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why you shouldn't use a vice to press in wheel studs

rodgling - 16/1/13 at 11:01 PM

I was just saying "this vice could probably take this sort of load every day for a hundred years"... and then it proved otherwise.

NigeEss - 16/1/13 at 11:05 PM

Doh !

britishtrident - 16/1/13 at 11:07 PM

The tradditional way is to pull them in with a nut and suitable packing spacers.

Peteff - 16/1/13 at 11:21 PM

A piece of conduit and a couple of washers does the job nicely.

nick205 - 16/1/13 at 11:31 PM

Bet that made you jump when it went

rodgling - 16/1/13 at 11:36 PM

quote:
Originally posted by britishtrident
The tradditional way is to pull them in with a nut and suitable packing spacers.

I plan to use the other traditional method for the rest, i.e. pay a man to do them when I get a garage to press the hubs onto the uprights...

Charlie_Zetec - 16/1/13 at 11:49 PM

I did the exact same thing not too long ago when replacing a U/J in my Defender 90 front propshaft....

Not sure if it had anything to do with the fact I was hanging off the end of a 4' scaff tube on the tightening arm of the vice?!?

snakebelly - 17/1/13 at 02:48 AM

Bit of plastic metal and a couple of cable ties will fix that.........

balidey - 17/1/13 at 09:56 AM

Hope you got your toes out of the way in time.

Although I'm more concerned about the other items on your desk.
A Jamie Oliver mug and a large pink dildo

rodgling - 17/1/13 at 10:28 AM

quote:
Originally posted by balidey
Hope you got your toes out of the way in time.

Although I'm more concerned about the other items on your desk.
A Jamie Oliver mug and a large pink dildo

:-) Not my desk... can't answer for either of those items. Toes are fine thanks. The floor isn't quite as flat as it used to be.

adithorp - 17/1/13 at 12:21 PM

Are you sure they're right for the hubs? They really shouldn't be that tight to break a vice. I've usually use a hammer to knock them in/out and it doesn't need much force.

pewe - 17/1/13 at 12:55 PM

I reckon that if it's an old vice it's probably stress fractured as the force goes through much the same path every time.
No doubt some metallurgist on here will verify or correct this shortly.
Did something similar on an old vice which had belonged to an uncle. Vice must have been at least 60 years old and had a hard life.
Cheers, Pewe10

nib1980 - 17/1/13 at 12:56 PM

you have a computer in your workshop! RESPECT

rodgling - 17/1/13 at 01:34 PM

quote:
Originally posted by adithorp
Are you sure they're right for the hubs? They really shouldn't be that tight to break a vice. I've usually use a hammer to knock them in/out and it doesn't need much force.

Yeah... good question. The knurl on the studs is 14.3 mm, the holes are 14 mm. Which is quite a bit of interference (12 thou), but as far as I can tell, that's what everyone does when re-drilling Subaru/Nissan hubs. I suspect this may be because 14.1 or 14.2 mm drill bits are hard to come by, not because it's ideal.

But it seems just about OK, don't think it will damage the hub?

[Edited on 17/1/13 by rodgling]

dhutch - 17/1/13 at 06:15 PM

I have to admit, the only time ive changed studs (both on trailers to be fair) they have just tapped in the first bit and pulled in with the the nut the last bit when putting the wheel back on.

Seen someone break a vice once before, but he was a bit of a brute, and he had mullered it up on a subframe before wrenching said subframe all over the shop. Shame, becuase what was a nice record got replaced with the cheap Chinese shite.

Daniel.

fullpint - 17/1/13 at 06:48 PM

4 pairs of ear muffs at hand
If you were near-by you could pop over and use my 20 tonne press. That should do the job

adithorp - 17/1/13 at 07:04 PM

quote:
Originally posted by rodgling

quote:
Originally posted by adithorp
Are you sure they're right for the hubs? They really shouldn't be that tight to break a vice. I've usually use a hammer to knock them in/out and it doesn't need much force.

Yeah... good question. The knurl on the studs is 14.3 mm, the holes are 14 mm. Which is quite a bit of interference (12 thou), but as far as I can tell, that's what everyone does when re-drilling Subaru/Nissan hubs. I suspect this may be because 14.1 or 14.2 mm drill bits are hard to come by, not because it's ideal.

But it seems just about OK, don't think it will damage the hub?

[Edited on 17/1/13 by rodgling]

9/16 drill too big? 14.2mm if i recall

rodgling - 17/1/13 at 07:17 PM

quote:
Originally posted by adithorp
9/16 drill too big? 14.2mm if i recall

14.29 apparently, maybe a touch too big. I could get a 14.2 or 14.1 drill easily enough, but I've drilled them at 14 now, not sure there's any point going to the effort of enlarging them - a hydraulic press will get the studs in easily.

I think it's only worth enlarging if there's a significant risk of damage to the hub from the interference? I've read that 5-20 thou is acceptable, I'm at 12 so I reckon this is probably OK?

Stott - 17/1/13 at 08:49 PM

quote:
Originally posted by nib1980
you have a computer in your workshop! RESPECT

Nah, he's got a vice 'n tools in the computer room!

I used a press for my front studs as the hubs were off and used nuts and spacers for the rears. They were very hard to draw through, IIRC they were Rally Design studs (Sierra hubs)

[Edited on 17/1/13 by Stott]

rodgling - 17/1/13 at 10:22 PM

Actually, it's a friend's front room - he moved to a house without a garage so his biggest and nicest room is now a workshop complete with lathe and milling machine. He has an understanding wife. :-)

rodgling - 25/1/13 at 03:07 PM

Finally, got them properly pressed in:

Apparently it took 5 tons to get the studs in, I guess I don't need to worry about them spinning. Lets hope I made them long enough...

snakebelly - 25/1/13 at 03:26 PM

You could pick up an adjustable reamer within that range and open them up.

[Edited on 25/1/13 by snakebelly]

Slimy38 - 25/1/13 at 04:02 PM

quote:
Originally posted by rodgling

Apparently it took 5 tons to get the studs in, I guess I don't need to worry about them spinning. Lets hope I made them long enough...

Let's hope you put them in the right holes for your particular application!

I assume the other set of five are for a slightly different PCD?

rodgling - 25/1/13 at 04:14 PM

Yeah, it started life as a BMW 5x120 hub, but there are no lightweight wheels for that fitment. So I milled some new holes at 5x114.3 in order to use some lovely ultra-lightweight forged magnesium JDM wheels. Definitely the right holes!