[DeTomaso] Erratic firing

[gow2 at rc-tech.net]

I would hate to jump to conclusions with assumpions so it would be good to
confirm you still have a good fuel supply to the carb.

Gary


> The timing chain is a double roller high quality steel unit, and the
> distributor (and entire ignition system) came from Dennis at PPC in CO
> (I'm pretty sure he takes care of the pin issues when he provides the
> setup).
>
> You're right though, I should check the timing before yanking the box off.
>
> Thanks Sean.
>
> Sent from my iPhone
>
>> On Dec 29, 2013, at 14:51, Sean Korb <spkorb at gmail.com> wrote:
>>
>> Um... shears.  The distributor pin shears.  Geeze.  Spell check just
>> isn't helpful.
>>
>>> On Sun, Dec 29, 2013 at 3:50 PM, Sean Korb <spkorb at gmail.com> wrote:
>>> Sounds like the timing is retarded.  Check the timing and see if it is
>>> stable.  Sometimes if the distributor pin stears or timing set wears
>>> it can get retarded fairly dramatically.
>>>
>>> sean
>>>
>>> On Sun, Dec 29, 2013 at 3:21 PM, Richard Greenblum
>>> <pantera at austin.rr.com> wrote:
>>>> All,
>>>>
>>>> Rebuilt the Holley because it bucked when under load, otherwise ran
>>>> great.  Before putting it back on, welded up the door panel holes in
>>>> the right door because they were stupidly enlarged by the shop that
>>>> painted the car.  Put the carb back on and it wouldn't run for longer
>>>> than a few seconds before losing RPM and misfiring and back firing,
>>>> then dying.  Assumed it was a bad rebuild.  Put a brand new carb on,
>>>> same symptoms.
>>>>
>>>> It also seemed to gain temp from cold very quickly.  I turned on the
>>>> fans (they're manually switched).  The engine immediately backfired
>>>> twice, so I turned off the fans and killed the motor.
>>>>
>>>> In between the flat, misfiring, and rough running, it ran smoothly.
>>>>
>>>> I forgot to disconnect the battery before welding on the door, then
>>>> figured (hoped) the few spot welds wouldn't do what Jack has warned us
>>>> about.  The box is a Mallory HyFire, and it's been on the car for a
>>>> long time.
>>>>
>>>> Suggestions welcomed.
>>>>
>>>> I thought I was going to finally get the car back on the road...
>>>>
>>>> Richard
>>>> Austin, TX
>>>>
>>>> Sent from my iPhone
>>>>
>>>>> On Dec 29, 2013, at 11:26, "Stephen Nelson" <steve at snclocks.com>
>>>>> wrote:
>>>>>
>>>>> Did some of the Panteras come with 2 bolt mains?
>>>>>
>>>>> Stephen Nelson
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>>
>>>>> Detomaso Forum Managed by POCA
>>>>>
>>>>> DeTomaso mailing list
>>>>> DeTomaso at poca.com
>>>>> http://poca.com/mailman/listinfo/detomaso_poca.com
>>>>
>>>> _______________________________________________
>>>>
>>>> Detomaso Forum Managed by POCA
>>>>
>>>> DeTomaso mailing list
>>>> DeTomaso at poca.com
>>>> http://poca.com/mailman/listinfo/detomaso_poca.com
>>>
>>>
>>>
>>> --
>>> Sean Korb spkorb at spkorb.org http://www.spkorb.org
>>> '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
>>> #1382
>>> "The more you drive, the less intelligent you get" --Miller
>>> "Computers are useless.  They can only give you answers." -P. Picasso
>>
>>
>>
>> --
>> Sean Korb spkorb at spkorb.org http://www.spkorb.org
>> '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
>> #1382
>> "The more you drive, the less intelligent you get" --Miller
>> "Computers are useless.  They can only give you answers." -P. Picasso
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
> DeTomaso mailing list
> DeTomaso at poca.com
> http://poca.com/mailman/listinfo/detomaso_poca.com
>