Spigot bush removal

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Originally Posted by lewy

Just wondering why the replacement bush has to be soaked in oil[overnight] rather than just dipped into oil and inserted.

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As noted, the new bush is porous and needs to be oil soaked for lubrication purposes. Just dipping it won't force oil into the "pores" of the bush.

Thanks for that,once again i have learned something from here:D

I have seen a vid on youtube showing how to remove bush using hydraulic pressure.


1) Fill the area inside the bush with EP grease.


2)Select shaft that just fits inside bush, can be an old socket with ext piece, which blocks the hole in socket

3) Place shaft/socket in bush and hit end with hammer, keep going until bush just starts to come out.


4) Check grease level and replenish if needed as some will squeeze out.


5) Keep going until bush drops out.




The vid was for discovery 1, but I assume it will work on disco 2.


A very simple method.


Jo

Quote:

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Originally Posted by jo_macaire

I have seen a vid on youtube showing how to remove bush using hydraulic pressure.


1) Fill the area inside the bush with EP grease.


2)Select shaft that just fits inside bush, can be an old socket with ext piece, which blocks the hole in socket

3) Place shaft/socket in bush and hit end with hammer, keep going until bush just starts to come out.


4) Check grease level and replenish if needed as some will squeeze out.


5) Keep going until bush drops out.




The vid was for discovery 1, but I assume it will work on disco 2.


A very simple method.


Jo

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Jo, I tried this method with my disco with no success. I've had multiple successes with a ball bearing removal but not my bush as i believe the wall thickness or surface area is not enough to push it out. I used the tap method twice with the difference being I put an approx 10mm ball inside against the crankshaft so the tap can push against that and not score the end of the crankshaft like it happened to me first time!

here you go https://www.youtube.com/watch?v=qAqe...14F25363FC7E0F

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Originally Posted by petmic

here you go https://www.youtube.com/watch?v=qAqe...14F25363FC7E0F

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Thanks for that. I even machined up a snug fitting shaft to hydraulic out the bush but even then it wouldn't budge. In tight installations, people will no doubt have to use a tap as mentioned as there is very little surface area for the hydraulic action to take place.


Cheers, Jayden

Quote:

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Originally Posted by lewy

Just wondering why the replacement bush has to be soaked in oil[overnight] rather than just dipped into oil and inserted.

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Bush is made from "Sintered Bronze" which is porous like honeycomb so it takes time for the oil to penetrate it if you don't use the pressurising method with forefinger and thumb as Beautey describes!

Cheers, Mick.

you can also use small strips of newspaper soaked in oil.

So you just wipe excess oil off and tap it in? I always thought had to go in dry as otherwise it will rotate in the groove. Sorry to bring this thread back but I'm having the same problem getting it out. Hydraulic method ain't working.

I thought about threading a tap in it or using a hacksaw blade to do same as the chisel trick. I like the tap idea, looks good.

Thanks.

Quote:

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Originally Posted by Fausto79

So you just wipe excess oil off and tap it in? I always thought had to go in dry as otherwise it will rotate in the groove. Sorry to bring this thread back but I'm having the same problem getting it out. Hydraulic method ain't working.

I thought about threading a tap in it or using a hacksaw blade to do same as the chisel trick. I like the tap idea, looks good.

Thanks.

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you can also mae a hoo nife out of a hacksaw blade and cut it away.

Same principle as hacking it up with a sharp chisel just quieter and a bit more time consuming. its only sintered metal and it scrapes away real easy once you get into it.