discool said:
What makes U think it’s fuel, early posts just suggest it’s a maybe, could be or seems.
So are u sure your issue is fuel related, u state u wait 5 minutes and “ then up and going again” so what is the significance of that delay, what’s happening during that period? I’m wondering as so far you done done everything, there’s nothing left, or is there.

Do you have electronic ignition fitted as that can play up and cut the engine, but after a short wait the engine will start like nothing has happened.
Click to expand...
I wonder if even the new set up is being affected by the heat I could try fitting a remote amp they supply as my V8 is 10.5cr so runs hotter than the low cr although the cooling system runs norm the oil seems to run warm. What throws me is it still had the issue with the old dizzy setup
 
The only other thing I can think is that as engine heats up you're getting an air leak at the inlet manifold gasket due to expansion it's a long shot I know but youv'e systematically done everything else...
 
Shippers said:
Can you put a piece of clear pipe in return to tank that's what I did and it shows air in it when it has stood for a while...weeks not days...this would show fuel starvation...
Click to expand...
Hi
Do you mean a clear pipe to show the return fuel from the carbs?
 
Ok need to start throwing another idea in. Along the lines of @Shippers
How hot does it get under your bonnet?
Does it quit if it’s sat with the bonnet up and you get it warmed up? Or just if you try and drive it with some loading(loud pedal)?

J
 
Yes...when you start engine if through fuel starvation the carbs are empty air will bubble down clear pipe but to be honest I don't think that's your problem but will rule out fuel problem...
 
Shippers said:
The only other thing I can think is that as engine heats up you're getting an air leak at the inlet manifold gasket due to expansion it's a long shot I know but youv'e systematically done everything else...
Click to expand...
I had the manifold off to change over a noisy follower (crappy cheap
Rimmerbro’s) of course all went back down at correct torque settings I can of course recheck
 
Muddy goose said:
I had the manifold off to change over a noisy follower (crappy cheap
Rimmerbro’s) of course all went back down at correct torque settings I can of course recheck
Click to expand...

Did you use a smear of sealant on gasket and which gasket the one with the foam backing?....
 
marjon said:
Ok need to start throwing another idea in. Along the lines of @Shippers
How hot does it get under your bonnet?
Does it quit if it’s sat with the bonnet up and you get it warmed up? Or just if you try and drive it with some loading(loud pedal)?

J
Click to expand...
Hi Yes it gets very warm underneath. It’s ok just running with bonnet up or down it’s when you push on the loud pedal it shows up straight away if you kept it at 1500-2000 rpm with very light pedal it will go for longer
 
Muddy goose said:
Hi Yes it gets very warm underneath. It’s ok just running with bonnet up or down it’s when you push on the loud pedal it shows up straight away if you kept it at 1500-2000 rpm with very light pedal it will go for longer
Click to expand...
Driving along that is not parked up you can rev as much as you like then.
 
Muddy goose said:
Hi Yes it gets very warm underneath. It’s ok just running with bonnet up or down it’s when you push on the loud pedal it shows up straight away if you kept it at 1500-2000 rpm with very light pedal it will go for longer
Click to expand...
Shall I take a temp reading?
 
I must add originally last summer when I was running her in, of course very light on pedal and no more then 2000rpm at around 250miles thats when on 10-25mile journey it would cut out sit around for ten mins and back on with the journey, hence the thought of under bonnet heat and fuel vaporizing to begin with. The journeys have just got shorter and shorter now within a 5 min drive When running warm or cold.
 
After it cuts out do you switch off ignition let it sit then how long before it will re-start? and does it crank for a while before it fires?...
 
Muddy goose said:
I’ve tried both ways it will always start but the longer I wait the further it will go
Click to expand...

Yes but does it crank without firing or starts first turn...I would expect if fuel starvation it would crank for a while before firing...I also had a problem with mine there was a leaf in the tank which got sucked up to the supply pipe cutting of supply then it would sink down on switch off only to be sucked up again baffled me for ages till I stripped it all down...lol
 
Check your rotor arm, does the brass strip on top move at all? If so replace it. Check your dizzy cap for cracks as well, just because they are new doesn't mean they are serviceable.
 
Shippers said:
Yes but does it crank without firing or starts first turn...I would expect if fuel starvation it would crank for a while before firing...I also had a problem with mine there was a leaf in the tank which got sucked up to the supply pipe cutting of supply then it would sink down on switch off only to be sucked up again baffled me for ages till I stripped it all down...lol
Click to expand...
I will try in the morning
 
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