Fitter and Turner Question

Submitted: Thursday, Nov 07, 2013 at 15:33
ThreadID: 105036 Views:1506 Replies:7 FollowUps:9
This Thread has been Archived
I'm about to change the studs on the spare wheel mounting bracket to accommodate different wheels. This will involve drilling new holes for the new studs. The knurl dia on the three studs varies 15.2-15.4mm, the mounting plate is 8mm thick and I don't have access to a press. What is the suggested hole diameter to drill?
Back Expand Un-Read 0 Moderator

Reply By: Member - Rosss - Thursday, Nov 07, 2013 at 15:52

Thursday, Nov 07, 2013 at 15:52
Drill 15 mm, it will always drill a little bit bigger, Shouldn't need a press, just hammer them in, not as if you are going to drive on it.
AnswerID: 521041

Follow Up By: IronMan - Saturday, Nov 09, 2013 at 08:42

Saturday, Nov 09, 2013 at 08:42
And use some kind of retainiing compound. I use Loctite 680 because it will (should) seal the join, lessening the chance of water ingress and rust, and nothing in the world will get that stud loose!
0
FollowupID: 801789

Reply By: Ross M - Thursday, Nov 07, 2013 at 16:00

Thursday, Nov 07, 2013 at 16:00
15 mm or 19/32 drill. Both will drill bigger than the nominal size. Test on a pre drill first or the size may be "bugger".
Don't you have a press with a wooden handle? ie, an American screwdriver! Ball pein style.

If tight it may require a larger wooden handle unit.

Cool studs in freezer first and have plate hot in sun if possible that will assist.

Cheers
Ross M
AnswerID: 521042

Follow Up By: Member - Rosco from way back - Thursday, Nov 07, 2013 at 16:12

Thursday, Nov 07, 2013 at 16:12
May be time to bring out the FBH ... ;o)
0
FollowupID: 801648

Follow Up By: Member - Rosss - Thursday, Nov 07, 2013 at 16:41

Thursday, Nov 07, 2013 at 16:41
Its actually an adjusting tool, not a FBH
0
FollowupID: 801650

Reply By: Herbal - Thursday, Nov 07, 2013 at 16:43

Thursday, Nov 07, 2013 at 16:43
Well, knock me down with a feather...I think every Tom, Dick and Harry around here is named Ross :)

Ross, as Ross said and also as Ross said, 15mm should be just fine.

As Ross said, Ross, do a test drill first. You don't need a press, but as Ross said you might use a FBH.

Might I suggest using a drill press. You really need the hole to be straight. You will have heartache if one of the new studs is on an angle.
AnswerID: 521046

Follow Up By: Herbal - Thursday, Nov 07, 2013 at 16:50

Thursday, Nov 07, 2013 at 16:50
Sorry...My bad :)

Spare wheel bracket...angle not so important...Drill holes, hammer in studs, uncs ya bobble.
0
FollowupID: 801651

Follow Up By: Member - Rosco from way back - Thursday, Nov 07, 2013 at 17:00

Thursday, Nov 07, 2013 at 17:00
Yes ......... I was thinking the ares have it sown up.
0
FollowupID: 801653

Follow Up By: Ross M - Thursday, Nov 07, 2013 at 20:39

Thursday, Nov 07, 2013 at 20:39
So far it is Ross by the power of 3.

Oh and Herbal! it is Bobs your Aunte now with modern medical procedures so common. Some the Aunties can swing a big hammer too.
0
FollowupID: 801662

Reply By: Member - Ross N (NSW) - Friday, Nov 08, 2013 at 10:17

Friday, Nov 08, 2013 at 10:17
I haven't anything useful to add by way of advice but I thought a tilt at the record for number of Ross's in a post worth trying for.
Ross
AnswerID: 521096

Follow Up By: Member - Rosco from way back - Friday, Nov 08, 2013 at 10:21

Friday, Nov 08, 2013 at 10:21
Go for it cobber ... the more of us the better.
So it's now up to RE4.
0
FollowupID: 801708

Reply By: olcoolone - Friday, Nov 08, 2013 at 12:53

Friday, Nov 08, 2013 at 12:53
The size hole you have to drill will have to be the same size as the shank, this will give the splines maximum grip in the hole.

But seeing it's only a spare wheel carrier the tolerances can be a bit more with no problems, try +0.1-0.2mm
AnswerID: 521109

Reply By: Best Off Road - Friday, Nov 08, 2013 at 13:34

Friday, Nov 08, 2013 at 13:34
Pay a mechanic you old tight arse :-)
AnswerID: 521113

Follow Up By: Member - Rosco from way back - Friday, Nov 08, 2013 at 14:06

Friday, Nov 08, 2013 at 14:06
Go and find an old boot to ...... ;o)
0
FollowupID: 801732

Reply By: Member - Alastair D (NSW) - Saturday, Nov 09, 2013 at 07:18

Saturday, Nov 09, 2013 at 07:18
Rosco,
I would suggest that you drill the hole to the diameter of the stud as the splines are normally set to the correct distance proud of the shaft. Use a nut on the thread packed with washers if necessary to pull the stud in. This will help to keep things straight and stop bounce when you tap, not hammer the stud. Normally you will find the nut will tighten a little bit without great effort after each strike.

When drilling make sure you start small and work up so the last drill size is only removing a small amount. This will reduce the likelihood of getting the hole the wrong size and shape.

Cheers
AnswerID: 521153

Follow Up By: Brian 01 - Saturday, Nov 09, 2013 at 08:32

Saturday, Nov 09, 2013 at 08:32
Best advice yet delivered.
0
FollowupID: 801787

Sponsored Links

Popular Products (13)