Re: [Amc-list] small disk brake

[Ken Ames <ameskg@xxxxxxxxx>]

IIRC the rotors are almost the same diameter. The difference was in the actual
swept area. The 'hat' part of the 4 cylinder rotor is larger diemeter so the
disc surface is smaller. I'll try a drawing...

4 cyl            6 cyl

||                ||
||                ||
||__              ||
||   \            ||____
||    \__         ||    |__
||                ||
||     __         ||     __
||    /           ||____|
||__/             ||
||                ||
||                ||
||                ||


NOT to scale but you get the idea...

Ken


Quoting Tom Jennings <tomj@xxxxxxx>:

> On Wed, 7 Mar 2007, Sandwich Maker wrote:
> 
> > iirc the 4-cyl rotors were solid; the calipers used extra thick pads
> > to make the difference up.
> 
> I'm not sure how much info I'm goin to try to put in the list. My
> main point is interchange; what will fit what, since I consider
> AMC to be a car kit parts manufacturer that encourages me to
> swap parts in crazy combinations.
> 
> I want to get all the brake dimensions, brands, replacement
> part numbers. IDs of all the valving. IDs of the backing plate
> flanges and caliper mounts and wheel cylinders.
> 
> Brake parts (springs, etc), hoses, that sort of thing, probably
> won't add. They can be usually scrounged. They could be added
> to the list later if desired.
> 
> Frank sent me a graphic of rear axle tube flange metrics, so
> I'll try to work those up for amc15 and amc20 and add a column
> for that. I know it can be derived from engine size etc but
> having a column will make it searchable.
> 
> Oh yeah, once it's in a spreadsheet I'll transform it into a
> full ross reference: given a wheel cylinder (Bendix, rear, 13/16)
> list all cars that used it, sort of thing. That comes "for free"
> once the data is there. I guess it's the point of this exercize.
> 
> (Someone shoudl do this sort of thing for engine, trans,
> bellhousing, clutch, driveshaft, axle, ...)
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> 


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