[DeTomaso] Not Pantera car question (TR6 fuel)

[Kurt Byrnes]

I'm not real familiar with TR6's but race an old MG that has a similar 
fuel system.  Can you plumb an electric fuel pump in as a test?

I'm guessing you're still running the SU carbs.  If so, they typically 
only need about 3 psi.

I would get a low pressure Facet pump from your local parts store and 
see if it cures your issue.  I've been running the same "cube" style 
Facet pump for years on my MG.

Kurt
On 5/9/2022 3:13 PM, JFByrd via DeTomaso wrote:
> Thanks to all the suggestions.
> A little update.
>
> As for the cleanliness of the tank. . . I crawled up on the trunk lid and
> can easily see the condition of the insides.   I was surprised by how CLEAN
> it is.   I used a pickup magnet and got nothing!
> Disconnecting at pump inlet, I get a good stream of fuel.   Back blowing
> with air did not put any thing into tank and flow was same afterwards
>
> The tank "vent" is part of an evaporative emissions setup that I need to
> check farther.  (think it might pull a slight vacumn when working proper)
> But I can easily reach back and open the fill cap as driving.
> The bottom of tank and pump inlet are within an inch of being the same
> "head"
>
> I vented the inlet filter as to remove all air.   Today was a cool day
> (60's) and after 30 minute drive with no problem, when I shut off, I watched
> the fuel filter go empty!
> The fuel pump is too hot to hold! Lines are cool.
> I am assuming the heat is coming from being bolted to the block, so I don't
> know if a shield   or insulation would help.   Maybe adding a "heat sink"?
>
> I am using non ethanol 93 octane, but not sure is winter or summer blend.
>
> While I had a couple vapor lock problems in the YEARS my Wife and I drove
> regular, just wonder why is it so bad now?
>
>
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