Date: Mon, 5 Feb 2001 21:09:17 +1200
Reply-To: Andrew Grebneff <andrew.grebneff@STONEBOW.OTAGO.AC.NZ>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Andrew Grebneff <andrew.grebneff@STONEBOW.OTAGO.AC.NZ>
Subject: Hansen brake kits #1
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>From: "Raimund Feussner" <rfeussner@gmx.de>
>To: "Andrew Grebneff" <andrew.grebneff@stonebow.otago.ac.nz>
>Subject: Re: Hansen brake kits
>Date: Sun, 4 Feb 2001 10:34:02 +0100
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>
>> Ah, but do they make kits for T3?
>
>Hu? These photos are from a Vanagon front axle! You didnīt had a look at
>your vanagon suspension recently, had you?
>
>> What's their e-mail or website address?
>
>Iīll find out.
>
>> Are these calipers floating or fixed, ie are the pistons both on the
>> outside (with sliding caliper ie floating), or is there another pair of
>> pistons on the inside of the disc (caliper fixed, not floating).
>
>Fixed calipers, 4 pistons, two inner and two outer
>
>> I cannot see a (good) reason for this. The rotor center will still be
>> plenty strong, even with a second set of holes drilled.
>
>If you donīt have an official paper confirming the strength and stability,
>nothing gets legalised here...
>Testing, testing, testing, at least when going the VERY official way ;-)
>under which circumstances do the adapters break etc.
>
>> Anyway, a KIT
>> rotor-center could easily be drilled to Mercedes pattern instead of
>> Porsche.
>
>thatīs what they did on the photos. A new center with 5x112mm
>
>> I have heard that the TUV has some ridiculous regulations eg no parts not
>> approved by them are legal for street use. Meaning that the part
>> manufacturer must provide the TUV with a vehicle of that model with the
>> part fitted (eg a motorcycle with some aftermarket handlebar) to look at.
>
>Yep.
>
>> Another problem is that I don't know which of the German front axles my
>van
>> has...they were changed about 1984, and my Caravelle's an 84! But I
>believe
>> both versions have a rotor integral with the front hub.
>
>Yes, both version have the bearings/hubs combined with the rotor. Even the
>stubaxles are the same because old and newer vanagons use the same bearings.
>
>>
>> The South African (RSA) Caravelle has a different hub with a removable
>> rotor. I believe the axle (spindle, stubaxle) is the same as the later
>> German one.
>
>As far as I know, they are the same. But tno need to change because of the
>vanagonīs age (same bearings as mentioned above)
>
>You asked if Oettinger used the SA-hubs on their 4-disc system: NO!
>Oettinger developed their system in the mid-eighties, no SA hub was designed
>until 1990.
>
>Hansen provides new hubs where the porsche rotors with 5x112mm center fit
>onto.
>
>We tried to fit ī92 Audi 100 brakes onto my vangon and didnīt have the
>possibilities to build a new hub, so we just cut off the braking part off
>the original Vanagon rotor, leaving only the rotor center. Then we put it
>onto the stubaxle and placed the Audi rotor over it. Would be a cheap idea
>with old brake rotors.
>If weīd use porsche rotors we would just build a rotor center with a
>matching offset that
>accumulates the extra thickness of the "rotor hub". Then youīd only have to
>adapt the calipers...
>We tried the same way on the rear of the van, machined the rear hub, put the
>Audi rotor over it but didīnt have enough clearance to built a U-like
>caliper adaptor to mount onto the 4 fat screws of the bearing housing.
>
>I attached a few Oettinger rear bearing housings where the caliper mountings
>are provided.
>
>>So... I either need to:
>> 1) machine rotors off my hubs and adapt Porsche rotors to modified hubs
>> (will offest discs outward)
>
>Like our idea above. You could built an individual porsche rotor center to
>get the offset right.
>
>> 2) fit later-model axles and RSA hubs and fit Porsche rotors
>
>VWīs version of the machined rotor center... Also the same dimensions like
>on all other Vanagons (bearings/stubaxle etc.).
>
>
>
>So every adaptation, Porsche, oettinger, our own ones, are based on the same
>idea.
>
>
>> 3) find some other hub which will fit my axles if the right bearings can
>be
>> found to adapt them
>
>Why find one. take Oettinger, RSA or an old used Vanagon rotor...
>But machining an old rotor is a PITA! Hardest steel I ever saw!
>
>
>Raimund
>
>
>
>
>
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