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Topics - andreaskc

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I picked up a Lovoson 12/2 that owner thought had a clogged injector or pump. I've given the engine a decent go thru. The previous owner had been running veggie oil thru it and it stopped working after sitting one winter. Compression is good, oil pump good, changed oil, crankcase is clean.

Both fuel pump racks were locked up tight. One of the fuel pumps was seriously gunked up with a black tar mixture. The fuel line from the tank to filter was solidly blocked with the same black gooey tar. Past filter, and in pumps it looked more like regular diesel.... other than the pumps being covered in tar.

I pulled the pumps apart, cleaned them real good and now have good action in the rack. Fuel squirts out of the high pressure lines.

I have one injector now squirting out (not in engine) but no creak. The other injector had a nozzle that is nearly black and it doesn't squirt. I hooked the working injector up to the high pressure line the bad injector was on and don't get it to squirt anymore. Bad injector also didn't work on what was the working high-pressure line. Once I switched them back, the good injector works on the good high pressure line.

Both high pressure lines squirt fuel out, but wondering if I have both a bad pump and a bad injector? The pump on the bad side does seem to behave similar but it did have a spring and brass/copper washer in it that looked like it had been tweaked pretty good at some point. I had hammered the copper washer back flat before putting it together.

Here is a video of the bad line squirting fuel, not attached to injector.

http://youtu.be/O-qetCVAVx4

Maybe need a new injector and pump?

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