JD distributor drive gear

[Bro74]

Does anybody have a good used or make a distributor drive gear for a 1928 JD?
Mine has half the teeth worn off and I can't help believe it is really altering my ignition timing.

Bro74

[sirhrmechanic]

Your best bet is probably eBay for a used one. But try searching on either a Timer drive gear or a Breaker drive gear, not distributor drive. Technically, the JD doesn't have a distributor, it has a timer.

For new/repro parts, try Competition Distributing out in South Dakota. If anyone makes a good repro, it's probably them. Also the guy in Holland, Jan Willen Boon, I think, may have the part. Both sources are highly reliable and make great stuff.

Cheers,

Sirhr

[23JDCA 808]

another good search would be on the part number from the appropriate Spare Parts book (in reprint.)
Timer shaft gear 1547-18 (twins) 1545-26 (singles.)

[MassHarley]

Try Jon Numo at Sagebrush Cycles in TX.

817-490-1372

He has a lot of JD parts.

numo@sagebrushcycle.com

[harleytoprock]

If you want to get technical, Harley did use a JD distributor from 1918 to 1926. It had a single lead ignition coil and the distributor cap distributed the spark to the 2 cylinders.

[23JDCA 808]

The Circuit Breaker sat in a Timer Base and used a Distributor Cap; p.25 pf the 1922-1928 Spare Parts booklet. We all know what we're talking about. :-)