Post by 1800heap on Jan 27, 2018 5:26:41 GMT
Hi Paddy
I was thinking about the problem I had with my crab, after reading your hot weather problems. I remember I had a similar problem with my crab after what was really bodging the fitting of twin carbs to the car.
I didn't have any of the linkages or the proper spacers you see. I only had the extractors and the inlet manifold. I ended up cutting and bending a piece of aluminum as a heat shield. I put it in like a gasket sandwiched in between the manifold and carbs.
It worked but I was having trouble summer time in the UK so at relatively cool temperatures compaired to you! It started but ran really poorly for a little while. Anyway the point I am trying to get to is some time later I discovered that one carb had a partial blockage from the float chamber to the jet. You know the little tube that connects.
I think that I had an issue with the heat soak but only because of the partial blockage. No problem when cool but with heat the fuel boiled out of the tube and had a job getting back in.
So you have a number of factors that may be against you and the wet rag idea might be the go to try to see what is happening. It is likely the only safe way to check as well, when the car and day is that hot!
I hope this goes without saying but I will say it anyway. I have to work in the occasional petrol station and because of that I had to do a safety course. During the course they showed us several videos showing petrol fires at servos! VERY VERY nasty and very quick to become an inferno! Having seen this and done some silling things myself I have to say don't touch anything likely to spew fuel while everthing is hot, because large amounts of vapor will be produced from petrol on a hot manifold and if it finds an ignition scource well!!
Nick
I was thinking about the problem I had with my crab, after reading your hot weather problems. I remember I had a similar problem with my crab after what was really bodging the fitting of twin carbs to the car.
I didn't have any of the linkages or the proper spacers you see. I only had the extractors and the inlet manifold. I ended up cutting and bending a piece of aluminum as a heat shield. I put it in like a gasket sandwiched in between the manifold and carbs.
It worked but I was having trouble summer time in the UK so at relatively cool temperatures compaired to you! It started but ran really poorly for a little while. Anyway the point I am trying to get to is some time later I discovered that one carb had a partial blockage from the float chamber to the jet. You know the little tube that connects.
I think that I had an issue with the heat soak but only because of the partial blockage. No problem when cool but with heat the fuel boiled out of the tube and had a job getting back in.
So you have a number of factors that may be against you and the wet rag idea might be the go to try to see what is happening. It is likely the only safe way to check as well, when the car and day is that hot!
I hope this goes without saying but I will say it anyway. I have to work in the occasional petrol station and because of that I had to do a safety course. During the course they showed us several videos showing petrol fires at servos! VERY VERY nasty and very quick to become an inferno! Having seen this and done some silling things myself I have to say don't touch anything likely to spew fuel while everthing is hot, because large amounts of vapor will be produced from petrol on a hot manifold and if it finds an ignition scource well!!
Nick
