bpgoa
|
| posted on 9/10/07 at 10:13 PM |
|
|
Help - rear brakes dont fit!!!
Time to turn to the forum for some help!!!
I've just fitted the rear drum to disk conversion from Rally design.... and this is the result..
 
don't fit one
The arrow points to where the pipe attaches.... it's fouling the de-dion and it's not even straight (parallel to the disk)...
The holes on the hub carrier are asymmetric so you could only rotate the mounting through 180 degrees...
and the hole for the the brake hose is tight against the hub carrier so 90 degrees don't work (it comes with banjo fittings.
it would have to be a hole or come in through the bleed nipple and that means no bleeding of the brakes.. Help
I'm sure the pipe isn't going to attach  and even if I cut a hole in the tube it's going to be tight (would that be safe?)
Anyone else had this problem?
Anyone got a work around?
Or do I have to send them back to Rally Design and get the pimping 4 pots (overkill!!)
This is the view with the caliper off
 
dont fit 2
oh yeah... that's one of John Roberts de-dions
Any help appreciated...
A.
[Edited on 9/10/07 by bpgoa]
[Edited on 9/10/07 by bpgoa]
On and On the River flows... We the Undertow
|
|
|
|
|
oadamo
|
| posted on 9/10/07 at 10:24 PM |
|
|
didnt see that bit about the pipe pmsl.
adam
[Edited on 9/10/07 by oadamo]
|
|
|
blakep82
|
| posted on 9/10/07 at 10:30 PM |
|
|
would banjo fittings allow the hose to come out horizonally?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
RazMan
|
| posted on 9/10/07 at 10:34 PM |
|
|
I'm not familiar with the conversion but can you rotate the caliper bracket 90 degrees and mount the caliper in front of the hub rather than on
top?
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
|
|
|
russbost
|
| posted on 9/10/07 at 10:34 PM |
|
|
Looking at how beefy that axle housing is I can't imagine that cutting a small hole would significantly affect it's strength. What exactly
is the problem with the pipe attachment & would a cranked end on the fllexy pipe help? I can do braided flexies with anything up to a 90degree
crank if that helps at all - see my archive for pics of sample hoses (none of the 90 deg cranked unfortunately).
[Edited on 9/10/07 by russbost]
I no longer run Furore Products or Furore Cars Ltd, but would still highly recommend them for Acewell dashes, projector headlights, dominator
headlights, indicators, mirrors etc, best prices in the UK! Take a look at http://www.furoreproducts.co.uk/ or find more parts on Ebay, user names
furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours.
http://shop.ebay.co.uk/furoreproducts/m.html?_dmd=1&_ipg=50&_sop=12&_rdc=1
|
NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
|
Ketchup
|
| posted on 9/10/07 at 10:58 PM |
|
|
i recon that the plate needs moving 90 deg as raz said, so the caliper is leading instead of being on top, it looks odd fitted where it is
|
|
|
bpgoa
|
| posted on 9/10/07 at 11:06 PM |
|
|
The holes on the hub carrier are asymmetric so you could only rotate the mounting through 180 degrees...
and the hole for the the brake hose is tight against the hub carrier so no joy there. it would have to be a hole or come in through the bleed nipple
and that means no bleeding of the brakes.. Help
Has anyone fitted the 4 pot kit... would that help?
[Edited on 9/10/07 by bpgoa]
On and On the River flows... We the Undertow
|
|
|
BenB
|
| posted on 10/10/07 at 09:10 AM |
|
|
That doesn't look right!! 
How is the brake disc attached? I can't see how with the set-up the disc will sit in the groove in the caliper!!!! Unless I'm being dim
this morning that's more of a problem than the brake fluid pipe clashing with the uberhuge axle tube!!!
|
|
|
RazMan
|
| posted on 10/10/07 at 09:42 AM |
|
|
I have to say that it doesn't look quite right.
Here's a pic of my Sierra setup from a similar angle and your caliper seems too far back - maybe some spacers are missing?
[Edited on 10-10-07 by RazMan]
 
