[DeTomaso] starter electrical system problem
forestg at att.net
Sat Sep 21 20:51:15 EDT 2013
Ford did this almost 30 years ago. They called it Duraspark.
From: dave londry <davel at emspace.com>
To: List DeTomaso <Detomaso at poca.com>
Sent: Saturday, September 21, 2013 4:50 PM
Subject: Re: [DeTomaso] starter electrical system problem
This is standard procedure for the 1/4 mile boys with very high compression.
It's not necessarily that they won't crank, but they rip teeth out of
flexplates and other neat stuff.
And yes, it's simply the cylinder firing with and the piston headed
upwards because of initial advance.
Hey! - we could re-invent the spark-retard lever.
On 21/09/2013 2:36 PM, Pantdino wrote:
> The other thing is that since the engine is so close to me I can actually hear it fire then a funny low-pitched noise as the crank is driven backward a bit. Not a nice thing to hear. Hence the ignition cut out switch (which also serves as an anti-theft switch)
> -----Original Message-----
> From: MikeLDrew <MikeLDrew at aol.com>
> To: pantdino <pantdino at aol.com>; detomaso <detomaso at poca.com>
> 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 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. :>)
> Detomaso Forum Managed by POCA
> DeTomaso mailing list
> DeTomaso at poca.com
Detomaso Forum Managed by POCA
DeTomaso mailing list
DeTomaso at poca.com
More information about the DeTomaso