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Re: Won't idle..... [Re: TBM] #553724
14/01/19 07:55 AM
14/01/19 07:55 AM
Joined: Sep 2011
Posts: 11,584
Mandello del Lario, Lake Como,...
Gambalunga Offline
Member of the Inner Circle
Gambalunga  Offline
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Joined: Sep 2011
Posts: 11,584
Mandello del Lario, Lake Como,...
The dip beam problem could be the switch on the steering column stalk. Some people fit relays for the headlights to reduce the current running through the switch and thereby protecting it.

Have you checked the fuel filters? It may be that you have had some dirty or water contaminated fuel at some time.

I'm not familiar with the Weber but I would have thought there should be a small filter on the fuel input plus a filter in the fuel line. If there is a drain plug on the fuel float bowl you could try draining it in case there is water or sediment in the float bowl.

Last edited by Gambalunga; 14/01/19 08:03 AM.

Peter

[Linked Image]
Re: Won't idle..... [Re: Gambalunga] #553727
14/01/19 08:05 AM
14/01/19 08:05 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
The dip beam problem could be the switch on the steering column stalk. Some people fit relays for the headlights to reduce the current running through the switch and thereby protecting it.


I upgraded to Halogens a couple of weeks ago, so that may well be the case - possibly burnt the switch out. I'll check tonight. I have a spare relay so will pop that in and bypass the switch pro tem.

Originally Posted By Gambalunga
Have you checked the fuel filters? It may be that you have had some dirty or water contaminated fuel at some time.


It was all done by Allon White just before christmas - new filter and carb clean, but if refilling the tank is stirring up debris then it'll block up again. I'll fit a new filter and clean the gauze on the fuel pump. If it was a bike, I'd whip the tank off and give it a flush and a treatment!

At least I can now discount the 'uniformity' of the problem - that was probably just coincidence!


1972 4/4 4 seater
Too many ratty motorbikes
Re: Won't idle..... [Re: TBM] #553738
14/01/19 09:19 AM
14/01/19 09:19 AM
Joined: Jul 2007
Posts: 13,680
Suffolk
John V6 Offline
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John V6  Offline
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Joined: Jul 2007
Posts: 13,680
Suffolk
Try cleaning out the idle jet.


JohnV6
2006 Indigo Blue Roadster S1
Re: Won't idle..... [Re: John V6] #553739
14/01/19 09:23 AM
14/01/19 09:23 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
Try cleaning out the idle jet.


Just 'googled' and they look are fairly accessible and easy to remove, so will have a crack at that too.


1972 4/4 4 seater
Too many ratty motorbikes
Re: Won't idle..... [Re: TBM] #553743
14/01/19 09:37 AM
14/01/19 09:37 AM
Joined: Nov 2015
Posts: 1,099
Yorkshire
CooperMan Offline
Has a lot to Say!
CooperMan  Offline
Has a lot to Say!

Joined: Nov 2015
Posts: 1,099
Yorkshire
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.



TBM, looking at the age of your Mog, I would suggest you replace your Condenser as they are known to fail erratically when hot (assuming you're still on points & condenser ignition)


Jon M
Re: Won't idle..... [Re: CooperMan] #553744
14/01/19 09:41 AM
14/01/19 09:41 AM
Joined: Jul 2007
Posts: 22,486
Cheltenham, Glos. UK
Graham, G4FUJ Offline
Salty Sea Dog
Graham, G4FUJ  Offline
Salty Sea Dog
Member of the Inner Circle

Joined: Jul 2007
Posts: 22,486
Cheltenham, Glos. UK
Beat me to it Jon! smile


Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'07 MINI Cooper
Re: Won't idle..... [Re: CooperMan] #553746
14/01/19 09:49 AM
14/01/19 09:49 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 CooperMan
TBM, looking at the age of your Mog, I would suggest you replace your Condenser as they are known to fail erratically when hot (assuming you're still on points & condenser ignition)


Good call.

I'll get that sorted as well. Ultimately will change to an electronic but that'll in a couple of 'pay days'!


1972 4/4 4 seater
Too many ratty motorbikes
Re: Won't idle..... [Re: TBM] #553753
14/01/19 11:27 AM
14/01/19 11:27 AM
Joined: Sep 2011
Posts: 11,584
Mandello del Lario, Lake Como,...
Gambalunga Offline
Member of the Inner Circle
Gambalunga  Offline
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Joined: Sep 2011
Posts: 11,584
Mandello del Lario, Lake Como,...
Yes. I wondered about an electrical problem but discounted it because it starts again straight away. So long that I haven't had to worry about points ignition that I forgot about the condenser. They cost so little that it is worthwhile changing it if only to eliminate that as the source of the problem.


Peter

[Linked Image]
Re: Won't idle..... [Re: Gambalunga] #553754
14/01/19 11:37 AM
14/01/19 11:37 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
Yes. I wondered about an electrical problem but discounted it because it starts again straight away. So long that I haven't had to worry about points ignition that I forgot about the condenser. They cost so little that it is worthwhile changing it if only to eliminate that as the source of the problem.


That's what's been frustrating me - if she struggled to start, then it would be easier to diagnose, but she springs back into life virtually instantly - on occasions I've just dropped the clutch and bumped her back into life very easily.

My plan so far:

Change Fuel Filter
Clean fuel pump gauze
Remove and clean idle jets.
Replace Condenser (or if I can sneak it past the Mrs, buy an electronic ignition and new coil smile )


1972 4/4 4 seater
Too many ratty motorbikes
Re: Won't idle..... [Re: TBM] #553771
14/01/19 01:06 PM
14/01/19 01:06 PM
Joined: Aug 2010
Posts: 2,430
Costock, South Nottinghamshire...
Paul F Offline
Talk Morgan Expert
Paul F  Offline
Talk Morgan Expert

Joined: Aug 2010
Posts: 2,430
Costock, South Nottinghamshire...
That looks like a good solid plan.


Paul
Costock, UK
2014 4/4 Rolls Royce Garnet Red
Disco 4
Teddy - 17h1 Irish Draught cross
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