Volvo RWD 120-130 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 4/2002 120-130 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

SU Needle set screws? Also: SM needles? 120-130

posted by  red92s on  Sun Sep 20 09:41 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Aug 18 13:02 CST 2014
[RELATED]

I've been tinkering with my SU's and pulled them apart this afternoon. In the process I seem to have misplaced one of the needle fixing screws. An M5x1.00 feels like it fits but I'm hesitant to try and snug it up without confirmation it's the correct size and pitch.

Also, the needles are "SM" variety. Should I swap to the KD or DX profile that seems to be much more common? The SM's look like they run much leaner on the top half of the power band. Car is a B18 automatic, all stock internally as far as I know.

SM: red line
KD: green line
DX: yellow line







  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    SU Needle set screws? Also: SM needles? 120-130

    uid 37336's pic
    posted by  B20Paul. on  Mon Sep 21 04:52 CST 2009
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Mon Oct 20 10:54 CST 2014
    [RELATED]

    What motor do you have?

    A proper 115HP B18B or B20B is great with KD or KN needles, but if you have something funky like a B18D, or a low compression B18B or something else, then there are needles for those too.

    If you don't know what you have, then I'd always use KD or KN (or BBB for HIF6's)

    --
    Three 164's, Two 144's, One 142 & a partridge in a pear tree.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    SU Needle set screws? Also: SM needles? 120-130

    posted by  Kentucky on  Mon Sep 21 01:22 CST 2009
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Tue Sep 30 13:01 CST 2014
    [RELATED]

    I doubt that a British carburetor from that era uses any metric fasteners. Sorry, I don't know what it is. There were several common British threads in those days, with some of the fasteners being Whitworth. It might also be the English thread system that was used on American machinery at the time.

    Charley








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      SU Needle set screws? Also: SM needles? 120-130

      posted by  red92s on  Mon Sep 21 03:48 CST 2009
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Mon Aug 18 13:02 CST 2014
      [RELATED]

      I don't know why I didn't just pull the other set screw to match it up before, but it looks like it's nearly a perfect fit with a 10-28 thread.







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.