[DeTomaso] Hard Start Issue - The Final Solution

Asa Jay Laughton asajay at asajay.com
Mon Mar 6 23:04:35 EST 2017


   Stock Ford Distributor from my Pantera (when I owned it).  Note the
   small felt disc in the center of the shaft where the rotor goes.  That
   sits just above the mating surface of the shaft and advance mechanism.
   Sorry I don't have a photo without the felt disc.
   Asa
Asa Jay Laughton - W7TSC, MSgt, USAFR, Retired
& Shelley Marie
Spokane, WA
******************************
[1]http://w7tsc.org
[2]http://www.teampanteraracing.com

   On 3/6/2017 6:27 PM, Doug wrote:

Mike,

Stock Ford dizzy advance mechanisms are VERY different from MSD's.
The Ford dizzy's advance rides beneath its breaker/reluctor plate and has a
felt pad that holds oil for lubricating the mechanism's bore where it rides
on the main shaft.
MSD dizzys don't have such a lubricating pad and their advance mechanism
rides above its reluctor plate.

The main reason the MSD advance gets bound up over time is precisely because
it lies above its reluctor plate where the ozone created by the spark gaps
within the cap drastically accelerate corrosion of the parts.  The Ford
advance system is far more reliable but the MSD is more easily accessed for
tuning the advance curve.

Doug Braun
Blue 73L #5505

-----Original Message-----
From: DeTomaso [[3]mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Mike Thomas
Sent: Monday, March 06, 2017 5:20 PM
To: 'Larry Weston' [4]<lplugw at hotmail.com>; 'Asa Jay Laughton'
[5]<asajay at asajay.com>; [6]detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Hard Start Issue - The Final Solution

What felt pad?  Didn't see one of those in the MSD 8350
- Mike

-----Original Message-----
From: DeTomaso [[7]mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Larry Weston
Sent: Sunday, March 05, 2017 2:42 PM
To: Asa Jay Laughton [8]<asajay at asajay.com>; [9]detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Hard Start Issue - The Final Solution

Pull off the rotor periodically and apply a drop of oil to the little felt
pad beneath.

Keeps things moving down there.


________________________________
From: DeTomaso [10]<detomaso-bounces at server.detomasolist.com> on behalf of Asa
Jay Laughton [11]<asajay at asajay.com>
Sent: Sunday, March 5, 2017 4:40 PM
To: [12]detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Hard Start Issue - The Final Solution

Awesome write-up.  I recall finding a similar problem on my Mach 1 about
30 years ago.  Now whenever I replace the cap and rotor, I check the
mechanical advance.  :)

Asa  Jay

Asa Jay Laughton - W7TSC, MSgt, USAFR, Retired &  Shelley Marie Spokane, WA
******************************
[13]http://w7tsc.org
[[14]http://w7tsc.org/cache/thumbs/19ce51cba936b2853c041bad09543add.JPG][15]<htt
p://
w7tsc.org/>

W7TSC[16]<http://w7tsc.org/>
w7tsc.org
Amateur Ham Radio hobby information for W7TSC, AN/TSC-60(V)9, Yaesu System
Fusion DR-1X repeater and more



[17]http://www.teampanteraracing.com
Team Pantera Racing[18]<http://www.teampanteraracing.com/>
[19]www.teampanteraracing.com
Team Pantera Racing - The place to follow Open Road Racing and other
Pantera's engaged in high performance events.





On 3/5/2017 12:27 PM, Mike Thomas wrote:

Some months ago I posted a help needed for a hard start issue I was
having with 6328.  I was usually when it was hot, but not always.

I had a number of helpful suggestions, many of which leaned towards it
being a timing issue.  That was the route I went down to try to solve
the problem, but it never quite did the job: I either solved the hard
start but had a lot of pinging, or no ping and hard start.

It was not until Doug Braun helped my dive into my MSD 8350 R2R that
we found the problem - the mechanism that allows the mechanical
advance had seized up, and would not allow proper advance as timing
increased.  So, to get rid of the ping, I was trying to start the car
at 32 degrees BTDC - no wonder it didn't like doing that when it was hot.

Doug completely disassembled the dizzy, we used 000 steel wool to
clean up the shaft and lubed it with silicon lube, reassembled with
double roll pins, and it's now back in the car.  The tune to set the
timing, once I realized the #5 and 6 plug wires were switched (DOH!)
went

very smoothly.

Just got done from the first test drive and she's running better than
she has in years, and three hot starts all on one flick of the key.
According to Doug, who has also used the MSD distributor, it ought to
be rebuilt about once every five years so make sure the mechanical
advance is working properly and the shaft is turning freely in the
dizzy

to allow the advance.

Have a great weekend!
Mike Thomas
Pres., Panteras Northwest
Yellow '74 #6328



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References

   1. http://w7tsc.org/
   2. http://www.teampanteraracing.com/
   3. mailto:detomaso-bounces at server.detomasolist.com
   4. mailto:lplugw at hotmail.com
   5. mailto:asajay at asajay.com
   6. mailto:detomaso at server.detomasolist.com
   7. mailto:detomaso-bounces at server.detomasolist.com
   8. mailto:asajay at asajay.com
   9. mailto:detomaso at server.detomasolist.com
  10. mailto:detomaso-bounces at server.detomasolist.com
  11. mailto:asajay at asajay.com
  12. mailto:detomaso at server.detomasolist.com
  13. http://w7tsc.org/
  14. http://w7tsc.org/cache/thumbs/19ce51cba936b2853c041bad09543add.JPG
  15. http://w7tsc.org/
  16. http://w7tsc.org/
  17. http://www.teampanteraracing.com/
  18. http://www.teampanteraracing.com/
  19. http://www.teampanteraracing.com/
  20. mailto:DeTomaso at server.detomasolist.com
  21. http://server.detomasolist.com/mailman/listinfo/detomaso
  22. http://server.detomasolist.com/mailman/listinfo/detomaso
  23. http://www.avg.com/
  24. http://www.avg.com/
  25. http://upload.wikimedia.org/wikipedia/commons/thumb/6/6b/AVG_wordmark.png/2
  26. http://www.avg.com/
  27. http://www.avg.com/
  28. http://www.avg.com/
  29. mailto:DeTomaso at server.detomasolist.com
  30. http://server.detomasolist.com/mailman/listinfo/detomaso
  31. http://server.detomasolist.com/mailman/listinfo/detomaso
  32. mailto:DeTomaso at server.detomasolist.com
  33. http://server.detomasolist.com/mailman/listinfo/detomaso
  34. mailto:DeTomaso at server.detomasolist.com
  35. http://server.detomasolist.com/mailman/listinfo/detomaso
  36. http://www.avg.com/
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