Bushing removal

[digr]

This trick is well known I am sure but for those that don't here it is, Today I had to replace the bushings in my drive motor on my plow. Most any bushing in a blind hole can be removed by packing the bushing with grease then pounding a shaft with a sliding fit into the bushing forcing the bushing out. Most of the time you can find a bolt or something the right size but in this case I had to turn one on the lathe. Wood doweling will also work. The pics were taken after the grease was cleaned off.

[loopyhomefabricator]

I'll have to remember that one...
I usually strip out things like salvageable bushes/bearings etc. before I toss something into the scrap.
Another method (which is only really suited to extracting scrap bushes from blind holes) is to find a taper tap that just nicely bites into the bush (you don't need, or particularly want full thread depth), grip it's drive square in the bench vise and gently screw the bush onto it. The tap will jack the bush out as soon as its nose bottoms out in the hole.
Particularly useful for the brass bush in the rear cover of a Lucas dynamo, which is an awkward little sod to get at otherwise.
Cheers, Loopy.

[Cavalry]

I was taught this trick many years ago to remove pilot bushings on crankshafts. Another practical example of its use.

[cutter]

Added to Tricks & Tips. Thanks, digr.

[moe1942]

I don't like the mess so I use a tap...

[digr]

Yup Yup I like the tap idea! You learn something new everyday. In this case tho I was robing Peter to pay Paul.

[MXtras]

I will tap them with threads and then use a bolt to push them or pull them out. The grease idea works, but it can take a lot of grease for some assemblies and it can make a mess.

Also, grease, O2 and severe pressure can create a small explosion, right?

Scott

[AmickRacing]

Originally Posted by MXtras

Also, grease, O2 and severe pressure can create a small explosion, right?

That just makes it come out faster is all...

[Lu47Dan]

MX , I have known about and used this trick so many times I have lost count , and never have I had an explosion or even close to one . Sure if you did this in a HIGH oxygen environment it might happen but who can afford to produce a High oxygen environment to let YOU test it :evil:
Loopy , will have to file that away in tricks area of my mind , might come in handy someday

[mtnkrake]

something I've used to remove pilot bushings is wet toilet paper. Works just like grease but with no mess.