Mep 831A load issues

[2Pbfeet]

Also both injectors looked the same when they came out. Pretty coated in carbon. It's that pretty normal?

Not in my experience. It seems as if your engine is being overfueled.

If it were me, I would go back to try fueling the high pressure pump directly again and see if that improves your load and smoke. If it doesn't, I am starting to wonder if pulling the engine to check the camshaft timing and the rings might be in order. Sorry.

All the best, 2PbFeet

 

[grywitt]

Not in my experience. It seems as if your engine is being overfueled.

If it were me, I would go back to try fueling the high pressure pump directly again and see if that improves your load and smoke. If it doesn't, I am starting to wonder if pulling the engine to check the camshaft timing and the rings might be in order. Sorry.

All the best, 2PbFeet

It will be a good learning experience. The more I dig into this thing and study the more I learn. It does seem like 1 degree of adjustment isn't leaving much room. This is the one shim under the fuel pump. Soon I'll get set up and start digging in. I'll post pics and I'm sure have some questions along the way.

 

[vrzff]

Question. What happens if you run it with no air filter?

Next question. Do you have an air compressor? Next time you load test and it starts to stumble, start blasting some air into the filter housing (with filter in). Don't go nuts, just a steady low-force blow. Does it catch back up and stop stumbling?