Technical Articles
Hubley Derby - Hubley History, Race Rules, Builders Tips
Which Models get Mahogany Wood Grain - Willie Priaulx, Feb 2026
Cleaning White Wall Tires - by Willie Priaulx, Aug 2025
Selecting the Correct Spark Plug - by Willie Priaulx, July 2025
Model A Production Engine Number Lookup - Added May 2024
Zenith Jet Size / Flow Rate - by Willie Priaulx, Feb 2024
Zenith Passageway Cleaning - by Tom Endy, Restorer Magazine Sep-Oct 2011
Rear End Gear Ratios Q&A - by Willie Priaulx, Dec 2023
K&N Air Filter and Airway - by Willie Priaulx, Sep 2023
Distributor Lubrication - by Willie Priaulx, Jul 2023
Two-Piece Crankshaft Pulleys - by Willie Priaulx, Apr 2023
Understanding Spark Advance - by Willie Priaulx, Jan 2023
Control Rod Installation - Contributed by Bill Magers, Nov 2022
LED Flashers - by Willie Priaulx, Sep 2022
Model A Lubrication Chart - Added Mar 2022
Diagnosing a Weak Spark or No Spark condition - by Willie Priaulx, Sep 2021
