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Smostuart

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  1. Sounds good advice currently there is no fuel filter so will get one ASAP been on my mind for a while anyway. It will have to be positioned between pump and carb. Pretty certain that this won't solve the issues but will won't do any harm only good. Can anyone see a benefit of replacing the copper pipe between pump and carb with rubber hose as surely this won't get hot and evaporate the fuel any other ideas definitely welcome. I won't stop until this issue is solved lol
  2. Right bit of an update on this issue, I have changed the fuel pump for a brand new one, the first thing I noticed is that the performance of the car had greatly improved I then let the car run up to near hot on the temperature gauge and not once did it cut out, I then took the car out for a drive and I noticed that it was running very lumpy but again it didn't cut out. It was like it still had a slight starvation problem. Also I took the fuel filler cap off and there was no vacuum at all. As far as the coil is concerned it is a brand new uprated coil which has been checked and is putting out the correct v along with electronic ignition which runs perfectly and doesn't miss a beat in normal circumstances unlike the old points system which was on the car. Also I took the old pump apart to see if I could see anything obvious. One thing I noticed is that there was a lot of debris inside the pump which I suppose could acount for the poor performance. Thanks again for all your suggestions. Stuart
  3. This has been a problem that has been going on for a few years now. As it only happens on hot days (which in this country is rare) but it is getting to the point where it needs sorting. It starts off by juddering as if it was running out of fuel then completely cuts out. this only happens when the car gets hot and temperature gauge is up to about 3/4. It doesn't happen when the car is moving as engine is being cooled. It won't start again unless you either let the engine cool completely or suck the petrol through the hose at the carb end. As far as the carb is concerned it is a single carb pretty bog standard for this engine. And yes it is a mechanical pump. Not to sure about heat sheilds pretty certain it hasn't got them but at some point this was never a problem so personally I would think I could rule that one out also what sort of tests can I run on a mechanical pump to check it's working correctly. thanks again for the comments all very useful
  4. On a hot day and usually sitting in traffic my herald 1360 1968 seems to cut out due to no fuel reaching the carb, at the moment it has copper piping from the pump to the carbs but it seems to me that the fuel might be evaporating before it reaches the carb. Any ideas how to sort this problem out? Is it worth replacing the copper pipe with rubber hose or could it be an issue with the pump. Any advise would be great as at the moment it isn't possible to take it on journeys where I might meet traffic. Thanks in advance
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