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Join Date: Nov 2008
Location: NY
Posts: 3,994
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Quote:
Originally Posted by fanaudical View Post
Personally, I think it's darn difficult to fully check the curve on a distributor without one of those fancy machines.
I have taken mine apart, cleaned it, fixed a bunch of small problems, and reassembled. My verification of curve function was to essentially verify advance at idle, advance at that "knee" at ~2000 rpm, and verify it fully advances at 6000 rpm. I just assumed linear advance progression between 2-6k rpm.
No doubt it would be a lot easier with a distributor machine. Trying to check advance in the garage with a timing light on a running engine is a bit difficult. What you checked would pretty much be enough. Jay's check was missing the knee, as if one of the advance weights was not working.

Zuba, I think the 123 distributor seems like a really nice upgrade from what I've read. Is there any maintenance or occasional lube needed? I see a little info on the site regarding advance but no curve. I would think you are using #7 although 6 and 9 are identical. Do you have any more info about the curve? They show it at 30* max which is a little conservative.


The 123 is a bit expensive, but reasonable compared to having a professionally rebuilt stock one that still needs points along with occasional adjustment. It's also good you can use without the CDI. They did seem mention that a different coil should be used in that case.
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Old 02-28-2025, 02:13 PM
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