[DeTomaso] Hard Start Issue - The Final Solution

[Charles Engles]

Dear Steve and Mike,


                  I, too, had the same problem a few years ago.  When I
finally was shown what the problem was, it amazed me.   I didn't see rust,
but some form of peculiar oxidation and/or corrosion of the non-iron parts
inside the distributor that prevented the mechanical advance from working
properly.  There was so much schmutz that I pulled the whole thing and had
a pro clean it properly.  


                                             Warmest regards,  Chuck Engles

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Stephen
Sent: Sunday, March 05, 2017 2:32 PM
To: 'Mike Thomas'; detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Hard Start Issue - The Final Solution

I now have two cars with MSD distributors and am amazed at how much rust
they accumulate.  I have tried spraying the inner workings with Boeshield
(wax dissolved in solvent) and will see how they do, but wow - they sure
like to rust.  But, then too, my Pantera is now set up with the timing
advance controlled by the Atomic FI system, as will the Daytona's in about a
month - so at least won't have to worry about the mechanical advance
working.

Stephen Nelson


-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Mike Thomas
Sent: Sunday, March 05, 2017 12:28 PM
To: detomaso at server.detomasolist.com
Subject: [DeTomaso] Hard Start Issue - The Final Solution

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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