[T3] up and Running!

[Mike Fisher]

Lucas brand injector cleaner really helps my wife’s Nissan run better!

On Wed, Sep 30, 2020 at 5:32 PM Keith Park <topnotch at nycap.rr.com> wrote:

>
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> Actually, im running a straight Mark 10, my switch is my own creation
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> on a plate below the coil, its a better quality switch.  I may try injector
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> cleaner, I think Ive ruled out ignition, ive had issues with that but after
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> making sure, yea, all genuine bosch and all in NOS or excellent used shape
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> it was pretty stable.
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>
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> I have another idea with the pressure sensor, more on that as I do some
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> snooping...
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>
> Keith
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>
>
> On 29 Sep 2020 at 20:36, Keith Park wrote:
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>
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> > Another strange anomaly too.  I switched off the Mark 10 to see if
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> > there was a difference that might indicate an ignition issue, that
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> > really didn't change things much. But when I switched it back on, it
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> > didn't want to start, until I switched if off again. and once running
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> > if I switched to the electronic ignition it would die..
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>
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> I like having the switch on the Mark 10B, because it allows me to switch
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> back
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> and forth effortlessly, even while the engine is running. Unfortunately,
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> that
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> feature is also the Mark 10B's weakness, as the switch contacts tend to
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> oxidize over time and stop conducting well. I find that I need to
> "exercise"
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> the
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> switch a few times to get good contact. I had trouble with this on the way
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> back from the AZ Invasion, but finally I just exercised it a few times
> every
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>
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> time we filled up with gas. After doing that, I had no more problems.
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>
>
> > Once it cooled down completely I started it up and switched over to the
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> > Mark 10 and ir kept running.   !!??
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>
>
> You exercised the switch contacts and cleaned them up. That's probably all
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> it needed after sitting while you rebuilt the engine.
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>
>
> > Ive left it on the kettering system for now to eliminate any involvement
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> > of the Mark 10 with the original missing issue but Im starting to wonder
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> > If I have a sticky injector?  I did have a leaker when I put it all back
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> > together as it sat 3 months and that didn't surprise me (and it did seal
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> > back up again)
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> >
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> > But how common is a KNOWN sticky injector, one that sticks SHUT?
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>
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> Even if the pintle moves, the injector passages could be blocked by dried
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> gasoline.
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>
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> > The problem seems to get better the more that I drive it or the warmer
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> > the engine gets. I do have the mixture tweaked just a bit richer and
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> > after driving it last night And having it run perfectly even after some
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> > missing earlier in the day I set the mixture back closer to the set
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> > point and it was missing again this morning.  Drat!
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>
>
> I'd add some SeaFoam to the gas, then drive the car and let it clean up
> the
>
> system. Don't worry too much about getting your tuning just right until
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> everything is completely clean and free-flowing. Otherwise, you'll just be
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> chasing your tail for nothing. For now, try to keep it slightly on the rich
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> side,
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> but lean, on light load, should not be a problem.
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>
>
> Check your ignition HV parts for problems. Check the SP connectors and
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> inspect the cap, inside and out. Stick with genuine Bosch parts. A
>
> continuing
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> miss could be an open SP connector, a tracked cap or coil nose, or a rotor
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> that is arcing thru to the dist shaft.
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>
>
> Yeah, it's nice to be able to pull and replace a Type 4 pushrod tube
> without
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>
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> taking much apart.
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>
>
>
>
> --
>
> *******************************
>
> Jim Adney, jadney at vwtype3.org
>
> Madison, Wisconsin, USA
>
> *******************************
>
>
>
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>
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> --
Eugene, Oregon

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