Don18025 wrote: Your photograph is of the wrong end of the engine and that hose is a boost pressure hose between the top of the fuel pump and water heat exchanger for the engine. Take a photo of the other end of the engine and you will find the turbo charger and the pressure reading port is between the turbo and the engine air inlet manifold. |
Don18025 wrote: Tagit, this I believe is a picture of the engine. http://www.ecvv.com/product/1000073050.html |
fritzhu wrote: The point being, that this little inline filter is tiny (half the size of a teacup), and looks to be absolutely ancient, pitted with rust and grime. (The filter on the engine appears brand new and has a water separator bowl.) I'm suspecting that it probably won't be helping, so I'll pick up a spare to take along on the next test run, swap it out and see what it does. |
fritzhu wrote: So I had a bit of a fiddle last night. Unfortunately what I thought was an inline fuel filter is actually the lift pump itself - didn't see the two wires running along underneath it! I've tracked the fuel line, and it goes from the tank to this pump, from this pump to a large filter and water separator on the engine, and from there to the pump assembly. I also installed the boost gauge and the new air filter. Oddly enough, the boost gauge shows an ever-so-slight vacuum on the old filter at idle, and the new filter shows just about zero. |
fritzhu wrote: Okay, observation! :-) With the new filter, peak RPM is up a little, to 3200 or so. The boost is between 14 and 15psi at 3100rpm or so, the engine manual specifies 14.5 so this seems spot-on. I don't know if this spec is at max RPM or not. The turbo does not have a waste gate at all on this motor, it seems... So, a question - what's next...? |
Tasman and Golden Bay snapper still running hot We are not far away from daylight... Read More >
Variety is the spice of life On one recent trip, the plan was to spend a... Read More >
Fish where the fish are! Catching fish or just going fishing? I tackle this issue... Read More >
Thoughtful tactics required for better fish Over the course of each year the fishing varies,... Read More >