I've been following mep-002a and 003a posts for a year and had hoped to have the time to work on my mep-002a before now, but wasn't able to. i cleaned lines and filters, etc and had pinholes in the fuel tank welded. I started the unit a month ago and could get it to run about 5 minutes each time. 60 cycles, good power output. Black then gray blue smoke, then it would die as if starving for fuel. I found #1 cylinder was getting very little fuel from IP.
Got a chance to go back to work on it over the weekend. removed and disassembled IP.Nothing really bad about the IP but cleaned it and reassembled it. I did notice the plastic Delivery Valve Spacer #12, page 7-32 in the -34 was shredded. I don't know how important this is. The one in my Mep-003a was also shredded. I have no idea of the specs on the spacer and the TM implies some don't have them.
I got confused reading the TM and some of the posts on other threads. There is a "Locating Screw" with brass washer (#13 and 14, page 7-32). I located the gear slot and locked it down before reinstalling the IP, thinking the "Timing Screw" (#31) had something to do with the timing.
Everything I've read here implies that I should have left the Locating screw" out and put a 1/8" rod in as a temp locating tool. If so, when is the "Timing Screw" applied and what does it do? suffice it to say the unit cranks like mad but only spits fuel mist out the exhausts, no firing. Both cylinders now getting fuel.
Obviously, I failed to time it because I assumed that since the Locating Screw seated and button did not change and I had not disturbed the position of the crankshaft, all would be good. Thought I found a shortcut to timing. I hope I haven't screwed up anything and plan to pull the IP again once I can get clarity on the "Locating" and "Timing" screws. Hopefully, I'm not hijacking this thread since it is about IPs.
Also forgot to mention that I found no "cross drive washer" as mentioned by Treeman back in February, nor is it in the IP schematics. Don't know where to look for it. Perhaps an older/newer model of IP?
Help, please.
Jerry