I am trying to remove a pilot bushing with the hydraulic method. I used this method successfully the last couple times with pilot needle bearings but this bushing is not budging. I am soaking toilet paper with water and packing it into the cavity, then hitting a snug fitting socket and extension with a 2x4 block and a hammer. I have a 2 pound slide hammer with pilot bearing adapters at my other shop and may have to wait and try it. Or, I can cut slots with a hack saw blade and then chisel it. Any other suggestions? Thanks!
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TP and a drift punch usually works. I have stuffed wet paper in there and kept it wet w a spray bottle, the wetter the better....
P.S... Usually the TP will fire out at explosive speeds... Hurts your hand.
I got the bushing out. I cut some slots with the hacksaw blade and then started chiseling on it. It just kind of broke up.
The simplest way for me is to thread it with a tap. When the tap bottoms out it will lift out the bearing.
From my small block Chevy days we would pack the pocket with grease and use an old input shaft or a plastic clutch alignment tool and a hammer. Worked perfectly every time!
@panteradoug posted:The simplest way for me is to thread it with a tap. When the tap bottoms out it will lift out the bearing.
Now that the bushing is out, I can see that tapping it and driving out with a small bolt is the most practical way to do it.
@stevebuchanan posted:Now that the bushing is out, I can see that tapping it and driving out with a small bolt is the most practical way to do it.
It is the least traumatic but you need to have the tap and bolt to do it. It's one of those "school of hard knocks" lessons.
It is kind of hard to do with any kind of a roller bearing in there.
You really want to reduce the amount of any kind of pounding on the crankshaft. If you chew up the seating pocket for the new bearing, you have chewed up the crankshaft. You don't want that. I think that is obvious?
The few times that I have had to change the bearings, I anticipated needing a bolt once the bearing was threaded but what happened was that the tap was enough to jack it out. Caution should prevail there though.
You do not want to break off the tap in the bearing.
Please edumicate us on what the "toilet paper method" is. have not heard that one before.
Dip several pieces of toilet paper in a bowl of water and pack it into the hole in the bushing. Keep doing this until the cavity and hole are completely packed. I used a 13mm socket and extension to then compress the wet toilet paper by hitting the extension with a hammer cushioned by a 2x4. The socket made a nearly perfect seal. The hydraulic compressions push the bushing out. Grease works about the same. I actually switched to grease and had no luck with it either. Here it is with the bushing out.
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thanks Steve. Very interesting!
@stevebuchanan posted:Dip several pieces of toilet paper in a bowl of water and pack it into the hole in the bushing. Keep doing this until the cavity and I actually switched to grease and had no luck with it either. Here it is with the bushing out.
I would predict that it is a waste of time.
You are also pounding on the thrust bearing which is not really a good idea. You measure the clearance on that internally in thousands of an inch. Leave it alone.
You run the risk of being a bull in a china shop.
The old guy with all the grey hair told you so.
Well, the pounding has already been done. Did I mess up my new motor?
Not likely.
@stevebuchanan posted:Well, the pounding has already been done. Did I mess up my new motor?
Only time will tell but if you didn't I'm sure you will have other opportunities?