spigot bearing

mud_slinger · Post by **mud_slinger** » Thu Oct 26, 2006 7:11 pm

does anyone no how to get a spigot bearin out? tryin to get mine out but dont wana move either way :roll:

wopass · Post by **wopass** » Thu Oct 26, 2006 7:36 pm

internal bearing puller legs on a slide hammer

or pull the flywheel off and drift it out(recomended) remembering to put loctite on the bolts when re-assembling also skim the flywheel while its out

JTop · Post by **JTop** » Thu Oct 26, 2006 7:39 pm

Try Hydralicing it out, fill the back of the crank with grease and drive in a suitibly tight fitting object to force it out.
Try a makeshift slide hammer, grind a notch in a rod that just fits through the bearing, weld a stop on the other end and put a weight on the rod. Fit it to the bearing and wedge it with a screwdriver then slide the weight firmly down the rod
J Top

Sadam_Husain · Post by **Sadam_Husain** » Thu Oct 26, 2006 7:53 pm

I've just managed to get a couple of them out in the past, never had success with the hydrolicing method but the notching of a rod and wedging it into the bearing method worked... I think I had a piece of chain welded to the rod and a block of concrete or something heavy on the end of it? :oops:

mud_slinger · Post by **mud_slinger** » Thu Oct 26, 2006 7:54 pm

got fly wheel off. drift it off? wat that?

Aaron · Post by **Aaron** » Fri Oct 27, 2006 8:52 am

Knock it out of the flywheel using a punch or something through the hole from the back of the flywheel. :wink:

doddzee · Post by **doddzee** » Fri Oct 27, 2006 8:57 am

Aaron wrote:Knock it out of the flywheel using a punch or something through the hole from the back of the flywheel.

Some spigot bearings are located in the end of the crank shaft rather than in the flywheel though :wink:

Moriarty · Post by **Moriarty** » Fri Oct 27, 2006 3:18 pm

If the bearing is in the main shaft, use the hydraulic method. if you dont have a siutable punch that is a sliding fit in the bearing, use something slightly smaller.

You got kids? steal the ballbearings out of the pushbike hub (or buy some, cheaper than having kids...) and sustitute the balls for grease. Insert nearly fitting shaft and whack with large club shaped device. HARD!!

Nearly forgot (getting old...) use SMALL bearings, smaller in dia then the walll thickness of the bearing. Why? Cos as you whack the drift punch (shaft) the balls will displace in the bearing and push the bearing up. If the balls are bigger in dia than the wall thickness of the bearing, they wont go pass the drift punch.

mud_slinger · Post by **mud_slinger** » Fri Oct 27, 2006 4:24 pm

bearing in back of crank shaft. anyone got a small bearing puller i could borrow tomorrow? :roll:

Toyhatsu · Post by **Toyhatsu** » Fri Oct 27, 2006 6:56 pm

I have managed to get one out using the grease method. Worked a treat. I have heard that you can do it by stuffing behind bread behind the bearing and then using a drift the same internal diameter of the bearing. Worth a go I reckon.

mud_slinger · Post by **mud_slinger** » Sat Oct 28, 2006 3:03 pm

got so pissed off at bearin that i smashed it to pieces and now only got outside shell of bearin left and cant get it out. so def need a bearin puller :roll:

Sadam_Husain · Post by **Sadam_Husain** » Sat Oct 28, 2006 3:22 pm

I think you've got the easy bit out :oops:

Toyhatsu · Post by **Toyhatsu** » Sat Oct 28, 2006 3:52 pm

Either that or get a dremel and a tiny little cutting wheel and make a little cut and it will slide out...they can be real little bastards eh

mud_slinger · Post by **mud_slinger** » Sat Oct 28, 2006 4:32 pm

dremel? wat the hell is that

Toyhatsu · Post by **Toyhatsu** » Sat Oct 28, 2006 4:40 pm

A rotary cutting tool. You can get electric ones or those which run on air. The cutting blades are pretty small, about 2cm across and good for getting iin those small places. They are an abrasive disk and cut steel pretty well. Have to take it easy so you don't cut the bearing seating surface.

mud_slinger · Post by **mud_slinger** » Sat Oct 28, 2006 4:44 pm

hmmm true. get my clutch on tues so need to do it asap. wer wood i find them?

Toyhatsu · Post by **Toyhatsu** » Sat Oct 28, 2006 4:55 pm

You should be able to find an electric dremel at a hardware store like bunnings, mitre ten etc. They also do air tools from time to time, but then you would have to have a compressor etc. From memory price is around the $100-$150 mark. Good general tool to have in your arsenal. Getting the cutting wheels can be a bit of a trick, but if you get stumped at the hardware store then you can try an air tool specialist or let your fingers do the walking etc etc . Where abouts are you?

mud_slinger · Post by **mud_slinger** » Sat Oct 28, 2006 4:57 pm

i in chch.

Toyhatsu · Post by **Toyhatsu** » Sat Oct 28, 2006 5:03 pm

bunnings prob best bet, or do you guys have a mitre 10 mega yet?

Toyhatsu · Post by **Toyhatsu** » Sat Oct 28, 2006 5:05 pm

On trade me here. Also called die grinders, which is probably the correct term.

http://www.trademe.co.nz/Home-living/To ... 237433.htm

oldblue · Post by **oldblue** » Sat Oct 28, 2006 5:20 pm

If there is enough room, you could try and run a small run of weld on the inside of the bearing shell, when it cools it will shrink ,thus reducing the outer size of the shell. But do'nt weld the shell to the crankshaft.

mud_slinger · Post by **mud_slinger** » Sat Oct 28, 2006 5:23 pm

now i no wat you mean why didnt you say die grinder 1st? course we have mitre 10 mega we aint that hick :lol:

Toyhatsu · Post by **Toyhatsu** » Sat Oct 28, 2006 6:10 pm

Dremel/Die Grinder interchangeable in my mind I guess. No accounting for what goes on in there. Left canterbury a year ago, couldn't remember if there was a mega then.

spigot bearing

spigot bearing

;-p