[DeTomaso] Engine stall under hard braking

eb0711 at kolumbus.fi eb0711 at kolumbus.fi
Wed May 22 09:00:20 EDT 2013


Just got a strip dominator from US with help from Mike Drew.  I'm 
beginning to think I'll shave that straight, put it in,  adjust the 
floats and give it a go. I planned to do this anyway at some point, but 
now I have the reason to do it soon. :)

Will be interesting to see if this solves it by itself.

Thanks,
-Janne


5/22/2013 3:08 PM, Will Kooiman kirjoitti:
> I had the same thing years ago.
>
> I tested on an empty road.  I removed the air filter and hit the brakes.
> Fuel comes out of the REAR BOOSTERS.  NOT the vents.  Vent whistles won't
> fix that, nor will a tube connecting the vent pipes.
>
> I tried everything on your list, but it did nothing.
>
> I finally leveled the carburetor, and then reset the float levels.  After
> that, I could stand on the brakes without killing the engine.
>
> The intake is made for a front engine car, which tilts the engine down in
> the back to make it easier for the transmission to fit under the car.  The
> carburetor is tilted in the front to level the carburetor.
>
> The Pantera mounts the engine level, but the carburetor is still tilted
> down in the front.
>
> I leveled my carburetor by modifying a plastic carburetor spacer.  You can
> probably buy a tilted carburetor spacer, so you don't have to modify your
> own.
>
> You do not need to bend the carburetor studs.  The studs are smaller than
> the holes in the carburetor.
>
> My advice is to first level the carburetor, and then set the float levels.
>   And then, you need to readjust the idle screws, the timing and the jets.
>
> And just to keep me honest, try hitting the brakes with the air filter
> removed.  Just make sure you are safe - empty road, no traffic, etc.
>
> --
> Will
>
>
>
>
>
> On 5/22/13 1:14 AM, "eb0711 at kolumbus.fi" <eb0711 at kolumbus.fi> wrote:
>
>> Thanks to all for inputs. Sounds like the plan goes like this:
>>
>> Check float levels
>> test
>> Add whistle to the rear bowl, if there's not one there
>> test
>> Connect the vent pipes
>> test
>>
>> -Janne
>>
>> 5/22/2013 6:37 AM, Don Thomas kirjoitti:
>>> If you are braking hard you should have a fuel baffle / whistle.
>>> See: http://holley.com/26-89.aspv
>>>
>>>
>>> On Tue, May 21, 2013 at 11:46 AM, eb0711 at kolumbus.fi
>>> <mailto:eb0711 at kolumbus.fi> <eb0711 at kolumbus.fi
>>> <mailto:eb0711 at kolumbus.fi>> wrote:
>>>
>>>
>>>      I have a practically stock engine, but with holley vacuum secondary
>>>      carb. I've been doing couple of hard brakings now that I have
>>> rebuilt
>>>      the brakes, and love the brake performance. However I've succeeded
>>> to
>>>      stall the engine a few times under braking.
>>>
>>>      Thinking it could be carb and fuel slosh related, but where to
>>> begin?
>>>
>>>      Cheers,
>>>      Janne
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