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1984 engine /driving issue

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Old 04-20-2020, 04:04 PM
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Nineone1fun
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Default 1984 engine /driving issue

3 weeks ago my intention was to enjoy the first drive of the year. First start up ,does not run on all cilinders and as soon as the throttle is hit the engine does die. Fuel system checked and ending up at injector 1 as a suspect as i did think ... . 4 following days start and runs fine . Day 5 drive out of the garage and the car does stumble like you would cut the fuel for a second and back on , so it chakes up and down and it is undrivable. Before winter all fine with no similar issue at all . Now day 15 and still intermittent running on 4-5cilinders and eventually on all 6 but impossible to drive as still the same stumble cut out and run symptom. What was done /checked or replaced recently. Fuel lines checked , even fuel tank filter and fuel drained and fresh 98 in .
Flywheel sensors checked and only two years old.
Throttle idle switch new and adjustment as per book together with full throttle switch.
MAF is a refurbished unit .
Idle speed adjuster is new
Fuel press regulator and damper are new .
Fuel pump bosch new .
Coil swap , ignition cables checked .

So my call is helppppp.
thx
Old 04-23-2020, 08:36 AM
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Nineone1fun
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Nobody having any idea ?
Old 04-23-2020, 10:47 AM
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theiceman
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Not much technically talent on this board anymore. Most have moved on to Pelican , that is without a doubt the best place to go to look for this kind of help. I have a CIS car and have never experienced your type of issue so cant really help.

Old 04-23-2020, 11:57 AM
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Nineone1fun
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Thanks for the reply , i will trey pelican .
Old 04-23-2020, 09:16 PM
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stlrj
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I'm from Pelican,

One question: Any chance it's been parked outside all winter?

Cheers,

Joe
87 Carrera that sleeps in a heated garage
Old 04-24-2020, 02:05 AM
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budge96
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Possibly check the ignition rotor and cap,, short of that check your plugs for fouling ....


if nun of this gets satisfaction possibly the head temp sensor has gone bad they run erratically or not at all when head temp goes bad..

I am working on a similar situation with an '86 no spark no fuel , just replacing the fuel pump after both sensors r placed ..

bert
Old 04-24-2020, 10:41 AM
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Nineone1fun
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Originally Posted by stlrj
I'm from Pelican,

One question: Any chance it's been parked outside all winter?

Cheers,

Joe
87 Carrera that sleeps in a heated garage
no no , it's a garage lady no winter wet .
Old 04-24-2020, 10:43 AM
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Nineone1fun
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Originally Posted by budge96
Possibly check the ignition rotor and cap,, short of that check your plugs for fouling ....


if nun of this gets satisfaction possibly the head temp sensor has gone bad they run erratically or not at all when head temp goes bad..

I am working on a similar situation with an '86 no spark no fuel , just replacing the fuel pump after both sensors r placed ..

bert
was missing from the list but rotor and cap are new and temp sensor is measured ok and was also replaced during rebuild .
Old 04-26-2020, 03:33 PM
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r911
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plugs?
Old 05-06-2020, 01:55 PM
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Nineone1fun
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Most probably found the f... bad boy .

Top spacer in a sort of none metalic material was gone . Spring on the weight was also gone , not sure when but anyway when distributor was removed he did have a axial play of 1.5mm iso 0.1mm.
Old 05-06-2020, 01:56 PM
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Nineone1fun
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Awaiting a spacer rebuild kit to know if we are finally out of the woods .
Old 05-08-2020, 07:38 AM
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Nineone1fun
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A correction , the play on the distributor was longitidunal but anyway out of the woods.
so if I may , if you have your distributor out for wathever reason check the play on the shaft .
it should be 0.1 a 0.15mm if not you may end with a broken shim and lot of play as I did .
Old 05-09-2020, 10:56 AM
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stlrj
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It's quite possible that moisture could have condensed inside your distributor and ignition cables during a long cold winter. Keep in mind that Beru ignition cables are prone to moisture contamination due to multiple connectors that allow the stranded copper to corrode. Check #4 plug connector. That's the one that tends to corrode since it's more exposed to the elements than the rest.

Last edited by stlrj; 05-10-2020 at 01:48 AM.
Old 05-13-2020, 02:31 PM
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Nineone1fun
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Thx for the info.
just did the revision and the installation of the distributor and it runs like a champ.So finaly out of rhe woods 👍



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