George Lendich wrote:

Paul,
Good news and bad news.

The good news is the bell housing will cost about $150.00.
although this is yet to be confirmed and won't be confirmed until I do one.

Other good news is that the auto flexplate will fit with some machining.
The bad news is that it will need some machining for the auto flexplate.
The other good news is that it won't need to be machined for the manual

ring

gear.

Because of the size of the auto flexplate 320mm Diameter
(please check that your is the same diameter) there is little room between

it

and the bolt holes.

180 mm centre to centre for the odd one out.
182 mm centre to centre for the remainder
160 radius for the Auto flexplate
20 -22mm remaining

2mm for clearance of the flexplate to the inside bell housing wall
6mm for wall thickness
12 mm for radius of the bolt head
I.E. 20 mm

The bellhousing wall has a sloped wall surface about 4mm in 80mm or 2mm in

40mm where the ring gear travels. This taper is need

for sand casting.

So you can see this is very tight indeed. What will need machining is the

inside bell-housing (from 9mm to 6mm or a little

less). I made the housing 9mm thick in this area as I am using a manual

ring

gear on aluminium flywheel (similar to

the Ross) and wanted to beef-up this area as it seemed thin at 6mm. With

the

manual ring gear there is plenty of room.

The area needing machining is a small area within the arc of the

bellhousing.

A straight cut on mill -in an arc would do the

job.
How is that sounding Paul,
George (down under)

********************************************************************************

Hi George;

320mm (12.6") dia is correct on the Auto Flexplate Ring Gear.....I just
finished measuring a couple I own.

No sweat on the ID of the Casting..As an alternate you can gain the wall
thicknesses  by casting in short Bosses for the engine mounting holes. This in
effect will gain you 18mm (9mm x 2) ;-)

Paul/George, is this clear?? Or am I not getting it.....Do you need a sketch??
                                                               Butch

My head is spinning with this French measuring system :) You mean up where
the curved part is too? It will be tough to machine this thing out if it is
too small. You will need a really big lathe or a big mill with a rotary table.

Paul Lamar
 
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