Oh man. If this isn't a language issue I don't know what is. Why don't you confuse him some more Mikael?
NO ONE ever said DRILL THEM OUT OR CHANGE THEM. I said that the channels beneath the bleeds OFTEN will get debris in them and need to be cleaned out. The two that are the biggest offenders I see are the 1848 and the 1850, simply because the bleeds and passages are the smallest in the Holley carb line.
The smallest debris will clog it.
You need to get into them and the simplest way is to use a numbered drill bit of the appropriate size of the orafice in the bleed.
Probably something in the #70 to #65 size.
The fuel transfer slot in the throttle body is simpler if removing the throttle body.
You might be able to not disassemble it and use a dental pick but that could definitely damage the precision of the slot.
IF that carb WAS RUNNING PERFECTLY FINE and this just suddenly occurred, there is NO WAY IN HEAVEN AND HELL that the adjustment screws turned themselves. Next you well be telling us that it was Hamlets ghost on the marshes in Denmark. Simply put. No way.
Gee-ze!
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.