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Drum Brakes 7" vs 8"
sweston - 5/1/04 at 01:28 AM

I have triumph herald 7" drums rear currently. I have some Vitesse 8" drums that fit (if I can find the special churchill tool to pull them off).

The rear end is all triumph, diff etc.

Going from 7" to 8" drums will that give me more stopping power ??


PioneerX - 5/1/04 at 09:20 AM

sweston,

I work for SPX Corporation (new name for V L Churchill due to being bought by SPX Corportation a few years ago)

Which tool do you need???? If you can supply me the part number I can see what I can do. The tool is more than likly to be obsolete and not stocked any more, but we will stillhave the engineering drawings for it.

Simon

[Edited on 5/1/04 by PioneerX]


sweston - 5/1/04 at 08:55 PM

Thanks for the response. Will check the workshop manual tonight, try and get image details.

PS: I am in New Zealand. My project is a NZ based kit built on a triumph herald chassis, with XFlow 1600 in. Now if I could have got my hands on a Vitesse straight 6 that would have been magic.


sweston - 6/1/04 at 10:32 AM

Here is the churchill tool I am after, S109C. Rescued attachment churchill_tool_01.JPG
Rescued attachment churchill_tool_01.JPG


PioneerX - 8/1/04 at 08:52 AM

sweston,

I have not forgotten about you, it's taking a few days to locate a drawing that old (system was not electronic at the time that tool was designed)

I will get back to you in a couple of day (hopefully with good news)

Simon


Hornet - 8/1/04 at 10:48 AM

Just been reading this thread and thought I'd add...
Most people who have drums on rear must reduce the braking effort to the rear to enable SVA passes. And as most use escort diff, they will either be 8"or 9".
So my point is... is this not a waste of effort as your brakes are already what you require?


Stu16v - 8/1/04 at 05:37 PM

I guess that a universal hub puller would do the same job as the tool shown...


sweston - 8/1/04 at 08:47 PM

Dear Hornet

My NZ based locost is built on a triumph herald chassis and came with Triumph Herald 7" drums all round as it came of a estate.

I sourced some Triumph Herald front's with disks on them and fitted them. When the Vitesse came triumph fitted 8" drums, I have managed to source some and would like to fit to replace the current 7" drums.

We don't have the SVA but a special body called www.lvvta.org.nz run in colloboration between the Govt Land Transport authority and various car org's that have an interest in low volume production (ie kits).


PioneerX - 15/1/04 at 01:21 PM

sweston,

Sorry I cant be of any help. The tool is no longer manufactured and our Engineering department is have a hadr time locating the orginal drawing. As far we can assurtain it s tube with a weled flange to match the wheel bolt holes on one end and welded cap on the other. The cap has an M18 threaded hole which when a threaded bar is put in pushes the centre hub. The welded flange on the side is to make sure the whole assembly does not rotate as you wind the threaded bar.

Simon


sweston - 15/1/04 at 09:00 PM

Thanks for your effort, much appreciated. Seem's a universal hub puller should do the trick just have to see if I can borrow one from some where !

We have a big swap meet this w/e will go hunting !!