help with noobie misstake

saxonorm · Posted: Sun Oct 24, 2010 6:56 pm Post subject: help with noobie misstake

hi all

right im fintting my engine in to my disco p-reg 300tdi. none edc

its been abount 9 mths since i pulled the old engine from the truck the power loom that comes from the bulk head around the engine and on to the inner r/h wing also has alternator wiring in it. theres a plug for the big relay next to the fuse box. another wire that goes in to the fuse box(alt feed) then a single heavey black wire that has a ring terminal on the end??? this wire where dos it go i never marked were it was from and dont want to blow somthing. wire also has a small black wire that earths out on the body mount under the fuse box. does anyone also now what this is for?

scouse_mouse · Posted: Sun Oct 24, 2010 7:29 pm Post subject:

try positioning the wire around the engine bay and see what it can reach , are you sure it aint anothr earth , , will have a look on mine when it stops peeing down !! Very Happy

saxonorm · Posted: Mon Oct 25, 2010 6:38 am Post subject:

thanks just tryed unless ive missed something. the only places it can reach is the battey. but im wondering if i have put the cables in the corect place or rooting around the metal of the header tank and fuse box got a bad pic but may help.
the red scots locker is only temp. thats the small black wire i was talking about. im holding the other wire. has a ring term which would fit battery.

photo taken looking over the r/h main head light

blanche_90 · Posted: Mon Oct 25, 2010 7:33 am Post subject:

cant you work out where the other end of it is? if your not sure which the other end is/or is going to, try continuitity testing it on a few likely ends (dissconected from what ever).
this should give you an idea atleast, as to what it's for and where it should be going too.

xamtex · Posted: Mon Oct 25, 2010 8:11 am Post subject:

JUST A TIP...not really much help now...take pics BEFORE you disconnect everything?

scouse_mouse · Posted: Mon Oct 25, 2010 8:44 am Post subject:

Going by the sheath over it , the same one goes to the positive , clean the wire underneath and see if it is brown , but looking at mine its a positive wire .

scouse_mouse · Posted: Mon Oct 25, 2010 8:45 am Post subject:

Yeah , pull the sheath covering it back a bit , it should be brown .

saxonorm · Posted: Mon Oct 25, 2010 11:26 am Post subject:

yep brown is the wire under the mud. thanks for checking your cars

xamtex thanks yer i did all the others but like a plum forgot to this one like a noob!!

thanks all again just hoping to get it to fire up tonight