roy parmenter
Member
 
Posts: 14
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« on: 10 August, 2020, 08:18:39 AM » |
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Had unfortunate breakdown on M25 driving home from north London yesterday - car going well then just slowed as though it had fuel starvation - still had half tank of fuel - called RAC - pretty useless - all these young guys know is how to plug in a computer!! - not there fault i suppose - ours maybe for driving classics! - however ended up being put on the back of a truck to home - looked over today & car now running well so maybe a case of fuel vaporisation. I do have an electric fuel pump but the line also goes via the mechanical pump to the carb. – what to do? – wrap the hoses &/or place a made up heat shield between hoses & engine or look to buy a fuel pressure regulator! – any assistance greatly appreciated
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sd39
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« Reply #1 on: 10 August, 2020, 02:39:45 PM » |
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Hi
Don't have an immediate suggestion for you, but just wanted to express my commiserations. Never fun to break down. Simon
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1960 Lancia Appia Series 3 Sedan, 1966 Lancia Fulvia coupe, 1980 Suzuki FZ50, Bob Jackson bicycle.
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Dikappa
Megaposter

Posts: 451
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« Reply #2 on: 10 August, 2020, 02:51:36 PM » |
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I would check the tank to see if there is no dirt, and also the aireation (is that a word?) as it could be on a short run you get plenty fuel, but if no air can get into the tank you might have fuel starvation.
Always good to have a clear filter somewhere so it is easy to check if there is fuel coming.
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GG
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Posts: 437
B20 s.2, Appia C10 unrestored
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« Reply #3 on: 10 August, 2020, 03:31:16 PM » |
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Have had similar experience, a few thoughts- - the Appia has no elec pump, just mech'l. Typically runs fine through heat, although one time years ago suffered vapor lock. I wrapped cloth around the fuel pump, doused with water for evaporative cooling, and that worked. - Aurelia has struggled in the past, with elec pump running through mech'l. Turns out it was a coil that just gave up in the heat. Once changed, all good. There is a wee bit of vaporization at times, but the elec pump (and a bit of moving) cures it.
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B20 s.2, Appia C10 unrestored
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simonandjuliet
Permanent resident
 
Posts: 2273
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« Reply #4 on: 10 August, 2020, 05:35:58 PM » |
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I live in a fairly warm part of the world and have no problems with vaporisation with my Appias. However I have recently had a problem with a failing coil on the Fulvia which was worse when it got hot (perfect when cold) so maybe worth a check ??
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S1 Aprilia Cabrio, S2 Aprilia, S2 camioncino, S2 furgoncino, , R4 Sinpar, R4 Rodeo, R60 Tractor,R60 S, Moto Guzzi Ercole, Disco 3, Mini ALL4 JCW, Moto Guzzi Cardellino 63,Fulvia Berlina GT, 2019 Royal Enfield Himalayan
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nistri
Megaposter

Posts: 341
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« Reply #5 on: 11 August, 2020, 02:20:13 PM » |
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An electric fuel pump is useful to overcome the problem but it should be running in parallel to the mechanical one, not in series There has been an unusual epidemic of coil failure in Fulvia in recent times. Coils do suffer from underbonnet heat and vibration. With the current conditions of our roads (and hot weather) perhaps it is not surprising that even a small defect in the primary circuit becomes magnified. Andrea
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Andrea Nistri
Ardea S2 Appia S2 Fulvia GTE Fulvia Sport 1.3 S Fulvia Montecarlo Fulvia Coupe 1.3 S
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will
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« Reply #6 on: 12 August, 2020, 06:34:48 PM » |
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I have an electric pumps fitted in parallel to the mechanical pump on my Appia and the B20 with a switch on the dashboards. It helps when starting the cars when they have been standing. I had a problems recently with the Appia on a hot day when the engine has died I guess fuel vaporisation. Switching the electric pump on has solved the problem. The B20 has problems on hot days as well for some reason the 4th series are particularly bad. The electric pump work well with a fuel return.
I can produce a plan and help with installing this system on an Appia
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Aurelia B20 4th Series Appia 2nd Series Kappa Coupe 3.0 24v V6
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GG
Megaposter

Posts: 437
B20 s.2, Appia C10 unrestored
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« Reply #7 on: 12 August, 2020, 07:42:03 PM » |
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As noted, fuel return makes a huge difference. I think Fulvias had it fitted from s.2 on. Solved all sorts of issues on an Aurelia with a very hot engine.
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B20 s.2, Appia C10 unrestored
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nistri
Megaposter

Posts: 341
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« Reply #8 on: 13 August, 2020, 12:22:22 PM » |
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There is a simple diagram I sent to the Fulvia forum section, please check through Norman's restoration thread, Andrea
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Andrea Nistri
Ardea S2 Appia S2 Fulvia GTE Fulvia Sport 1.3 S Fulvia Montecarlo Fulvia Coupe 1.3 S
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roy parmenter
Member
 
Posts: 14
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« Reply #9 on: 16 August, 2020, 04:28:19 PM » |
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Thanks everyone who responded to my post - having another go at sorting tomorrow!
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