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Looking for advice again. Filter changes done but none of the new seals fit so have leaks. Used WIX cross refs. Do the Fram C1125PL fuel filters come with seals that fit the 003? Ditto Fram CH6PL oil filter? Second, searching for the spin on filter adapter kit. For the -003 yielded nothing...

Follow up to those helping: the transducer is good and is getting voltage in, and has voltage out, about 3.5 vdc. The freq meter has voltage so meter must be bad. Kinda back where I started but know the old transducer was bad too. Making progress and learning a lot. We did full service on...

Thank you! I see this is from 'figure 1' in some manual. Can you share the manual number? These pages seem more like from a training manual. Good schematic!

Thanks for all the feedback! Guyfang, that schematic is different from the one I have in manual -12. Your schematic is SO much easier to interpret! Thanks. Next trip to the county shop in a few days. At $25 bucks in fuel to make that trip I don't go as often. This fuel situation stinks.

The new transducer was installed today. For anyone doing this job, unbolt the control box, unscrew two big connectors and a ground from the rear, and it's easy to get to the rear panel to drill new holes from the back. The screws from the original transducer (used with nuts) will screw into...

Great info! Got one on order. Tnx.

The MEP003A is up and running! After burnishing Switch 7 there was start signal through K3 and the engine started fine. Output voltage is there, and adjustable. The Freq meter does not work though, and no DC output from the Freq Converter module. Not a show stopper. Many VOMs have frequency...

Looks like I need to check out S7, the Start Control Switch Assembly, that should be providing ground to K3 X2. Edit: Guyfang, roger on that main circuit checked out good. Coil is not being enabled though, no ground, which S7 should provide.

K3 is correct of course. I relied on memory. Post covid memory. Still chasing issues: K3 term X2 coil is not getting grounded to engage relay. Does have 24v to X1. Upper main terminal on K3 was loose too. Got that fixed. Tried following circuit on diagram on top of control panel but too...

Not fixed yet. The batteries were "borrowed" from another vehicle, and "borrowed back" to original source before I got there to work. So next time I am taking batteries! I did Ohm out wiring and suspect K2. More to come...

Followed the excellent advice and the switch is working! Thanks.

Perfect! Thank you. I will search for that thread some more. I had searched, really! Update: found the threads! I had always included 003 in the search. Thread was on 002. Dumb computers shoulda known they are the same... Great threads, thanks.

Working on a Sheriff's Dept gen set, MEP-003A. Has been sitting for years. Engine running now and sounds good but there are issues. The voltage and phase selection switch will not turn. Feel the spring load but the contacts do not jump to new positions. It seems the issue is mechanical and...