags for this forum.


However at this point in time the pictures you post will still not show up, you have be a member for at least 30 days AND have at LEAST 50 posts.


For now, I wouldn't worry about it.

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Quote:
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It is what Jeeples has *PARTIALLY* stated.
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post #10 of 24 Old 01-28-2008, 07:14 PM Thread Starter
Opihi59
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Thank you, I will do my best to use IMG tags, hopefully can figure that out. (I'm not smart but I can lift heavy things....) Computers haven't been my forte.

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Quote:
Originally Posted by Brian4.2 View Post
We will be going Metric every inch of the way.
Quote:
Originally Posted by 40dog View Post
yes I'm a some guy and have always put gasket sealer on my surfaces before mating
Quote:
Originally Posted by Virjeep View Post
You should go to Pirate. I hear they are real smart over there. You'd fit right in.
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post #11 of 24 Old 01-28-2008, 07:19 PM
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or you can fill it up with grease and stick a snug bolt or somethin in there, and give a couple blows with a hammer and the bearing will pop right out

And I thought my other hobbies were expensive!

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post #12 of 24 Old 01-28-2008, 07:28 PM
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Quote:
Originally Posted by boaty1
or you can fill it up with grease and stick a snug bolt or somethin in there, and give a couple blows with a hammer and the bearing will pop right out
I've tried that a few times; all I ever made was a mess.

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post #13 of 24 Old 01-28-2008, 11:51 PM Thread Starter
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I have heard about the fill with grease and hammer in a snug fitting dowel to force out the pilot bearing with hydraulic pressure. I've never had the fortitude to try this though. Somehow it would seem a rather spectacular event, and in my case, would likely result in grease everywhere. It must be a viable alternative though, as I have read about it many times, just never tried it. Now maybe a tiny wad of semtex or C4, hmmmmmmm.

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Quote:
Originally Posted by Brian4.2 View Post
We will be going Metric every inch of the way.
Quote:
Originally Posted by 40dog View Post
yes I'm a some guy and have always put gasket sealer on my surfaces before mating
Quote:
Originally Posted by Virjeep View Post
You should go to Pirate. I hear they are real smart over there. You'd fit right in.
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post #14 of 24 Old 01-29-2008, 12:12 AM
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This little beauty looks like just the thing, if you want to go the grease/hydraulic route. I've had one in my toolbox for five years and never used it. You just screw it into the pilot bushing, hit the zerk fitting with your grease gun and wait for the pilot to fall out.

You can't teach an old dogma new tricks.
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post #15 of 24 Old 01-29-2008, 12:53 AM
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Quote:
Originally Posted by Opihi59
I have heard about the fill with grease and hammer in a snug fitting dowel to force out the pilot bearing with hydraulic pressure. I've never had the fortitude to try this though. Somehow it would seem a rather spectacular event, and in my case, would likely result in grease everywhere. It must be a viable alternative though, as I have read about it many times, just never tried it. Now maybe a tiny wad of semtex or C4, hmmmmmmm.
HAHAHA!!! insert tiny wad of c4, light it on fire and have the undesireable neighbor hit it with a punch and hammer. Famous quote: "sure it's safe!"
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