Quote:
Originally Posted by Clan
all volvos with stromberg / pierberg variants from 1967 have had the emission versions with biased needles which are spring loaded to rub on the jet , this gives better atomisation for emissions apparantly so they will wear, especialy with inleaded fuel or LPG ..
|
I'm always wary of statements like "all Volvos have ..." because sure enough someone comes along and says, well I have a ... and it doesn't!
Well I have a Stromberg from a c 1972 Volvo 240 and it doesn't have spring loaded biased needle, nor any kind of external needle adjustment. The only way to adjust the needle is to take the dashpot out, release the grubscrew holding the needle, and then push the needle in or out by guesswork.
The jet can be loosened from underneath, and then moved so that the needle centres but never touches the jet.
But of course you never know what previous owners have fitted, perhaps even a similar carb from a totally different car.