Dax Rush V8 Help Appreciated

[Banjo Man]

Hi Guys

I'm wondering if anybody could perhaps help with a problem with my Dax Rush V8 which is peeving me. Greatly. It has a Rover V8 with Mallory electronic ignition. The coil is brand new. It has an edelbrock 4 barrel carb and a Malpassi fuel filter (brand new) and electric fuel pumps which is working well.

The car starts very well first time. No blips or odd noises and runs perfectly for 20 mins in all gears, fast and slow in all tempretures. Then after about 20 mins of running it just peters out, normally at a junction, but it can easily just peter out at 60mph. It wont bump start again if I try that. The carb is full of fuel and jets working. When I try and re-start it it just turns over and over with not much sign of anything in the way of life.

Can anybody suggest anything that might be causing this problem? Any help or pointers would be much appreciated. It's not fuel evaporation. The rotar arm looks in good nick as does the inside of the distributor cap. After that its all very electrical and beyond me. I've just pushed the car a mile and I'm knackered and in need of any assistance you can give. If I try and start the car in an hour or two it will start, easily. You can sense my frustration.

Thank you for any assistance

Andy

[Banjo Man]

Thanks for getting back to me. The car did konk out today and it is very chilly but it does the same on warmer days too. I have had a look down the barrels of each carb and there is fuel to be seen. A mystery.

[Banjo Man]

To be honest I haven’t checked but it doesn’t run long enough really, but I will
Check if I can get it going tomorrow. Thanks very much for the assistance.

[Banjo Man]

Many thanks for all of the advice, it's surely is appreciated.

Steve - As the car was running so well when it did run I thought the ignition system was probably okay, however it will not re-start which is actually a good thing as at elast there is something to hunt down, rather than an intermittent fault (total nightmare) - well it turns out there is no spark in its current state of not starting. Switched over the coil HT lead for a new one and no difference. Ballast resistor is about right at 1.5 oms. Sort of leaves the Mallory distributor. There just isn't anything left to check really as its all quite basic.

I don't think its over-fueling as there is no smell when I switch off the engine (when it did run).

So, that's where I am.

Thanks again guys for the hints and tips.

[Banjo Man]

Thanks again for the support. I'm pretty sure its ignition related. My distributor is a Mallory Type 47 breaker-less type (electronic ignition), so other than changing the rotar arm and cap there isn't too much more i can do with my slightly limited knowledge. I have ordered new ones just in case.

The replies re the Fiat and Kawasaki sound very familiar.Thanks, usefulto know.

I can adjust the amount of fuel that gets to the carb as I have a Malpassi fuel filter (currently set at about 3 psi on the gauge) - this unit has also been over-hauled. I think 3 psi is about right for a Rover V8, but if its not please do let me know. Plenty of fuel gets to the carbs.

Thanks again everybody, really appreciated.