[DeTomaso] GUMBALL PANTERA BREAKS DOWN OVER WEEKEND

[Mikael]

Had all kinds of problems with a Mallory Dist on my Longchamp, especially
when hot, for a while. Ended up removing the Mallory Dist and module and
putting a points (!) Accel Dist in, all problems gone

Mikael


-----Oprindelig meddelelse-----
Fra: Jim Gray [mailto:grayjim at att.net] 
Sendt: 7. september 2011 22:42
Til: LEVITT1946 at aol.com; detomaso at realbig.com
Emne: Re: [DeTomaso] GUMBALL PANTERA BREAKS DOWN OVER WEEKEND

Bob,

I hate to tell you this but I have had the exact same Mallory distributor
failure in two differnt Panteras that I have owned.  Whatever they say about
the wires I would not drive across the street with a Mallory distributor
UNLESS I had a spare module in the glove box.

Just my experience.

Jim Gray


----- Original Message ----
From: "LEVITT1946 at aol.com" <LEVITT1946 at aol.com>
To: detomaso at realbig.com
Sent: Wed, September 7, 2011 3:25:26 PM
Subject: [DeTomaso] GUMBALL PANTERA BREAKS DOWN OVER WEEKEND


Hello Friends ,

I thought compelled  to tell the group what transpired over this past
weekend with the Gumball Pantera . 

Just before the Gumball in May of 2009 I made the following  improvements in
the engine compartment.

New Spark Plug Wires MSD PART #31199

NEW HOLLEY 650 DP

NEW MALLORY COIL
NEW MALLORY BALLAST RESISTER 

NEW ROTOR  AND CAP FOR MY MALLORY UNILITE DISTRIBUTOR

NEW AUTOLITE SPARK PLUGS PLUGS  

I set out this past Sunday for a 2.5 Hr ride to Lime Rock Raceway in
Connecticut. The car was humming like it usually does for the first 100
miles and then while moving at about 60 mph the car shut off and I rolled
into the nearby gas station. I thought it was a stuck float in my holley 650
so i tapped  the adjusting screw and the car started right up and then shut
off. 

I removed the float adjusting rod and put all back together. Still the  car
would not run. I decided to try and limp to Lime Rock since there were
mechanics on hand . I got 1/2 mile and the car shut off again. 

I called a flat bed and was taken to the track . Mechanics at the track
replaced the coil and the ballast resister .

The car fired right up and I thought this was the end to my  nightmare. I
also noticed that the fuel pressure was very high at 9.5 to 10.The mechanics
said that the carb could handle that pressure..So I believed .

At 4:30 I got  back into my car followed by a 1973 Pantera Buddy from  the
Long Island Pantera Club.

One hour later the car was down for the count again. Thinking this was a
dirt in the carb fuel issue I removed the carb turned it over and dumped out
all  the fuel in the carb. She started up, but this time I noticed that the
tachometer was flying all over the place. Now I knew this was not a fuel
issue  but something wrong in the ignition/electrical system . I was stuck
in the  middle of nowhere .

After waiting 4 1/2 hrs  for a flatbed to arrive we loaded the car  once
again and I took the car to Danbury CT. to a friend that loves to fix
electrical issues.

The first thing my friend said after reading the Mallory Unilite instruction
manual was WRONG WIRES ON THE CAR !

He said I will bet the Module in the mallory distributor is fried .

I spoke with Mallory today and confirmed that the MSD wires used are in fact
the culprit. Over time the wires will break down the Distributor module and 
it will eventually  cease to work. 

I am telling you all this because if anyone is running a similar setup,GET
RID OF THE WIRES AT ONCE.

Mallory recommended the foilowing  :

Unilite Distributor with  #30450 COIL 

Carbon or Graphite Core Wire ONLY (SIDEWINDER PART # 931)

If the system is reading 1.4 ohms or less you need the ballast resister .If
above 1.4 ohms there is no need for the ballast resister.

Now I also  spoke to  Holley and they said the fuel pump pressure  is way to
high and that the fuel pump should be replaced as well with Holley  part #
12-854. This mechanical pump will be 80 gph compared to the 30gph that I had
on the car . The fuel pressure will only put out a max of 7.5. Fuel
pressure  of 10 will blow the seals of the carb.

Any suggestions or comments  would be greatly appreciated.  

Best Regards,
Bob Levitt
Team Pantera Racing #3196
Gumball3000 #56
  
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