[DeTomaso] Resurrection

[Mikael]

The more I thought about it, I'm with Roger. Try the easy stuff first:
-fuel filter on
-maybe new needles
-check ground wires
Maybe drive w/o engine cover, so if it happens, you can look back and see if
fuel is coming out float bowls

Mikael

-----Oprindelig meddelelse-----
Fra: Roger [mailto:coatesr8 at aol.com] 
Sendt: 14. april 2013 23:00
Til: Mikael
Cc: Charles McCall; <detomaso at poca.com>
Emne: Re: [DeTomaso] Resurrection

Hi Charlie
I would say that your problem is definitely carb related, I would bet my
last cent that for some reason the carb is flooding, hence the black
smoke.possibly a sticking or worn float needle. Next time it does it I would
stop and just pull any plug, wou will probably see that it is very black an
sooty Roger

Sent from  Roger's iPhone

On 14 Apr 2013, at 20:31, "Mikael" <mikael_hass at mail.tele.dk> wrote:

> Some thoughts...
> 
> If it's like a switch being thrown as opposed to something that creeps 
> up on you, that usually indicates ignition, not carb. Regardless:
> Carb: the feel of missing cylinders and having to rev it to keep it 
> alive and black soot, I've tried that in a boat I bought with a 
> Dominator, it was hardened power valve. But it was all the time...
> Could also be fuel bowls overflowing due to dirt, you need that fuel
filter.
> Dirt could disappear again, thereby fixing itself until next time. Any 
> sign of overflow? Like dirt on the intake, major engine fires?!?!
> Ignition: I had something similar on my Longchamp for a while with a 
> Mallory electronic distr, the problem disappeared when I fixed a not 
> too good battery ground wire. My starting when hot problems also 
> disappeared. The simple things...
> 
> If none of the above helps, I would borrow or buy ignition components 
> until fixed
> 
> Mikael
> 
> -----Oprindelig meddelelse-----
> Fra: Charles McCall [mailto:charlesmccall at gmail.com]
> Sendt: 14. april 2013 15:17
> Til: detomaso at poca.com
> Emne: [DeTomaso] Resurrection
> 
> 1) ..and on the third day, they pushed the rock aside (opened the 
> garage
> door) and found the cave empty with the exception of a loincloth 
> (California Car Cover). The Pantera has come back to life again, for 
> the first time of the year!
> 
> 
> 
> 2) Resurrection of a subject kicked around last year but without 
> coming to conclusions.. My engine for the past couple of years has had 
> an intermittent problem where it feels like a couple of cylinders cut 
> out. I'd like to resurrect the subject to see if we can come up with some
new ideas.
> 
> 
> 
> At first I suspected it was a fuel issue, and disassembled the carb. I 
> did find a lot of very fine powder in the float bowls, which I cleaned 
> out, and installed a fuel filter.
> 
> 
> 
> I changed the spark plugs to rule out a fouling or failing plug. I 
> haven't changed the wires.
> 
> 
> 
> Symptoms - car can run fine for hours or days or months. Then it feels 
> like a switch has been thrown and one or perhaps two cylinders stop 
> firing. I have to put my foot into it to keep the engine running. 
> Black smoke comes out the exhaust, and it I let the revs drop below 2000,
the engine will die.
> This may last for as little as 5 minutes, or as long as 20, although 
> the rough running tends to be interrupted by arriving at my 
> destination. But as quickly as the problem arrives, it suddenly heals 
> itself, the engine goes back to firing on all cylinders, idles happily at
1000rpm, and all is well.
> Perhaps for a day, perhaps for a month, or perhaps for an hour. 
> 
> 
> 
> My engine - 351C, Compcamps 282S cam, Aussie 2v closed chamber heads, 
> Weiand Excelerator intake, Holley 700DP, MSD 6AL, MSD coil. Motorcraft
AF42 plugs.
> MSD plug wires. 
> 
> 
> 
> We had just started talking about whether MSD boxes could act like 
> this when the thread dropped off last year. If this isn't fuel related 
> and is spark related, what can I check?
> 
> 
> 
> Thanks!
> 
> 
> 
> Charles McCall
> Raising Pantera Awareness Across Europe
> 1985 DeTomaso Pantera #9375
> <http://www.poca.com/index.php/gallery/?g2_itemId=2323>
> http://www.poca.com/index.php/gallery/?g2_itemId=2323
> 
> 
> 
> 
> 
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> 
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