> Someone else suggested just hooking power up to one glow plug and since
they are
> in series
They are NOT in series. DON'T DO THIS!!!!!!!! They are all in parallel.
They are all connected and terminated to the glow plug relay. Check each
plug for continuity with its' connector removed to ground. Replace all dead
plugs. If you feel you know what you are doing, you can hook 12 volts to
the large terminal that feeds the glowplugs. See note in below paragraph.
NOW LISTEN TO THIS EVERYONE: THE GLOW PLUG CIRCUIT IS NOT 24 VOLTS!!!!!
They are fed through a large glowbar resistor mounted to the firewall behind
the vacuum pump. This resistor drops the 24 volts to 12 volts. NEVER
connect or expose the glowplugs themselves to 24 volts!!!!!!! I will soon
write an article on this subject of CUCV glowplugs. It is a simple circuit
but connecting 24 volts directly will meltdown the plugs!
> they would all be engergized, he said leave power on it for 30 secs and
try to
If you do this, 15 seconds may be too much--NOT 30 SECONDS! If connected
directly to 24 volts, you will ruin all glowplugs to meltdown in the
cylinders-certainly in this time interval. The glow plug controller card
turns the plugs on (through the relay) according to the temperature of the
engine. After engine starts, it cycles the plugs on and off to keep the
engine from excessive smoking during the first minute of operation. This is
what the "clicking" sound is when you first start up the engine. A glow
plug left on for too long will "wilt" and deform in the chamber and this is
a problem if it breaks off in the cylinder. You can, and if you must,
operate the glowplugs manually BUT do this: when turned on count "one
thousand and one, one thousand and two and etc. to 7-9 times. This will put
you in the ballpark of NOT ruining your plugs.
I hope this helps. Julian Burke
This archive was generated by hypermail 2b29 : Tue Oct 24 2000 - 20:55:34 PDT