[V8] V8 cutting out at about 1800 rpm

[dsaad at icehouse.net]

I don't think the sensor is replaceable unless you can press apart the
distributor shaft. If I remember, there is a tapered pin that holds on the drive
gear on. Once removed - and if you had the replacement part, it could probably
be fixed but this will require the services of a machine shop.

This type of sensor is easily tested off the car. Using the wiring diagram,
identify the +5v, ground, and signal wires. Remove the distributor, hook it up
to a 5v power supply and watch the output switch with a voltmeter as you rotate
the shaft by hand.
If you have a temperature related problem maybe you could heat the thing up with
a hot air gun.

My bet however is still on missing ring gear teeth.

Dave


Quoting cobram at juno.com:

> Maybe they changed something on later models (mine is an early 1989
> build), but I forgot to connect the hall sender after doing a timing
> belt, and drove around with it disconnected for more than a week, with no
> noticeable problems except for some lack of power.  Mike L of this list
> drove around for a while with a bad hall sensor in one of his V8Q's.
> On the V8Q, I vaguely recall a past thread about how no hall sensor
> signal will back the timing 16 degrees (maybe 20..going from memory), and
> disable the knock sensors.
>
> On the 5 cylinder type 44's, the car won't start at all with a bad hall
> sensor, it's job is TDC #1 reporting at startup which has to match the
> reference pin position.
>
> The hall sensors might still be available separately.  If someone (braver
> than I) wants to weed through the V8Q archives, I recall a thread on the
> subject in which a Qlister (hopefully reading this) found the hall sensor
> kit from some VW application was a direct replacement for the V8Q hall
> sensor.
>
> BCNU,
> http://www.geocities.com/cobramsri/
>
> "Alan Kramer" <ackramer at hotmail.com> writes:
> > It's your hall sensor (in the passenger side distributor).   BTDT,
> > exact symptoms you describe.  Rebuilt ones can be obtained from your
> > favorite worldpac supplier.  New distributors are NLA.
> >
> > Alan
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