front brake conversion

[Paul]

im converting my front brakes to vented disks from a mk2 golf and calipers from a mk4 fiesta. the golf disks were the closest match to the originals as i couls find but the calipert carriers arent availiable new and second hand carriers being 20years old. so i decided to use fiesta calipers as the use the same size disks but the caliper carriers are availiable new and there is more chance of finding them used and in good condition.<br>
<br>
what should the clearence be between the hub and disk centre hole?<br>
<br>
how much was the sierra conversion the last time a lot was made?<br>
<br>
Thanks, Paul

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[tinweevil]

Hi Paul,<br>
<br>
Which variant of golf disks are you using? I've often pondered a conversion using golf II parts as they are so cheap. Hadn't got as far as discovering one bit was unobtainable tho. <br>
<br>
The measurement you need, not sure exactly where you mean. If its the one I think then there's 3 values:<br>
<br>
<!--EZCODE IMAGE START--><img src="http://www.tinweevil.plus.com/images/Re ... educed.jpg" style="border:0;"/><!--EZCODE IMAGE END--><br>
<br>
The green line is probably the only one that needs to be accurate as both surfaces are machined. The shallow chamfer (red) and the steeper chamfer in the 4 rebates (yellow) are cast surfaces so probably just for clearance on something.<br>
<br>
Green: 17.5mm<br>
Red: 14.5mm<br>
Yellow: 9.5mm<br>
<br>
These are not easy to measure accurately. Before you go to machining get in touch and I'll get it on a surface plate and do the job properly.<br>
<br>
Where abouts are you?<br>
<br>
Tinweevil

<p>1978 <!--EZCODE LINK START--><a href="http://www.triumphowners.com/704">Dolomite Sprint</a><!--EZCODE LINK END--><br>
1972 <!--EZCODE LINK START--><a href="http://www.triumphowners.com/754">Spitfire IV</a><!--EZCODE LINK END--><br>
1968 <!--EZCODE LINK START--><a href="http://www.triumphowners.com/705">GT6 II</a><!--EZCODE LINK END--><br>
1973 <!--EZCODE LINK START--><a href="http://www.triumphowners.com/755">Dolomite Sprint</a><!--EZCODE LINK END--><br>
39 anorak points on the Nicholas scale<br>
</p><i></i>

[Paul]

thanks for the reply, im using mk2 golf 8v gti disks as the dimensions are very similar to the dolomite disks.<br>
<br>
this is the measurment i waws after, how much clearence should there be?<br>
<br>
<!--EZCODE IMAGE START--><img src="http://www.muchos.co.uk/members/CousinC ... <!--EZCODE IMAGE END--><br>
<br>
have you done a brake conversion, is so what parts did you use? i searched the internet for details of conversions already done but i couldnt find any info and the details of the sierra conversion seem to be a secret...... <br>
<br>
Thanks, Paul

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[SprintV8]

<!--EZCODE AUTOLINK START--><a href="http://www.triumphowners.com/registry.c ... <!--EZCODE AUTOLINK END--><br>
<br>
Steve Martins (QuickSprint) old car has some photo's<br>
click on link and go to photo's.<br>
<br>
Those brake caliper's are tiny compared to Daz's and my new set up?.

<p>1980 Dolomite SprintV8 (Soon to be shoehorned with a 360bhp TVR AJP V8 !)<br>
1997 Vauxhall Calibra 2.0 16v SE8 They laugh at me because I am different. I laugh at them because they are all the same!)<br>
</p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... printV8</A> at: 28/11/05 10:16 pm<br></i>

[Paul]

in comparison they are tiny they are a little small. the calipers im using are off a 2003 ford Ka, which use the same size pads and have the same size piston as the sierra calipers.<br>
<br>
thanks for the link, i needed to know how the disks were fastened to the hubs for the sierra conversion.<br>
<br>
Paul

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[MaddMart]

I have some pics & notes on my website. The whole operation to do the conversion was covered in the DM.<br>
<br>
I have all the details for the conversion & have emailed them to several interested parties.

<p>Martin<br>
<br>
<!--EZCODE LINK START--><a href="http://www.dolomitesprint.com/" target="top">www.dolomitesprint.com</a><!--EZCODE LINK END--></p><i></i>

[SprintV8]

The Ka caliper piston's are a different size to the Sierra.<br>
Not sure if that's a good or bad thing?.<br>
<br>
More Detail's here.<br>
<br>
<!--EZCODE AUTOLINK START--><a href="http://www.brake-eng.com/">www.brake-en ... <!--EZCODE AUTOLINK END-->

<p>1980 Dolomite SprintV8 (Soon to be shoehorned with a 360bhp TVR AJP V8 !)<br>
1997 Vauxhall Calibra 2.0 16v SE8 They laugh at me because I am different. I laugh at them because they are all the same!)<br>
</p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... printV8</A> at: 29/11/05 8:03 am<br></i>

[Paul]

which model were the calipers from for the sierra conversion, i thought it was the 2L non abs with rear drums? which have 54mm caliper pistons, the same as Ka's with 240mm vented front disks.<br>
<br>
Paul

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[DailySprinter]

Mine came from 2 litre Sierra, although they are the same as the 1993 1994 escorts with vented 240 mm discs.

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