DEFENDER2.NET - View topic - My new Sankey trailer build

↓ Advertise on Defender2 ↓

Home · FAQ · New Posts · My Posts · PMs · Search · Members · Map · Calendar · Profile · Donate · Register · Log In

Home > Camping, Caravanning and Holidays > My new Sankey trailer build

Page 5 of 10

Print this entire topic ·

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17353

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Quote:
Any idea why the studs are not half way between the existing ones. I can think of no engineering reason to do it that way?

Another possibility is that if you fit 30mm spacers with the studs equi-spaced to a Defender hub and then fit the standard Boost alloy, the heads of the drive member bolts will foul the alloy wheel. It is possible, although I don't know since I haven't tried, that using this assymetric offset may prevent this from happening by allowing the bolts heads still to fit the relief provided for them on the wheel centre. The spacers I have fitted (which came from Rakeway) have equi-spaced studs so to avoid this probelm I replaced the drive flange bolts with hex-socket-head bolts.

I actually have grave doubts about the suitability of this assymetric design and would personally never fit spacers like this, and I would expect the symmetrical pattern (Rakeway style) to be significantly stronger. Consider how little material there is between the stud in the spacer and its adjacent hub-stud hole ias shown in the photo. It really isn't much at all, especially when you take into account the fact that the counterbore (on the back) for the hex head of the new stud must actually overlap the counterbore for the nut holding the spacer to the hub. I am not sure how thick the spacers in the photo are (not very) but on a thin spacer I would have said that this was a dangerous weakness and that this design is flawed. Certainly I can see no sound engineering reason for them to be like this,

There is no way would I fit spacers of that type to my Defender!

5th Oct 2012 9:24am

me@td5.org

Member Since: 16 Jan 2011
Location: Warwick
Posts: 856

Having looked into spacers so I can fit alloys to my Sankey I have already decided it is too much of a minefield! I could end up spending £100 on a pair (assuming I could sell the other pair to another Sankey owner to get some money back) then source some more Freestyle alloys which are abundant but I would probably want to get refurbed, THEN have to shell out for some tyres.

So I have decided instead to find some new wheels that will just fit. I'm going to head over to Silverline with some callipers to see if the Blindos will clear the hub. I think Mach 5 do.

Seems to be the most cost effective way at the moment.

5th Oct 2012 3:56pm

ken

Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328

Evo Corsa's

5th Oct 2012 4:12pm

me@td5.org

Member Since: 16 Jan 2011
Location: Warwick
Posts: 856

ken wrote:
Evo Corsa's

Do you happen to have some for sale? I noticed you were talking abut putting Mach 5s on yours? I only want 265/75 so they might just work for me..

5th Oct 2012 4:15pm

ken

Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328

Yes I'm about to put some on the Bay but they have tyres on

5th Oct 2012 4:39pm

jasong4110

Member Since: 18 Oct 2009
Location: Henley On Thames
Posts: 268

blackwolf wrote:
Quote:
Any idea why the studs are not half way between the existing ones. I can think of no engineering reason to do it that way?

Another possibility is that if you fit 30mm spacers with the studs equi-spaced to a Defender hub and then fit the standard Boost alloy, the heads of the drive member bolts will foul the alloy wheel. It is possible, although I don't know since I haven't tried, that using this assymetric offset may prevent this from happening by allowing the bolts heads still to fit the relief provided for them on the wheel centre. The spacers I have fitted (which came from Rakeway) have equi-spaced studs so to avoid this probelm I replaced the drive flange bolts with hex-socket-head bolts.

I actually have grave doubts about the suitability of this assymetric design and would personally never fit spacers like this, and I would expect the symmetrical pattern (Rakeway style) to be significantly stronger. Consider how little material there is between the stud in the spacer and its adjacent hub-stud hole ias shown in the photo. It really isn't much at all, especially when you take into account the fact that the counterbore (on the back) for the hex head of the new stud must actually overlap the counterbore for the nut holding the spacer to the hub. I am not sure how thick the spacers in the photo are (not very) but on a thin spacer I would have said that this was a dangerous weakness and that this design is flawed. Certainly I can see no sound engineering reason for them to be like this,

There is no way would I fit spacers of that type to my Defender!

