hi everybody ,
thanks to all for the input. I've bought the new fast glow plugs approx. a week ago, bosch 0250201010 , had some time to test them. Now the engine starts much better , however some cranking is still needed. I wired these GP to the same point after resistor on the firewall as the old GPs , just without ground on the GP #1. Seller indicated that these plugs need 9V DC. I've checked the voltage after the resistor and it is about 6V (as far as I understand for the old serial plugs). I left everything as it is for now; on top of that I do not have the time relay , I just utilized the existing pull knob.
so my guestions:
1. what is the correct voltage for these fast GPs ? I have 10V before the resistor so I can wire the GP without it ...
2. do I really need a time relay ? lets say if I keep the knob pulled 30-40 secs. or more can I damage these new pencil type GPs ?
thanks,
Ruslan