[DeTomaso] Erratic firing

Richard Greenblum pantera at austin.rr.com
Sun Dec 29 16:31:17 EST 2013


I mounted mine using they rubber idolaters right out of the box.  That could be the problem, but I think it's probably the welding...

Anyone out their ever returned a Mallory HyFire box?

Sent from my iPhone

> On Dec 29, 2013, at 15:17, MikeLDrew at aol.com wrote:
> 
> 
> In a message dated 12/29/13 12:22:41 PM, pantera at austin.rr.com writes:
> 
> 
>> The box is a Mallory HyFire, and it's been on the car for a long time.
>> 
>> Suggestions welcomed.
> 
> 
> >>>If you read the instructions for the HyFire unit, I'm fairly certain they are VERY clear that under no circumstances can you weld on the car with the box installed.  Doing so will instantly fry circuits on an MSD box and I presume the Mallory is no different.
> 
> What you describe is pretty clearly an ignition problem, unrelated to the carb.....
> 
> FWIW when my MSD box conked out, it did so because it wasn't mounted properly (it was bolted directly to the firewall without using the included rubber isolators, and no I didn't install it!).  The vibrations killed it.  It worked fine for a few years, then it started acting like yours, and then it quit completely.  Replacing the box (and installing it properly) fixed it.
> 
> Mike
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