05-04-2014, 08:52 PM
Steve, a quick check on the internet resulted in a couple of information sources but they seem to address the Detroit Diesels with DDEC and I suspect yours is mechanical. There may be something in these that help in any case. The first one seems to focus ONLY on DDEC so it is likely the least useable:
Detroit Diesel DDEC Wiring
The second reference seems to hold more promise since it is focused on the Jake itself:
Jacobs Troubleshooting Guide starting about page 35.
The third reference is an installation manual but does address the non-DDEC systems. Jacobs Installation 71A and 92A
Detroit Diesel DDEC Wiring
The second reference seems to hold more promise since it is focused on the Jake itself:
Jacobs Troubleshooting Guide starting about page 35.
The third reference is an installation manual but does address the non-DDEC systems. Jacobs Installation 71A and 92A