Re: 1hz injector pump rebuild
Some good information coming out in this thread. We need someone with a flowchart builder to put it all in as a reference sticky to save it all being written out again in a few weeks time when the next person has this problem.
It makes a lot of sense to start with the simplest, most obvious & cheapest troubleshooting techniques first and progress to the harder, more expensive ones if they don't work.
At this point hunting for that filter screen makes a lot of sense and it will be the next thing I investigate if my problem comes back again. My Zexel IP does not have one under the inlet banjo. I never found one when I was fiddling around a couple of years ago to try to increase the power, but I can't remember whether I removed the cut-off solenoid.
Anyway, it may be worth consulting Capataincademan as he is the other guy with a 1HZ that immediately comes to mind and it seems like he would know the location of that screen on your vehicle. Hopefully it is easy to get at without removing the IP from the vehicle or having to remove other stuff.
Regarding the acetone flush - yes, I used my Facet pump to do that with the engine off. I don't know how your engine would go if you pumped it at high concentration through the injectors while running, but I think I got a least a bit burned through mine when I re-started. I cannot say that the acetone won't kill your Facet pump either. Mine died before I finished a full 500 mL flush, but it seems like it was probably already on its last legs.
Some good information coming out in this thread. We need someone with a flowchart builder to put it all in as a reference sticky to save it all being written out again in a few weeks time when the next person has this problem.
It makes a lot of sense to start with the simplest, most obvious & cheapest troubleshooting techniques first and progress to the harder, more expensive ones if they don't work.
At this point hunting for that filter screen makes a lot of sense and it will be the next thing I investigate if my problem comes back again. My Zexel IP does not have one under the inlet banjo. I never found one when I was fiddling around a couple of years ago to try to increase the power, but I can't remember whether I removed the cut-off solenoid.
Anyway, it may be worth consulting Capataincademan as he is the other guy with a 1HZ that immediately comes to mind and it seems like he would know the location of that screen on your vehicle. Hopefully it is easy to get at without removing the IP from the vehicle or having to remove other stuff.
Regarding the acetone flush - yes, I used my Facet pump to do that with the engine off. I don't know how your engine would go if you pumped it at high concentration through the injectors while running, but I think I got a least a bit burned through mine when I re-started. I cannot say that the acetone won't kill your Facet pump either. Mine died before I finished a full 500 mL flush, but it seems like it was probably already on its last legs.
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