It that a Hall sensor when the tach drops suddenly?

Jeff

Sent from my iPhone

> On Aug 10, 2019, at 2:11 PM, Ray Brubaker <rayandmerle@gmail.com> wrote:
>
> The tach followed the engine speed, it would flick when the engine would
> sputter as it was dying but I was thinking it was because the speed
> increased momentarily. Are you thinking coil or triggering of the coil?
>
> Thanks
>
>> On Sat, Aug 10, 2019 at 1:49 PM William Monk <billmonk@gmail.com> wrote:
>>
>> Do you recall if you were able to see the tach when it quit? Did it drop
>> instantly or still follow the engine speed?
>>
>> Sent from my iPhone
>>
>>> On Aug 10, 2019, at 1:12 PM, Ray Brubaker <rayandmerle@gmail.com> wrote:
>>>
>>> thanks for the quick reply. I have considered the filter but wondered how
>>> it would be passing enough fuel for a high power run on the express way
>> and
>>> then die at idle. And why would it then work again after 10 min? It seems
>>> to be temp related but I can't figure out how. I don't have a new filter
>>> handy, I may have an old one that was removed at an engine change that
>> was
>>> still working. It is easy to change.
>>>
>>> Ray
>>>
>>>> On Sat, Aug 10, 2019 at 12:45 PM <starwagen@gmail.com> wrote:
>>>>
>>>> First thought is fuel filter.  And easy to swap out.
>>>>
>>>> On Sat, Aug 10, 2019 at 9:35 AM Ray Brubaker <rayandmerle@gmail.com>
>>>> wrote:
>>>>
>>>>> Hi, Thanks for this great list. I have read it regularly for years but
>>>>> don't recall reading about what just happened to be me. I have a '89
>> Blue
>>>>> Star auto  original 2.1. I drove to the airport, 25 mi, to pickup my
>> son
>>>>> and family. Returning with a full load, 8 people, ( I modified to use
>> the
>>>>> two seat slide in middle seat with one rear facing seat at the door)
>>>>> youngest grandchild is 15, and a full load of luggage. Had gotten off
>> the
>>>>> express way after cruising at 70 for about 15 min. and was in stop and
>> go
>>>>> traffic for another 15 min. when I stopped at a red light. The engine
>> came
>>>>> to idle then sputtered a few times and quite. Cranking, it would
>> sputter a
>>>>> few times but wouldn't start. Pushed it into a median. Unloaded the
>> back,
>>>>> checked the engine, found nothing amiss, checked that the fuel pump was
>>>>> working normally, tank was 3/4 full (tank was new about a year ago). We
>>>>> were running with AC on, temp was in mid range, not overheated. After
>>>>> about
>>>>> 10 min. I was able to get it to start and got going again. Slipped it
>> into
>>>>> neutral and kept it revved a little at every stop but it still quite
>> the
>>>>> same way in about 10 min. This time I felt the fuel pump while my son
>>>>> cranked the engine and thought I felt and heard something that may have
>>>>> been cavitation. Again after about 10 min. it started and we drove
>> home,
>>>>> about 15 min., with no incident ( I left the AC off). Yesterday I
>> checked
>>>>> fuel pressure, 33 psi with vac connected, 39 with it disconnected,
>> normal.
>>>>> Checked leak-down, normal, about 1 psi in a half hour.
>>>>>
>>>>> It seems like it is fuel related. To me it acted like vapor lock but
>> that
>>>>> shouldn't happen to a running injected engine.
>>>>>
>>>>> Thanks for any thought on this problem,
>>>>>
>>>>> Ray
>>>>>
>>>>
>>