[DeTomaso] starter electrical system problem

Will Kooiman will.kooiman at gmail.com
Sun Sep 22 13:46:00 EDT 2013


You are correct.  The "solenoid" is really a relay.

We used to call it a solenoid, though, back when we didn¹t know better.

--
Will





On 9/22/13 1:30 PM, "Pantdino" <pantdino at aol.com> wrote:

>
>Am I wrong or is there a confusion arising in this thread?
>I'm thinking a relay has two circuits going thru it but does not do
>anything mechanically.
>A solenoid, when activated by it's circuit, moves something
>mechanically--  like engaging the starter motor on the flywheel, engaging
>an overdrive, etc.
>The relay is on the firewall, while the solenoid is that big bump on the
>starter motor. 
>No?
>
>Jim
>
>
>-----Original Message-----
>From: Jeff Cobb <jeffcobb1 at me.com>
>To: Boyd Casey <boyd411 at gmail.com>
>Cc: detomaso <detomaso at poca.com>
>Sent: Sun, Sep 22, 2013 7:31 am
>Subject: Re: [DeTomaso] starter electrical system problem
>
>
>Hey Boyd, 
>The starter will affect the solenoid and damage it, if the starter load
>is too 
>high.
>The electrical load path must be converted into electromechanical starter
>function or heat, 
>the contact arcing solenoid disc can only handle so much.
>A solenoid should always be the first to replace in a starter disfunction.
>Cheap and easy.
>
>Jeff Cobb
>
>On Sep 22, 2013, at 12:28 AM, Boyd Casey <boyd411 at gmail.com> wrote:
>
>> I just (since may) replaced two starters and it turned out that the
>>problem
>> was the solenoid on the fire wall was cracked and operated
>>intermittently .
>> So I could have saved hundreds of dollars and hours of frustration for a
>> part that cost around 12 bucks!
>> The starter won't effect the firewall solenoid but the solenoid will
>> prevent the starter from cranking.
>
>> Boyd
>> 
>> On Saturday, September 21, 2013, Sean Korb wrote:
>> 
>>> They're so inexpensive and available you might just want to replace the
>>> relay anyway.  Many  of the parts stores only carry the later style
>>>now but
>>> it's easily modified and works well.
>>> 
>>> sean
>>> 
>>> 
>>> On Sat, Sep 21, 2013 at 11:23 PM, Pantdino
>>><pantdino at aol.com<javascript:;>>
>>> wrote:
>>> 
>>>> 
>>>> Based on the pitch of the sound and where it seems like it is coming
>>> from,
>>>> it really sounds like a relay on the firewall rather than anything on
>>>>the
>>>> motor.
>>>> 
>>>> Would a starter failure cause the relay to buzz? If so, why?
>>>> 
>>>> Jim
>>>> 
>>>> 
>>>> -----Original Message-----
>>>> From: Pantdino <pantdino at aol.com <javascript:;>>
>>>> To: MikeLDrew <MikeLDrew at aol.com <javascript:;>>; detomaso <
>>> detomaso at poca.com <javascript:;>>
>>>> Sent: Sat, Sep 21, 2013 2:27 pm
>>>> Subject: Re: [DeTomaso] starter electrical system problem
>>>> 
>>>> 
>>>> 
>>>> I'll have to crawl under there and have someone engage the starter
>>>>while
>>> I
>>>> listen.
>>>> The good news is the car was on the lift for changing the brake fluid
>>> when
>>>> this
>>>> happened, :-)
>>>> 
>>>> 
>>>> 
>>>> 
>>>> -----Original Message-----
>>>> From: MikeLDrew <MikeLDrew at aol.com <javascript:;>>
>>>> To: pantdino <pantdino at aol.com <javascript:;>>; detomaso <
>>> detomaso at poca.com <javascript:;>>
>>>> Sent: Sat, Sep 21, 2013 2:24 pm
>>>> Subject: Re: [DeTomaso] starter electrical system problem
>>>> 
>>>> 
>>>> 
>>>> In a message dated 9/21/13 14 22 8, pantdino at aol.com
>>>><javascript:;>writes:
>>>> 
>>>> 
>>>> 
>>>> My perception is this:
>>>> 
>>>> When engine was shut down one piston had finished its intake stroke
>>>>and
>>>> was
>>>> sitting at the bottom with a cylinder full of gas vapor above it.
>>>> When you crank the engine the piston moves up.  Plugs fire at BTDC,
>>>>no?
>>>> So the
>>>> plug fires before the piston is at TDC and the force of the explosion
>>>> stops the
>>>> piston and crankshaft at that point and the engine stops turning for a
>>>> second
>>>> until the starter moves the crank again.  I'm pretty sure this is what
>>> has
>>>> been
>>>> happening, because with the ignition switched off the starter spins
>>>>the
>>>> engine
>>>> fine.
>>>> 
>>>> 
>>>> 
>>>> 
>>>>>>> Ah, an interesting theory!   If you've proven it empirically, then
>>>>>>>it
>>>> becomes
>>>> more than just a theory.
>>>> 
>>>> Your starter, however, is still a POS, and now it's a *broken* POS.
>>>>:>)
>>>> 
>>>> Mike
>> http://poca.com/mailman/listinfo/detomaso
>
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