Stromberg needles
Posted: Sat Nov 15, 2008 6:49 pm
This is a bit of a continuation from my poor starting investigation thread. Will conclude that when I have smile on my face (problem fixed).
Having stripped my carbs right down I find I have spindle & bush play and also the seals had hardened and cracked.
Such is the volume of work on these that I had look a spare set that had stashed. Having parted these I find them in "like new" condition. Cant believe how good. Make my look like sh*t. Spindle and bushes are sound. Everything is real nice. Only point is that they have the bias adjustable needle that can not be adjusted from the top (outside). Just side screw adjustment by slide removal from carb. Jets are mint and the needle are too. So I thinking I am going to lightly overhaul these (seals and gasket etc).
My original carbs are fitted wih the B2AR needles, top adjustable.
The spare set in good nick are fitted with BIY needles. Having read Miles Wilkins and my webber book (with Strombergs) and found the 13 different dimensions for these two types of needle, I find they are quite close. Miles Wilkins only refers to years of manuacture (and position of balance pipe) not actual spec'. Workshop manual does not even show B2AR. I know that 118Hp SE spec was only uncovered by Miles Wilkins.
I have this 118 HP Super SE spec' with the 40 though head skim and sprint cams (as standard). Off the peg!
If I use the BIY needles will I be ok or loose some performance? Are B2AR required for my spec'?
If so, I dont really fancy doing that conversion business (I have seen on the net) and drilling the slide to fit the B2AR's as if I make a balls I could end up with the "O" ring leaking business from dashpot oil. Maybe I am being a tart!
So can a B2AR be supplied in the non top ajustable form?
I am not swapping air slides on stromberg intruction as I believe the carb, lid and slide are air leak tuned as an assembley.
Can anybody help me here and shed any light on this.
Thanks Mike
Having stripped my carbs right down I find I have spindle & bush play and also the seals had hardened and cracked.
Such is the volume of work on these that I had look a spare set that had stashed. Having parted these I find them in "like new" condition. Cant believe how good. Make my look like sh*t. Spindle and bushes are sound. Everything is real nice. Only point is that they have the bias adjustable needle that can not be adjusted from the top (outside). Just side screw adjustment by slide removal from carb. Jets are mint and the needle are too. So I thinking I am going to lightly overhaul these (seals and gasket etc).
My original carbs are fitted wih the B2AR needles, top adjustable.
The spare set in good nick are fitted with BIY needles. Having read Miles Wilkins and my webber book (with Strombergs) and found the 13 different dimensions for these two types of needle, I find they are quite close. Miles Wilkins only refers to years of manuacture (and position of balance pipe) not actual spec'. Workshop manual does not even show B2AR. I know that 118Hp SE spec was only uncovered by Miles Wilkins.
I have this 118 HP Super SE spec' with the 40 though head skim and sprint cams (as standard). Off the peg!
If I use the BIY needles will I be ok or loose some performance? Are B2AR required for my spec'?
If so, I dont really fancy doing that conversion business (I have seen on the net) and drilling the slide to fit the B2AR's as if I make a balls I could end up with the "O" ring leaking business from dashpot oil. Maybe I am being a tart!
So can a B2AR be supplied in the non top ajustable form?
I am not swapping air slides on stromberg intruction as I believe the carb, lid and slide are air leak tuned as an assembley.
Can anybody help me here and shed any light on this.
Thanks Mike