[TR] TR4A - This Seems Odd

[Paul Tegler]

seconded (vac leak)

also manually (by hand) check and push up on the jet tubes 
underneath..not uncommon to stick open a bit


ptegler

On 9/6/2019 11:10 AM, Bob wrote:
>
> Guy,
>
> I run HS6s on my TR4. They came off a 67 4A. I have zero trouble with 
> them. Car idles fine and throttle response is similar to my 3, which 
> has H6s and my 6 which has the Hitachi HS6 carbs. I think you may have 
> a vacuum leak somewhere, manifold most likely or maybe a problem with 
> the float valve? What fuel pump do you use? I have the Facet model on 
> all 3 running about 2PSI at the regulator.
>
> But even with the mixture nut all the way up, there will still be fuel 
> to the throttle body that is if you have the needle installed on the 
> piston correctly.
>
> Bob
>
> On 9/6/19 10:34 AM, G.D. Huggins wrote:
>> All,
>>
>> Here???s another thing to ponder whilst I wait for my rebuilt lever 
>> shocks to arrive..
>>
>> My engine will idle under the following conditions:
>>
>>   * Idle screws are backed off all the way, not touching the plate,
>>     therefore not opening the throttle plate. ??(In theory, they are
>>     fully closed.)
>>   * Mixtures nuts all the way lean. (In theory, there should be ZERO
>>     fuel going into the carbs.)
>>   * Both the throttle and choke are loosened from the linkage, making
>>     sure jets are all the way up, and throttles are not sticking
>>
>> For the record, these are professionally rebuilt HS6 carbs, with 
>> super throttle shaft bushing, perfectly centered jets, etc.
>>
>> In what is ostensibly a ZERO fuel/air mixture, how is this engine 
>> running?
>> Do these engines just have a magic power to idle when starved?
>>
>> Has anyone else witnessed this on their own cars?
>> If so, should I do anything? ??If so, what? ??(other than maybe looking 
>> to make sure the needles/jets are matched correctly)
>>
>>
>> Kind Regards,
>>
>> Guy D. Huggins
>> gdhuggins at genfiniti.com <mailto:gdhuggins at genfiniti.com>
>> 817.454.6415
>>
>>
>>
>>
>>
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-- 
Paul Tegler
ptegler at verizon.net  www.teglerizer.com

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