Can someone help with some VP D1-30 engine fuel
-There is what looks like an Allen screw hole on the side of the injector holder (7). There is no screw in it and it appears to go nowhere. All three injectors are the same. What is it?
-What is the purpose of the washer (8)? I know what it does, it seals
between the fuel
return manifold and the injector holder but what is the purpose of fuel there? Cooling
-Can I reuse washer (7) if intact?
-Is the injector nozzle (2) supposed to be flat across the tip where the needle protrudes? All three of mine have what appears to be a 2-3mm diameter crater around the needle.
I shall do a “pop” test to determine leaking and function.
I did a compression
test through the glo plug
hole. The manual say 2450psi @ 250rpm. I have all three cylinders @ nearly 3000psi after 4 revolutions and nearly 5000psi after 10. No significant variation between the three. Engine
warm @ 150*f, battery
-Any concerns with these readings?