Proper fumin’


After 3 or 4 days faffing about with an Intermittently faulty HT coil I finally lashed out Au$ 92+taxes and postage for a new one.
Later on I was looking for something else and I found an old one of a totally different type, so just to pass the time I stuck it with some jury rigged wiring
Zroooom - started first turn

Proper fuming me
 
After 3 or 4 days faffing about with an Intermittently faulty HT coil I finally lashed out Au$ 92+taxes and postage for a new one.
Later on I was looking for something else and I found an old one of a totally different type, so just to pass the time I stuck it with some jury rigged wiring
Zroooom - started first turn

Proper fuming me
Same fault is back again this morning, not so much fumin at the cost now, more wondering will it fix it when it arrives?...and if not how much will it cost me to get a proper auto sparky, eg somebody who actually knows wtf he's doing...if such a thing even exists nowadays - if they can't plug a laptop into most dont have a 'kin clue.
 
Same fault is back again this morning, not so much fumin at the cost now, more wondering will it fix it when it arrives?...and if not how much will it cost me to get a proper auto sparky, eg somebody who actually knows wtf he's doing...if such a thing even exists nowadays - if they can't plug a laptop into most dont have a 'kin clue.
Hope it's not your ECU,,,,,
 

Same fault is back again this morning, not so much fumin at the cost now, more wondering will it fix it when it arrives?...and if not how much will it cost me to get a proper auto sparky, eg somebody who actually knows wtf he's doing...if such a thing even exists nowadays - if they can't plug a laptop into most dont have a 'kin clue.
Ask chris.
 
Hope it's not your ECU,,,,,
You trying to cheer me up?
@chrismpw
tbh, it didn't 'feel' like an ecu thing.
I'd had it running for 5, 6 mins to...
a) test the newly installed cooling system for leaks
b) see the temp gauge moving as the thermostat cuts in and out.
The gauge was just coming up to 90c and it just cut out,
Checked fuel OK
I know compression was OK
Chased the lack of spark back to the coil

You have to bear in mind this is a 1981 British Leyland ( 😱😭🤮 ) prototype fuel injection system. It's a transition thing, it's still a mixture of very early - read simple - electronics and mechanical components

Airflow meter
a01ea5d4-f630-4a44-935e-8b68b3f73df6-1_all_9378.webp

Fuel delivery control, aka, Throttle Potentiometer - think ; volume knob on an old style radio :lol:
a01ea5d4-f630-4a44-935e-8b68b3f73df6-1_all_9379.webp

Fancy electronics it ain't.

Its been in a shed for 15yrs and this was the first time this has run since.
There are some diodes, resistors, condensers, etc doted around, could be the run up to full heat has fried one, or a wire has shorted out.
Baby steps
Keeps me busy and out of the wife's way which is the main point.
Anything more than 2 wires monkey see monkey do is beyond me - but I'm very slowly learning.
 

You trying to cheer me up?
@chrismpw
tbh, it didn't 'feel' like an ecu thing.
I'd had it running for 5, 6 mins to...
a) test the newly installed cooling system for leaks
b) see the temp gauge moving as the thermostat cuts in and out.
The gauge was just coming up to 90c and it just cut out,
Checked fuel OK
I know compression was OK
Chased the lack of spark back to the coil

You have to bear in mind this is a 1981 British Leyland ( 😱😭🤮 ) prototype fuel injection system. It's a transition thing, it's still a mixture of very early - read simple - electronics and mechanical components

Airflow meter
View attachment 300938

Fuel delivery control, aka, Throttle Potentiometer - think ; volume knob on an old style radio :lol:
View attachment 300939

Fancy electronics it ain't.

Its been in a shed for 15yrs and this was the first time this has run since.
There are some diodes, resistors, condensers, etc doted around, could be the run up to full heat has fried one, or a wire has shorted out.
Baby steps
Keeps me busy and out of the wife's way which is the main point.
Anything more than 2 wires monkey see monkey do is beyond me - but I'm very slowly learning.
If it's been stood a long while ... how sure are you its not fuel / rust / water in the tank (OK unlikely in Aus, but ya gotta wonder.

It could be a component getting hot in use - a thermal camera would be useful if you can get to see the electronics board.

Could be a mouse making a nest in your air filter and getting its arse sucked into the inlet.
 

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