Rescued attachment Rear Hub.jpg
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
|
|
|
tks
|
| posted on 10/10/07 at 09:45 AM |
|
|
first thing i would do is get a rear disk over there and measure up the offset.
Is this the poss of the caliper??
then i would just drill an 20mm hole in that UBER big tube to allow for the banjobolt/hose
that tube is well over engineered if you ask me.
i reckon tha tif that tube is round overall turning around the bracket isn't the solution
maybe on rear druk the hub is turned 90degrees..??
Tks
[Edited on 10/10/07 by tks]
The above comments are always meant to be from the above persons perspective.
|
|
|
TimC
|
| posted on 10/10/07 at 09:55 AM |
|
|
As Raz says I think the offset 'looks' (can be deceiving) wrong!?
|
|
|
blue2cv
|
| posted on 10/10/07 at 07:23 PM |
|
|
Perhaps the bracket is the wrong way round, obvious way to check is offer up disc first
|
|
|
britishtrident
|
| posted on 11/10/07 at 12:10 PM |
|
|
I think you really have to sit down for a sanity check here.
The facts are
The De dion looks over engineered in terms of thickness and sizes.
The calipers won't fit the de dion as it is.
Some of the options are
(1) Major surgery to the de dion -- it won't be elegant but it is so heavily over speced it won't cause stiffness or strength
problems.
(2) Fit drum brakes.
(3) Try different calipers
(4) Fit a different De Dion
(5) Fit a live axle ---- might actually be the best option.
|
|
|
britishtrident
|
| posted on 11/10/07 at 12:28 PM |
|
|
Remove metal here
 
Rescued attachment dont fit 2.jpg
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
britishtrident
|
| posted on 11/10/07 at 12:30 PM |
|
|
Like this
[Edited on 11/10/07 by britishtrident]
 
Rescued attachment dont fit 1.jpg
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
Syd Bridge
|
| posted on 11/10/07 at 01:24 PM |
|
|
I don't think I'd take out quite that much!!!
A small notch to accommodate a 90degree bend wouln't hurt though.
Cheers,
SYd.
[Edited on 11/10/07 by Syd Bridge]
|
|
|
ettore bugatti
|
| posted on 11/10/07 at 06:57 PM |
|
|
Didn't you punt the lefthand part (caliper bracket) on the right side and vice versa?
If you change them it looks to me that the caliper moves too the outside.
|
|
|
britishtrident
|
| posted on 11/10/07 at 07:02 PM |
|
|
quote:
Originally posted by Syd Bridge
I don't think I'd take out quite that much!!!
A small notch to accommodate a 90degree bend wouln't hurt though.
Cheers,
SYd.
[Edited on 11/10/07 by Syd Bridge]
Most the material to be removed is carrying zero load, an FEM would run would show that.
Also the material thickness of assembly is so thick it gives a massive safety factor.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
britishtrident
|
| posted on 11/10/07 at 07:04 PM |
|
|
quote:
Originally posted by ettore bugatti
Didn't you punt the lefthand part (caliper bracket) on the right side and vice versa?
If you change them it looks to me that the caliper moves too the outside.
Well spotted that should help
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
bpgoa
|
| posted on 11/10/07 at 09:40 PM |
|
|
I've tried the disks and they are lined up ... no probs..
the de dion is designed to take both push in and bolt on carriers hence the big tube...
and although it looks quite chunky it's not that bad weight wise...
I've had an email off John - the maker of the de dion... and I'm going to post it here ...
There is a tendency to whinge in these forums but not necessarily give out praise where it's deserved... if all part suppliers and kit
manufacturers took a leaf out of Johns book it would be a lot better place....
please read.......
Hi Adrian,
Seen the post on locostbuilders about the brakes not fitting.
Obviously when designing things there is always a comprimise, and while we try a number of set ups we don't try everything. I'm not
familiar with the Rally design set up so I'm keen to see where modifications need to be made.
Firstly, the design of the de-dion is so that CV jointed axles can be used (two types of CV available, Ø108mm and Ø100mm), a 5" tube is the only
option, The new Haynes Roadster uses this size as well, so this conversion isn't going to fit these either. As we are now heavily involved with
Haynes Roadster parts I am keen to see what can be done.
Is it just the inlet point that doesn't clear?
If you want me to carry out the modifications I'll organise a courier to pick up all the parts and ship them here and return them to you when
done.
Let me know if you want to do this, it'll only take a week.
Kind regards
John.
What do I say to that except - Thanks John.
I contacted Rally Design, and they connected to the forum to look at my predicament... And they have offered a refund if i can't get it to
work... so Thanks to them also.
Now if everyone else who gets good service would care to post here... We'd know who the good guys were ... as well as the bad..
Oh Yeah... nearly forgot.... Thanks for all the replies and suggestions... I'll keep you posted.
[Edited on 11/10/07 by bpgoa]
On and On the River flows... We the Undertow
|
|
|
