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another carb question

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miranda

miranda

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A couple of weeks ago we had some problems with our car dumping fuel through the air vent, we figuered it was the needle that was sticking. After we replaced the needle that was stuck indeed, we put in new springs and filters. We did this in both carbs. Today the car went back to its old habbits and started leaking again. We found the little filters to be clean, but the new needle(with the little ball) stuck. Is this something that happens often? I don't like the idea of fuel near the hot exhaust.

thanks sjoerd and miranda
 
HI Miranda, I assume you are talking about a Crosse Jet {"with the little ball"}. There may not be any dirt in the carb filters but you should look inside the fuel bowl.There is fine silt that can pass the carb filters and cause the Jets to stick. I would suggest geting a filter and putting it in the fuel line just ahead of the carbs.I Use a Russel type sintered bronze filter from most hot rod or discount stores.I have been runing Crosse Jets for about 15 years and never had one stick.===Fwiw---Keoke
 
Keoke,

Once again thanks for the information. We will install a filter one of these days

sjoerd and miranda
 
Miranda

Like Keoke I've used Grose jet float needles for years without any problem. But recently I've had some problems, especially in the spring after cars have sat for some time. I think the root cause may be the fuel refining formulation. On a MG-TD the large balls were frozen to the seat - no fuel flow. I took the jets out and utilized a small drill bit to un-stick the ball from the seat. Replaced the jets - flooding. I took the jets out again this time I soaked them in WD-40 then rolled the balls around until they felt clean, replaced them and everything was OK. Fuel is petrolum based and therefore contains some percentage sulphur, and there is nothing I know of that will disolve sulphur. I have since started to utilize fuel stabalizer without reoccurrance.

Regards, Bob
 
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