[Vwdiesel] Jumpers -- ( yumping jemmeni --- in swedish )
h_hagar at prcn.org
Thu Jan 15 20:01:05 EST 2004
Try to get a Swede to say Jumper ---- and you will know what I mean.
Dad has a set of 00 welding cable jumpers at the orchard. THOSE
carry some juice! Some jumpers say I.
They weld super carriers with that size cable . TOO big for us.
I am talking about # 4 copper (mine) but for minus 40 I would use
# 2 or # 1..
Here is a little about the problems. At forty below a thousand amps
is not crazy. So lets say 500 amps and figger the voltage drops on
the cable. # 4 My yumper is 32 feet long.(16 x 2) 0.25 ohms pr 1000 feet
(77F) . That looks like 4 four volt drop at 500 Amps. Too much drop
at 40 below. 2 volts at 250 --- not good. We need # 1 cable.
At least use Parrot beak clamps ( 500Amps) The VW wire from battery to
starter needs to be increased. Double up.
I am not daring to describe the weather here to Scott Kjær.
More information about the Vwdiesel