[No pulse to injector]

Thanks Lee,

 

have tried pulling the tip out and still no fuel came through, my first thoughts were that i had debris but now i am not so sure as i have just had the car running again this morning and it is ok. I can gaurantee that it will not be later today. Another observation which has baffled me is that when i take a good injector off the pipe and crank the engine no fuel comes through the pipe, yet as soon as i put it back on i get the conical spray. Is this correct ie has the system to be pressurised to let fuel through to the injector?

 

Thanks again

[No pulse to injector]

Having stored my 1975 PI for 6 months i am now having problems with Injection. I initially had a weak pulse on No 5 which i sent off to Rimmers and got an exchange unit. After running ok for 1 weekend i then had no pulse on No 4 with no spray when tested. I swapped with No 3 proving it was the injector. Another exchange unit and it ran fine for about 10 miles until parked up and then started again on 5 cylindars. On looking at No 4 , no spray from the injector. Rimmers have suggested i have an Air lock, can someone tell me how to bleed the system, i have also had the Injector pipes off from the union but not the unions themselves.