mystery??
29 posts
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hi guys.... help needed...
posting here 'coz I suspect fuel supply issue.....
car started on the button after sitting for a week or so.......
went for a drive ...25 mile blast along dual carriageway....didn't miss a beat.
at the other end, had to poodle around some side streets with those infernal sleeping policemen/speed humps, and started hesitating/misfiring.
at some traffic lights [why is it always traffic lights?] cut out completely and wouldn't .restart.
after five minutes, gave up and pushed it round the corner, and continued trying....no sign of life.......
removed plugs, no. 3 slightly black but others ok - not wet.
primed the fuel pump with the rubber bulb widget, opened fuel filler cap, but after another 15 mins of cranking without a single fire, admitted defeat and since I wanted to get home to watch f1 highlights, called breakdown services [autoaid - very good service - highly recommended - inexpensive]
tow-truck booked, decided to give it one more try --- and vroom! fired up immediately, ticked over nicely as if nothing had happened.... ..
cancelled tow truck and blasted home along dual carriageway - didn't miss a beat!
symptoms almost like something over-heating, but temp guage never above 75 [ewp fitted]
this has sometimes happened before e.g. when stopped after filling up with fuel, but not to this extent i.e. maybe 3-4 mins before re-starting......
any ideas? similar experiences?
fred
posting here 'coz I suspect fuel supply issue.....
car started on the button after sitting for a week or so.......
went for a drive ...25 mile blast along dual carriageway....didn't miss a beat.
at the other end, had to poodle around some side streets with those infernal sleeping policemen/speed humps, and started hesitating/misfiring.
at some traffic lights [why is it always traffic lights?] cut out completely and wouldn't .restart.
after five minutes, gave up and pushed it round the corner, and continued trying....no sign of life.......
removed plugs, no. 3 slightly black but others ok - not wet.
primed the fuel pump with the rubber bulb widget, opened fuel filler cap, but after another 15 mins of cranking without a single fire, admitted defeat and since I wanted to get home to watch f1 highlights, called breakdown services [autoaid - very good service - highly recommended - inexpensive]
tow-truck booked, decided to give it one more try --- and vroom! fired up immediately, ticked over nicely as if nothing had happened.... ..
cancelled tow truck and blasted home along dual carriageway - didn't miss a beat!
symptoms almost like something over-heating, but temp guage never above 75 [ewp fitted]
this has sometimes happened before e.g. when stopped after filling up with fuel, but not to this extent i.e. maybe 3-4 mins before re-starting......
any ideas? similar experiences?
fred
'Never give up!....unless it's hopeless.....'
1970 S4 dhc big valve
1973 Ginetta G15
1967 Ginetta G4 [sadly now sold]
1959 lotus elite type 14
1970 S4 dhc big valve
1973 Ginetta G15
1967 Ginetta G4 [sadly now sold]
1959 lotus elite type 14
- Elanconvert
- Third Gear
- Posts: 344
- Joined: 26 Jul 2013
Fred, My money is on an electrical issue - maybe coil or condenser?
Martin
Martin
Time flies like an arrow; fruit flies like a banana.
72 Europa Special, 72 Sprint, 72 Plus 2
72 Europa Special, 72 Sprint, 72 Plus 2
- martinbrowning
- Third Gear
- Posts: 260
- Joined: 07 Jun 2007
Hi
Electrics ! especially if you have electronic ignition.
Electrics ! especially if you have electronic ignition.
John
+2s130 1971
+2s130 1971
-
Hawksfield - Fourth Gear
- Posts: 603
- Joined: 14 Jul 2004
Bit hard to diagnose a intermittent fault but you can inspect things like the coil (make sure it's not leaking and it's in the right ohm range)
You haven't said if you have an Electric Ignition? because many moons ago i had a Luminition set up on a Mini that did some thing similar when the control module when south (had a dry joint inside it so would start and stop if you tapped it)
You haven't said if you have an Electric Ignition? because many moons ago i had a Luminition set up on a Mini that did some thing similar when the control module when south (had a dry joint inside it so would start and stop if you tapped it)
Chris
-
Grizzly - Coveted Fifth Gear
- Posts: 1862
- Joined: 13 Jun 2010
I had the same problem after an engine rebuild. Tried almost everything and nothing helped. Finally read about the red rotors on this forum. Mine had a black rotor and changed to a red one and the problem disappeared.
Bob
Bob
Bob Bulfin
1969 Elan S4 DHC
Mobile, AL USA
1969 Elan S4 DHC
Mobile, AL USA
- bulfin
- Second Gear
- Posts: 93
- Joined: 23 May 2012
I'd stick the timing light in the car go for a drive. If it happens again connect the timing light to see if the ignition system is working.
If it's fuel I'd consider temporarily fitting fuel pressure gauge so you can see if it's low fuel pressure/flow.
If it's fuel I'd consider temporarily fitting fuel pressure gauge so you can see if it's low fuel pressure/flow.
'73 +2 130/5 RHD, now on the road and very slowly rolling though a "restoration"
- mbell
- Coveted Fifth Gear
- Posts: 2643
- Joined: 07 Jun 2013
Most folks are pointing to ignition and I agree.
Talk to this guy and get a set of points, condenser, coil and distributor cap from him. They are the best, and have solved similar problems I've had.
Probably worth putting new HT leads and plugs / caps whilst you're at it!#
Also make sure that you coil is earthed properly, and the engine earths are good.
http://www.distributordoctor.com/
Mark
Talk to this guy and get a set of points, condenser, coil and distributor cap from him. They are the best, and have solved similar problems I've had.
Probably worth putting new HT leads and plugs / caps whilst you're at it!#
Also make sure that you coil is earthed properly, and the engine earths are good.
http://www.distributordoctor.com/
Mark
-
Elanintheforest - Coveted Fifth Gear
- Posts: 2496
- Joined: 04 Oct 2005
hi guys.....many thanks for all your replies.......
ignition was my first thought [ I always say '95% of fuel problems are electrical], but because it ran superbly afterr the incident, I thought fuel......also plugs expected to be wet if no spark........
anyway, PO fitted 'Aldon electronic ignition'......checking his notes, he replaced plugs and leads, but not the coil, so will try a new one......any recommendations?
thanks!!
fred
ignition was my first thought [ I always say '95% of fuel problems are electrical], but because it ran superbly afterr the incident, I thought fuel......also plugs expected to be wet if no spark........
anyway, PO fitted 'Aldon electronic ignition'......checking his notes, he replaced plugs and leads, but not the coil, so will try a new one......any recommendations?
thanks!!
fred
'Never give up!....unless it's hopeless.....'
1970 S4 dhc big valve
1973 Ginetta G15
1967 Ginetta G4 [sadly now sold]
1959 lotus elite type 14
1970 S4 dhc big valve
1973 Ginetta G15
1967 Ginetta G4 [sadly now sold]
1959 lotus elite type 14
- Elanconvert
- Third Gear
- Posts: 344
- Joined: 26 Jul 2013
deleted duplicate post
'Never give up!....unless it's hopeless.....'
1970 S4 dhc big valve
1973 Ginetta G15
1967 Ginetta G4 [sadly now sold]
1959 lotus elite type 14
1970 S4 dhc big valve
1973 Ginetta G15
1967 Ginetta G4 [sadly now sold]
1959 lotus elite type 14
- Elanconvert
- Third Gear
- Posts: 344
- Joined: 26 Jul 2013
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