[Healeys] High speed miss - CARBS?

Bob Spidell bspidell at comcast.net
Mon Aug 26 20:47:47 MDT 2013


... also too, look for bubbles in the fuel flow (submerge end of fuel line in fuel).

Bob


On 8/26/2013 6:57 PM, Alan Seigrist wrote:
> Take the main fuel line off the carb and start the ignition, letting fuel
> dump into a big jar.  If it is pumping out in a slow stream, then probably
> something is wrong with your pump.  Also check in the jar for dirt/rust.
>   Also possible that something is clogging the inlet pickup inside the
> tank....
>
> On Tuesday, August 27, 2013, john spaur wrote:
>
>> I still have a misfire at high speeds and at low speeds when I accelerate.
>>
>> The timing seems to be set correctly and the fuel tank, pump, lines,
>> filter, needle seats and float chambers are clean. The plugs and points are
>> gapped correctly.
>>
>> The carbs were rebuilt but I don't believe the piston/suction chambers are
>> to factory specifications. The carbs are original and I am wondering if
>> that is why I am getting the misfire (it is not a back fire through the
>> exhaust).
>>
>> Has anyone had similar symptoms that were cured only by replacing the
>> carburetors with new ones?
>>
>> TIA
>>
>> John Spaur
>> '62 BT7
>>
>>


-- 
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Bob Spidell           San Jose, CA            bspidell at comcast.net

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