The Shop > Tools

Lathe Disaster!

<< < (3/4) > >>

John Stevenson:
Nick,
Make sure the gear you are getting has the same profile teeth as the original.

Harrisons are usually 14.5 Pressure Angle gears and modern stuff like from HPC is 20.

Very hard to tell just by looking but roll two matching gears together and they should be smooth, get one mis matched and it will be lumpy.

.

SPiN Racing:
My lathe actually has a couple holes in the shaft for the tool that it didnt come with.

The first time I removed the three jaw I simply stuck the chuck for the 4 jaw's cross handle into one of the holes (snug fit) then put the chuck in the 3 jaw, leaned on it a little and it didnt budge. I then rolled it so the 4 jaw cross handle was just about to hit the metal of the housing, and then lightly, gave it a good yank, speed wise not force. After the 4 jaw chuck hit the housing of the lathe's gears and motor, three or 4 tries into it, the 3 jaw unscrewed.

Often some of the car bolts and things I need to undo are horribly tight. Im ducking Bog's monitor, as well as everyone else who throws them at me... BUT,  if you carefully give a light rap with a hammer to things, in a manner that it wont bend them, or distort things, it might be just that shock to break it free. Impact hammer style. Sharp rap without much force.

NickG:
Stew,

Have been trying to think of a way myself! Your method might work, the nut would have to be on the chuck end though so it tightened against the spindle as I hold it and try to loosen the chuck! Either that or a left hand thread! Will have to try that route. I have some big lengths of studding.

John, thanks for that, I think with the place being nearby I will just take the two gears with me to see what his are like.

Spin, will have to check for any holes, where abouts were the holes on yours?

Cheers

Nick

SPiN Racing:
Here is a image of my chuck... you can also see the little arm pieces that keep it from un-screwing in reverse.

NickG:
Ah, that's handy, there's nothing like that I can see on mine. There is a small hole on the other end but not very deep. It promptly put a right angle bend in the piece of 3/16" silver steel I tried to use! I know, it's only a small dia but this thing is tight!

Navigation

[0] Message Index

[#] Next page

[*] Previous page