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03/01/2006 17:54:15   Geoffrey Wass   The Weber 34ICH has been fitted for some years. It could be difficult to re-start from working temperature if switched off for more than 5 minutes but less than an hour.
Over recent months things have deteriorated seriously producing these scenarios:-
1. After some time in a traffic jam it may drive off OK but then surge and cut after about a quarter of a mile. If I fail to keep it going, it will then be up to an hour before it can be re-started - even using full throttle etc.
2. If driven at 50-70 mph for a while and then cruised at 30 mph for a mile or two, the above same problem may occur after accelarating away.

These problems may occur any day but are worse in hot weather. I do have two thick insulating gaskets between carb and inlet manifold. Fuel pump and filter and accelerator pump have been checked professionally. Getting desperate !  
03/01/2006 17:56:30   Geoffrey Wass   The Weber 34ICH has been fitted for some years. It could be difficult to re-start from working temperature if switched off for more than 5 minutes but less than an hour.
Over recent months things have deteriorated seriously producing these scenarios:-
1. After some time in a traffic jam it may drive off OK but then surge and cut after about a quarter of a mile. If I fail to keep it going, it will then be up to an hour before it can be re-started - even using full throttle etc.
2. If driven at 50-70 mph for a while and then cruised at 30 mph for a mile or two, the above same problem may occur after accelarating away.

These problems may occur any day but are worse in hot weather. I do have two thick insulating gaskets between carb and inlet manifold. Fuel pump and filter and accelerator pump have been checked professionally. Getting desperate !  
04/01/2006 12:43:05   Richard   First I would check the timing and ignition system. If you have a problem with the coil or coil lead, you can get this problem.
The weber is simple to take apart and clean. I can only see the problem being foat/valve related as there is not much else in there! Undo the main screws that hold that top on (the pump has a spring behind it, dont take this off without being ready for it flying out).  
04/01/2006 13:08:14   Richard   Forget what I said about the pump it isnt.  
04/01/2006 13:40:34   Senor Burt   Condensor? Loose wire in the ignition system? Float sounds reasonable if it is the carb.

Take the top off the carb when it won't start and see if there's any fuel in there. Although, if you operate the linkage with the air filter off, it should pump fuel into the carb barrel via the accelerator pump if there's any in the float chamber.  
04/01/2006 15:54:42   gerald   Hallo Geoffrey !

To be hounest I donīt think that the carb is really the reason for your problems . I do have almost the same troubles and mine has the original FoMoCo ...
Iīve tried to find the reason for several years now . Some of the things I tried made the symptoms a bit less hard - bur I could not solve them until now . Believe me I AM desperate .
So please if you should find the reason let me know .

best regards
Gerald
 


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