From: James Shanks (n1vbn@yahoo.com)
Date: Mon Oct 10 2005 - 13:25:42 PDT
Correct,
It is for that very reason ...jumping another
vehicle via the slave connection that the
resistor bank takes power from the 24 volt
positive buss bar (the top one).
My M-1009 was taking power from the number one
battery 12 volt power point which is next to the
glow plug relay. I updated the glow plugs to
AC60G models and then noted the stock 13G glow
plugs pulled approximately 40 amps to warm them
up....the 60G's pull 90 AMPS!!!! Last winter I
killed my starting capability several times by
powering the glow plugs via battery number one
only for 12 volt power then trying to get enough
power from a very cold battery 0 F. and it just
didn't have enough reserve power to do the job.
Get out the battery charger (10 amp) to restore
power to battery number one and off I would go.
Restored power to the glow plug relay via the
resistor bank powered off the 24 volt positive
buss bar which spreads the load off BOTH
batteries leaving a lot more reserve power for
starting the engine.
How do you load test a CUCV to see if it will
start when the temps drop into the cellar??
I asked a local cold storage house if I could
park my M-1009 inside the storage for 8 hours to
verify my starter system is up to the job. I run
a manual glow plug button after I burned out
something on the glow plug controller card. The
wait light still works fine for timing and I
watch the voltmeter so I know the relay opened
when I release the button. After 8 hours in minus
20 degrees F. I thought the wait light was never
going to go out but it did and the truck wound
right over just fine and fired right up...not on
all cylinders as they normally grumble when
awakened in the cold without a block heater
keeping them warm but the chilly cylinders kicked
in after less than 10 seconds of running on the
high idle solenoid. But I only needed the starter
once.
People looked kinda strange at my truck as I
drive down to Dunkin Donuts for coffee with the
truck covered in frost in August. Looked kinda
cool though sitting there with fog rolling off
it.
I am happy and will maintain the Military 24
volt system. Make sure all electrical connections
are tight from the 24 volt buss bar to the glow
plug relay including the screws that connect both
resistors to prevent problems.
The old 13G glow plugs were prone to dying a
quick death if you powered them too often when
starting...I only had three working when I bought
the truck. Since I swapped back to 24 volts thru
the resistors I have noticed a lot quicker start
up as the glow plugs get higher voltage than a
single battery can provide. As measured with a
good digital meter 10.5 volts on one 12 volt
battery and 11.5 volts with the original military
resistor bank back in operation measured at the
glow plugs.
I will now jump off the soapbox.......FLAMEON!!!!!
__________________________________
Yahoo! Mail - PC Magazine Editors' Choice 2005
http://mail.yahoo.com
This archive was generated by hypermail 2.1.4 : Tue Jul 18 2006 - 21:30:39 PDT