Benzine
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| posted on 12/8/08 at 04:24 PM |
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Couple of electrics questions
Firstly, has anyone got a premier wiring diagram for the sierra loom? It's been so long that I fit mine originally to the pinto that I've
lost it 
Secondly, my starter motor:
I've just taken it out the car and bench tested it. I connected the fat battery +ve to terminal 2 and then bridged/jumped 2&3... nothing.
(this was with battery -ve on the other end of the starter motor)
When I tried battery -ve on terminal 3 the starter engaged (had only managed to get it to spin when it was in the car, so it can do both things i.e.
not knackered). Then I tried battery -ve to the other end of the starter and it tried to engage once very briefly. So then I wire brushed the crap out
of it and tried again but I can't seem to get it to engage anywhere other than terminal 3. Do I need a better earth for the -ve battery cable?
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clairetoo
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| posted on 12/8/08 at 04:31 PM |
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The body of the starter is the earth , so it should be +ve to terminal 2 , and starter switch to terminal 3 - try bolting an earth (-ve) to one of the
starter mounting bolts .
Its cuz I is blond , innit
Claire xx
Will weld for food......
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Benzine
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| posted on 12/8/08 at 04:36 PM |
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I wired brushed one of the starter mounting threads and bolted the -ve lead on to it really tight but that doesn't do anything
"and starter switch to terminal 3" <== what's that mean exactly. Is that for when I'm bench testing or when it's in
the car.
Me is stoopid (wiring n00b ITT)
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clairetoo
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| posted on 12/8/08 at 04:39 PM |
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You should have a permanent live from the battery (via the alternator) to terminal 2 , earth via the motor body , and then when 12 volts is applied to
terminal 3 it should engage and turn .
Thats how mine is , and it looks about the same 
And dont forget to bung a nut on terminal 1 , its taking all the starting current !
[Edited on 12/8/08 by clairetoo]
Its cuz I is blond , innit
Claire xx
Will weld for food......
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adithorp
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| posted on 12/8/08 at 04:47 PM |
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Term' 2 is main battery feed (big fat wire from the battery).
Term' 3 is the activation feed from the starter switch (powers the solenoid which, engages the drive gear and connects term's 1+2
internally).
Term'1 in your picture is missing a nut. No wires should be connected to this other than the feed into the moter body as seen in the picture.
Without a nut you won't have a connection.
Earth is through the body.
To test put big earth to body. Big +ve to 2.
Trigger it by putting +ve to 3.
adrian
[Edited on 12/8/08 by adithorp]
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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Benzine
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| posted on 12/8/08 at 04:51 PM |
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quote:
Originally posted by adithorp
To test put big earth to body. Big +ve to 2.
Trigger it by putting +ve to 3.
adrian
That's exactly what I did and it engaged but didn't spin. Terminal 3 can't have a nut as it's a spade connector.
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clairetoo
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| posted on 12/8/08 at 04:53 PM |
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I think Adie meant terminal 1 needs to have a nut !
Its cuz I is blond , innit
Claire xx
Will weld for food......
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adithorp
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| posted on 12/8/08 at 04:55 PM |
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Sorry, now corrected.
adrian
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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Macbeast
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| posted on 12/8/08 at 04:56 PM |
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As above ^^^ It looks as if you are missing a nut on terminal 1.
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Benzine
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| posted on 12/8/08 at 05:02 PM |
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Ahh I see, there was a thin plate on that terminal linking it to the body of the starter and without a nut it wasn't getting a decent
connection. Put the nut back on and tightened it and it now engages and whirrs! ^__^
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clairetoo
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| posted on 12/8/08 at 05:05 PM |
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Result 
Its cuz I is blond , innit
Claire xx
Will weld for food......
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Benzine
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| posted on 12/8/08 at 05:55 PM |
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Got it back in the car now and I've got it all sorted, turns on the key now!
Much thanks for all the help!
Next job: working out why my hazard switch doesn't flash and is always illuminated when turned on... 
[Edited on 12/8/08 by Benzine]
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02GF74
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| posted on 13/8/08 at 08:38 AM |
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^^^^ wot they say.
terminal 1 supplies current, andd lots of it, to the start motor itself.
it needs to have good electrical contact achieve by having clean terminals and connected tightly i.e. by using a nut to clamp it all up.
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sucksqueezebangblow
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| posted on 13/8/08 at 09:15 AM |
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You wouldn't have had that problem with a BEC!
Better to Burnout than to Fade Away JET METAL ~ AndySparrow © 
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Benzine
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| posted on 13/8/08 at 09:30 AM |
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quote:
Originally posted by sucksqueezebangblow
You wouldn't have had that problem with a BEC!
but I would have had just as hard a job going shopping for a helmet to match my seat piping
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scotlad
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| posted on 13/8/08 at 10:57 AM |
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Re the wiring diagrams- phone premier and he'll send you all the info out. I lost mine and he was very very obliging!
Wonderous is our great blue ship that sails around the mighty sun, and joy to everyone that rides along!
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