Well, I fitted these spacers over two years ago, they have done over ten thousand miles of rough overland lanes and motorways. I inspect them every year and before major trips and haven't noticed any issues with them yet.

They have taken one hell of a beating and have stood up to the rigours of serious off road travel.

Jason.

5th Oct 2012 5:41pm

me@td5.org

Member Since: 16 Jan 2011
Location: Warwick
Posts: 856

Any updates RLD?

15th Oct 2012 6:55am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17353

jasong4110 wrote:
Well, I fitted these spacers over two years ago, they have done over ten thousand miles of rough overland lanes and motorways. I inspect them every year and before major trips and haven't noticed any issues with them yet.

They have taken one hell of a beating and have stood up to the rigours of serious off road travel.

Jason.

Good to hear! I suspect that either design is more than adequate for its intended use, regardless of which is stronger in absolute terms. You can't really get a better testimonial than that!

15th Oct 2012 8:27am

me@td5.org

Member Since: 16 Jan 2011
Location: Warwick
Posts: 856

On the issue of wheels I can not report that Evo Corse wheels don't clear the hubs by a fraction of a millimetre. So it's decision time do I send the hubs to the machine shop or fit some spacers. I think the former will be the most cost effective as they will be coming off the chassis anyway when I refurb my trailer. The hole in the wheels is 114.1mm where the hub diameter seems to be 114.6 (my digital callipers died before I got the reading and my other set were at home.)

Taking 0.3mm off the radius should be fine, i'll replace the hub cover bolts with cap head screws to make sure they don't overlap

16th Oct 2012 9:17pm

RLD

Member Since: 29 Jun 2007
Location: Lancs
Posts: 858

me@td5.org wrote:
Any updates RLD?

just the body is off and just waiting for the chase to come back then i will re mount it and get some more done got a few other jobs on at the moment RLD fabricator of Hidden Winch Mount for D3/4 roof racks jerry can holders CB aerial mounts and much more and agent for Helsport Tents and gear

17th Oct 2012 3:23pm

fekete

Member Since: 24 Dec 2008
Location: Here on the other end of the computer
Posts: 3626

2007 Defender 90 Puma 2.4 HT Bonatti Grey

Any updates Ray,

NEVER TAKE LIFE SERIOUSLY. NOBODY GETS OUT ALIVE ANYWAY

14th Dec 2012 2:51pm

RLD

Member Since: 29 Jun 2007
Location: Lancs
Posts: 858

No not as yet got the chase back bolted down ground round 2 windows to put the rubber on that's about it but will have to get on with it soon

RLD fabricator of Hidden Winch Mount for D3/4 roof racks jerry can holders CB aerial mounts and much more and agent for Helsport Tents and gear

14th Dec 2012 3:24pm

fekete

Member Since: 24 Dec 2008
Location: Here on the other end of the computer
Posts: 3626

Looking forward to the finish

NEVER TAKE LIFE SERIOUSLY. NOBODY GETS OUT ALIVE ANYWAY

14th Dec 2012 4:46pm

me@td5.org

Member Since: 16 Jan 2011
Location: Warwick
Posts: 856

I've missed this thread!

14th Dec 2012 4:58pm

dgardel

Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586

twopoint6khz wrote:
me@td5.org wrote:
Any idea why the stubs are not half way between the existing ones. I can think of no engineering reason to do it that way?

Uploaded with ImageShack.us

Late reply... Is it not because halfway between the studs would be the place that would see the most deflection? By putting them next to the existing studs you minimise deflection and therefore potential wheel wobble.

Yes, it is!!! Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License

15th Dec 2012 7:03am

Page 5 of 10

All times are GMT

Jump to

< Previous Topic | Next Topic >

Posting Rules

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum