Grey motor dwell angle

[Newby13]

I am just setting up a grey motor I have rebuilt and was wondering if anyone knows what dwell angle should be on it using the original Bosch Dissy or do I just set the gap and leave it.
Also I am chasing a vacuum advance diaphragm as mine just don't work thanks all.
John Newbound

[ardiesse]

36-41 degrees.  But just set the point gap anywhere between 0.012"-0.016".

There's a bloke in Queensland who sells rebuilt vacuum advance units.  He should be Googlable.

Rob

[Newby13]

Thanks Rob I'll try to find him

[Newby13]

I found that Rare Spares have them for $21 The guy in WA wants over $100 for a rebuild and I have to send him a changeover unit

[ardiesse]

. . . except that the Rare Spares units look like they're for red/blue/black motor Bosch distributors.  They won't fit a grey distributor.

Rob

[Newby13]

Correct I found that out when I went downto get one, Has anyone tried the AccuSpark eletronic ignition on the bosch dissy I was thinking about putting one of them in or gettine a complete electronic dissy for it, (i know it aint original!!) but does it work?

[ardiesse]

Don't know about Accuspark, but I can recommend the Pertronix ignition module, with the following warnings -

Your distributor needs to be in excellent condition (centrifugal advance working, with no wear in the parts; no end float in the shaft; vacuum advance working, and ground braid in good condition) before you install the module.

The magnet sleeve is difficult to install over the distributor cam.

You need to grind a small amount of material off the vacuum advance pull rod anchor bracket to clear the magnet sleeve.

Rob