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#553890 - 15/01/19 07:15 AM Re: Won't idle..... [Re: TBM]
TBM Offline
Learner Plates Off!

Registered: 06/11/18
Posts: 430
Loc: Northants, UK
Originally Posted By TBM
First of all, a big thank you for all the help and advice - very much appreciated.

Frustratingly, she started perfectly last night after I'd got the headlights working, idling nicely and then this morning she did the 25 miles commute to work without issue......
_________________________
1972 4/4 4 seater
Too many ratty motorbikes

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#553906 - 15/01/19 08:48 AM Re: Won't idle..... [Re: TBM]
John V6 Offline

Member of the Inner Circle

Registered: 21/07/07
Posts: 13026
Loc: Suffolk
You have obviously scared her into action.
_________________________
JohnV6
2006 Indigo Blue Roadster S1

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#553908 - 15/01/19 09:02 AM Re: Won't idle..... [Re: TBM]
CooperMan Online   content

Talk Morgan Regular

Registered: 19/11/15
Posts: 834
Loc: Yorkshire
TBM, are your fuel hoses the later Ethanol resistant ones ? if you're still on basic rubber ones they will be gradually dissolving from the inside

I may be worth fitting a cheap clear plastic fuel filter in the line (near the carb) and see what it collects
_________________________
Jon M

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#553909 - 15/01/19 09:09 AM Re: Won't idle..... [Re: CooperMan]
TBM Offline
Learner Plates Off!

Registered: 06/11/18
Posts: 430
Loc: Northants, UK
Originally Posted By CooperMan
TBM, are your fuel hoses the later Ethanol resistant ones ? if you're still on basic rubber ones they will be gradually dissolving from the inside

I may be worth fitting a cheap clear plastic fuel filter in the line (near the carb) and see what it collects


They are new - fitted by Allon White in the last couple of months.

There's a fuel filter just before the fuel pump, and there's also the gauze in the pump.

I'll see if I can find a clear one - most of them are the white plastic. I might get one of the clear glass 'cleanable' ones.
_________________________
1972 4/4 4 seater
Too many ratty motorbikes

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#553914 - 15/01/19 09:31 AM Re: Won't idle..... [Re: John V6]
TBM Offline
Learner Plates Off!

Registered: 06/11/18
Posts: 430
Loc: Northants, UK
Originally Posted By John V6
You have obviously scared her into action.


She's very lucky she was expensive, and I've 'calmed' with age. A couple of my bikes have large fist dents in the tank where frustration has got the better of me.......
_________________________
1972 4/4 4 seater
Too many ratty motorbikes

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#553927 - 15/01/19 10:07 AM Re: Won't idle..... [Re: TBM]
tmg513 Offline
Talk Morgan Enthusiast

Registered: 27/08/08
Posts: 1950
Loc: Powick
Originally Posted By TBM
Back to the drawing board.....

Started fine this morning, first 20 miles (mixture of fast road and 30mph stuff) all fine.

Got to MK and third roundabout in she stalled at idle and continued to do so at each one till I got to work (starts immediately after each stall). Removed the fuel cap when I got to work, started fine, but wouldn't idle. She will idle with about 1/3 choke.

Any thoughts? Done about 50 mile so far on this tank full.

Since this wasn't after you'd just filled it, if she'll idle with choke could this point to to a weak mixture? Could a gasket have failed/perished on the carb and caused an air leak?
_________________________
1972 4/4 2 Seater

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#553929 - 15/01/19 10:55 AM Re: Won't idle..... [Re: tmg513]
TBM Offline
Learner Plates Off!

Registered: 06/11/18
Posts: 430
Loc: Northants, UK
Originally Posted By tmg513
Originally Posted By TBM
Back to the drawing board.....

Started fine this morning, first 20 miles (mixture of fast road and 30mph stuff) all fine.

Got to MK and third roundabout in she stalled at idle and continued to do so at each one till I got to work (starts immediately after each stall). Removed the fuel cap when I got to work, started fine, but wouldn't idle. She will idle with about 1/3 choke.

Any thoughts? Done about 50 mile so far on this tank full.

Since this wasn't after you'd just filled it, if she'll idle with choke could this point to to a weak mixture? Could a gasket have failed/perished on the carb and caused an air leak?


She ran fine this morning! Very frustrating.
_________________________
1972 4/4 4 seater
Too many ratty motorbikes

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#553930 - 15/01/19 11:00 AM Re: Won't idle..... [Re: tmg513]
Gambalunga Offline

Member of the Inner Circle

Registered: 03/09/11
Posts: 11137
Loc: Mandello del Lario, Lake Como,...
Does it have vacuum boosted brakes? The problem could be air intake from a poor connection, leaking vacuum line or a leaking diaphragm.
_________________________
Peter


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#553931 - 15/01/19 11:07 AM Re: Won't idle..... [Re: Gambalunga]
TBM Offline
Learner Plates Off!

Registered: 06/11/18
Posts: 430
Loc: Northants, UK
Originally Posted By Gambalunga
Does it have vacuum boosted brakes? The problem could be air intake from a poor connection, leaking vacuum line or a leaking diaphragm.


No, non servo.
_________________________
1972 4/4 4 seater
Too many ratty motorbikes

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#553963 - 15/01/19 03:40 PM Re: Won't idle..... [Re: TBM]
britmog Offline
L - Learner Plates On

Registered: 13/12/17
Posts: 173
Loc: Colorado, USA
How full was the tank for the well behaved 25 mile drive? Hope she remains well behaved for you.
_________________________
Bruce Marshall
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice)
2013 M3W (Olga)

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