4WD Mechanix Magazine Home Page 4WD Mechanix Video Network 4WD Mechanix 'Tech and Travel' Forums Illustrated Technical Articles and How-to Site Content Directory Contact Us

Enter your keywords here and click!

Click here for  Access to the Mobile Version  of this Website!                             Click here for direct access to the 4WD Mechanix Magazine Facebook Page!  Join Us at Facebook![NKS_MENU]

Click the4WD Mechanix Video Network button for access to the HD video channel playlists. For a complete list of articles and videos, click the "Site Content Directory" button!

Q&A Vlog: Setting Base Spark Timing for a Retrofit HEI Distributor

An aftermarket HEI distributor is the topic at this "4WD Vlog and 'Live Tech' Q&A" session. Moses Ludel discusses how-to set base spark timing with a tachometer and vacuum gauge. He describes the aims of spark timing and maximum engine performance. The viewer's 'Q&A' engine is a Jeep 4.0L inline six at the Philippines—converted to carburetion with a conventional, retrofit HEI ignition distributor.

 Jeep inline six HEI retrofit distributor from 4WD Hardware  MSD Pro-Billet is available for the Jeep inline six cylinder engines.

At left is a Jeep inline six replacement distributor in HEI (G.M. type coil and cap) design from 4WD Hardware. At right is the MSD Pro-Billet distributor that fits Jeep inline 232/258 sixes and has earned 50-State legal status with a California/CARB E.O. number. Each distributor will fit a 4.0L engine; however, the OEM AMC/Jeep 4.0L engine was only available with EFI/MPI.