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Re: Won't idle..... [Re: TBM] #553890
15/01/19 07:15 AM
15/01/19 07:15 AM
Joined: Nov 2018
Posts: 529
Northants, UK
TBM Offline OP
Talk Morgan Regular
TBM  Offline OP
Talk Morgan Regular

Joined: Nov 2018
Posts: 529
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
Re: Won't idle..... [Re: TBM] #553906
15/01/19 08:48 AM
15/01/19 08:48 AM
Joined: Jul 2007
Posts: 13,700
Suffolk
John V6 Offline
Member of the Inner Circle
John V6  Offline
Member of the Inner Circle

Joined: Jul 2007
Posts: 13,700
Suffolk
You have obviously scared her into action.


JohnV6
2006 Indigo Blue Roadster S1
Re: Won't idle..... [Re: TBM] #553908
15/01/19 09:02 AM
15/01/19 09:02 AM
Joined: Nov 2015
Posts: 1,118
Yorkshire
CooperMan Offline
Has a lot to Say!
CooperMan  Offline
Has a lot to Say!

Joined: Nov 2015
Posts: 1,118
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
Re: Won't idle..... [Re: CooperMan] #553909
15/01/19 09:09 AM
15/01/19 09:09 AM
Joined: Nov 2018
Posts: 529
Northants, UK
TBM Offline OP
Talk Morgan Regular
TBM  Offline OP
Talk Morgan Regular

Joined: Nov 2018
Posts: 529
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
Re: Won't idle..... [Re: John V6] #553914
15/01/19 09:31 AM
15/01/19 09:31 AM
Joined: Nov 2018
Posts: 529
Northants, UK
TBM Offline OP
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TBM  Offline OP
Talk Morgan Regular

Joined: Nov 2018
Posts: 529
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
Re: Won't idle..... [Re: TBM] #553927
15/01/19 10:07 AM
15/01/19 10:07 AM
Joined: Aug 2008
Posts: 2,056
Powick
tmg513 Offline
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tmg513  Offline
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Joined: Aug 2008
Posts: 2,056
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
Re: Won't idle..... [Re: tmg513] #553929
15/01/19 10:55 AM
15/01/19 10:55 AM
Joined: Nov 2018
Posts: 529
Northants, UK
TBM Offline OP
Talk Morgan Regular
TBM  Offline OP
Talk Morgan Regular

Joined: Nov 2018
Posts: 529
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
Re: Won't idle..... [Re: tmg513] #553930
15/01/19 11:00 AM
15/01/19 11:00 AM
Joined: Sep 2011
Posts: 11,597
Mandello del Lario, Lake Como,...
Gambalunga Offline
Member of the Inner Circle
Gambalunga  Offline
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Joined: Sep 2011
Posts: 11,597
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

[Linked Image]
Re: Won't idle..... [Re: Gambalunga] #553931
15/01/19 11:07 AM
15/01/19 11:07 AM
Joined: Nov 2018
Posts: 529
Northants, UK
TBM Offline OP
Talk Morgan Regular
TBM  Offline OP
Talk Morgan Regular

Joined: Nov 2018
Posts: 529
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
Re: Won't idle..... [Re: TBM] #553963
15/01/19 03:40 PM
15/01/19 03:40 PM
Joined: Dec 2017
Posts: 218
Colorado, USA
B
britmog Offline
L - Learner Plates On
britmog  Offline
L - Learner Plates On
B

Joined: Dec 2017
Posts: 218
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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