Random stuttering/cutting on way to work this morning

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Diyhell
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Random stuttering/cutting on way to work this morning

Post by Diyhell » Mon Oct 15, 2018 10:50 am

Not looking forward to the 1hr journey home today (half motorway :shock: ) with the Essex engine randomly stuttering and losing power on the way in this morning.

Seems electrical (tried adding some manual choke but didn't seem to wholly resolve the issue) - had a quick check under the bonnet but nothing seems amiss.

Any thoughts?


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Random stuttering/cutting on way to work this morning

Post by demonbluedays » Mon Oct 15, 2018 11:43 am

Coil/dizzy maybe? Be my first poets of call


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Random stuttering/cutting on way to work this morning

Post by oilrag » Mon Oct 15, 2018 11:50 am

A friend of mine had similar problem last week in his essex powered tvr3000m ,he struggled to my workshops and i multimeter checked all of the usual connections around coil/ dist etc ,nothing wrong,no loose or broken wires,then i saw his key ring,hanging from the ignition switch was half a pound of various metal,swinging in the breeze, so i removed ignition key from the bunch ,placed in lock and started engine,it idled happily ,a gentle tap on key caused a misfire .......the rotary switch at bottom of barrel was buggered,handily i had a new spare for my gtc ,swapped it over ,no misfire anymore and now just 3 keys on his key ring,not a jailors bunch.
Give it a try ,its a common issue on older cars ,my sons mk2 golf did same years ago,cutting out intermitantly under braking as his key bunch swung merrily :)
Hope this may help
G


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Random stuttering/cutting on way to work this morning

Post by Diyhell » Mon Oct 15, 2018 12:32 pm

Both good calls - any other thoughts?


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Random stuttering/cutting on way to work this morning

Post by peter freeman » Mon Oct 15, 2018 12:48 pm

I think you have to find out if its electrical or fuel as a start - not easy if only happens on the move but the rev counter may be a guide as it will fall to zero pretty quickly if the spark dies whereas with a fuel problem it may well still indicate for a short while



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Random stuttering/cutting on way to work this morning

Post by Rev Light » Mon Oct 15, 2018 12:50 pm

What is you rev counter doing? If it is dropping to zero intermittently, it points to ignition circuit....all of it

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Random stuttering/cutting on way to work this morning

Post by Rev Light » Mon Oct 15, 2018 12:51 pm

Doh! Peter got there first


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Random stuttering/cutting on way to work this morning

Post by Diyhell » Mon Oct 15, 2018 2:41 pm

Ah, good point (joke somewhere there) about the rev counter. Which isn't connected up...! Will temporarily wire it in.


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Random stuttering/cutting on way to work this morning

Post by Diyhell » Mon Oct 15, 2018 7:11 pm

Strangely all week on the return home. Either it was damp, but seems strange as it had an hour's drive to dry out, or my wiggle of wires sorted out.

On a random note, this morning the voltmeter was only showing charge around 12-13v. This evening it showed 14ish. Both with lights off and no other drain. Hmmm.


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Random stuttering/cutting on way to work this morning

Post by AJL Electronics » Mon Oct 15, 2018 8:09 pm

It says ignition switch to me.


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