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#32
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Starter solenoid current?
On 11/3/2011 1:31 AM, Bernd Felsche wrote:
> > wrote: >> "Bernd Felsche" wrote > >>> I'm trying to figure out the current draw by the starter solenoid, >>> (not the starter motor) at terminal 50. >>> >>> It's powered through the ignition switch in the Golf GTI but the 4mm >>> wiring has me baffled. That's too much current to go through a >>> little ignition switch if the wire is sized for current capacity. >>> >>> So I assume it's sized to avoid voltage drop, which leaves me none >>> the wiser regarding the current actually drawn by the starter >>> solenoid. > >> Why not put an ammeter in series? > > Because it could fry the poor thing ... > Most multimeters maxo ut at 10 Amps. > I suspect that it could be 30A, if not more. > Bosch book says 30 to 70A, depending on the size of the starter. **This'll do the trick: http://www.jaycar.com.au/productView...for m=KEYWORD You should be able to borrow one from your local sparky. Most have them now, though DC rated ones are a little rarer. Auto electricians have them. Or should. -- Trevor Wilson www.rageaudio.com.au |
#33
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Starter solenoid current?
On 12/04/2012 5:04 PM, Trevor Wilson wrote:
> On 11/3/2011 1:31 AM, Bernd Felsche wrote: >> > wrote: >>> "Bernd Felsche" wrote >> >>>> I'm trying to figure out the current draw by the starter solenoid, >>>> (not the starter motor) at terminal 50. >>>> >>>> It's powered through the ignition switch in the Golf GTI but the 4mm >>>> wiring has me baffled. That's too much current to go through a >>>> little ignition switch if the wire is sized for current capacity. >>>> >>>> So I assume it's sized to avoid voltage drop, which leaves me none >>>> the wiser regarding the current actually drawn by the starter >>>> solenoid. >> >>> Why not put an ammeter in series? >> >> Because it could fry the poor thing ... >> Most multimeters maxo ut at 10 Amps. >> I suspect that it could be 30A, if not more. >> Bosch book says 30 to 70A, depending on the size of the starter. > > **This'll do the trick: > > http://www.jaycar.com.au/productView...for m=KEYWORD > > > You should be able to borrow one from your local sparky. Most have them > now, though DC rated ones are a little rarer. Auto electricians have > them. Or should. > Have one similar out in the garage. Much easier to use. -- Krypsis |
#34
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Starter solenoid current?
On 12/04/2012 9:01 PM, Paul Saccani wrote:
> On Thu, 12 Apr 2012 17:04:47 +1000, Trevor Wilson > > wrote: > >> On 11/3/2011 1:31 AM, Bernd Felsche wrote: >>> > wrote: >>>> "Bernd Felsche" wrote >>> >>>>> I'm trying to figure out the current draw by the starter solenoid, >>>>> (not the starter motor) at terminal 50. >>>>> >>>>> It's powered through the ignition switch in the Golf GTI but the 4mm >>>>> wiring has me baffled. That's too much current to go through a >>>>> little ignition switch if the wire is sized for current capacity. >>>>> >>>>> So I assume it's sized to avoid voltage drop, which leaves me none >>>>> the wiser regarding the current actually drawn by the starter >>>>> solenoid. >>> >>>> Why not put an ammeter in series? >>> >>> Because it could fry the poor thing ... >>> Most multimeters maxo ut at 10 Amps. >>> I suspect that it could be 30A, if not more. >>> Bosch book says 30 to 70A, depending on the size of the starter. >> >> **This'll do the trick: >> >> http://www.jaycar.com.au/productView...for m=KEYWORD >> >> You should be able to borrow one from your local sparky. Most have them >> now, though DC rated ones are a little rarer. Auto electricians have >> them. Or should. > > I already offered him a loaner. He prefers not to borrow equipment. > > You can't fault that. A group of us used to share equipment. Had all manner of things. If we needed something, we'd pool our resources and just buy it. Trouble is, most members of the old group have shuffled off their mortal coils now. I was one of the youngsters in the group. Actually, come to think of it, I am the youngest that's left out of the few who "were" young'uns. Ah well, I'm a tad too knackered to be crawling around and under cars now. Best leave it to the next generation I guess! -- Krypsis |
#35
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Starter solenoid current?
It is a little more complex.
The initial current required to move the solenoid is far higher than that required to hold it in place. Thus, many cars have duel coils, one to move, and the other to hold. Thus, you may get say a 15 amp 1/2 second pulse, followed by a steady 2 amps. Mal http://protectorfire.com.au |
#36
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Starter solenoid current?
With a starter on the bench from a VT ecotec v6 the solenoid pulls over 20a from my 30a powersupply.
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#37
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Starter solenoid current?
I want to modify the circuit to add another relay to power the solenoid thus lessen the load, to energize relay it takes around 150mA.
Supply taken directly from battery. |
#38
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Starter solenoid current?
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