I have a Petter PH1 on a dumper, rated at 6.8bhp @ 2000rpm. I have just had it rebored +20, ground the valves in and fitted a new injector nozzle (set at 800bar). It has run about 5 hours since and is still a bit smoky, I pulled the injector out this morn as the washer was leaking slightly and found quite a lot of carbon built up on the nozzle (which I didn't touch). With good compression and a new airfilter I can't see any other reason for what must be an incomplete burn but injector. So, is 800bar the correct pressure? should I try raising or lowering the pressure? Or is it that they are always smoky and as Jack Nicholson said "maybe this is as good as it gets" Kev
- posted
15 years ago