The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

SU carb rebuild 444-544

posted by  mjamgb on  Tue Feb 8 09:03 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Sep 4 14:53 CST 2012
[RELATED]

The springs should be the same in each carb. The sticky piston would have definitely caused you to have backfire issues on overrun. It isn't critical to have identical floats in each carb but it would eliminate one variable.

The DX needle is the higher performance needle. The KB was reccomended for the B18D version of the motor. The SM was recommended for the B18B version.

I have posted a graph of needle diameters on the photo gallery FYI.

Mike!

p.s. Chasing issues around on carbs will drive you crazy. Make certain you re-tune the entire engine after any alterations so you have good gaps, timing, lash, etc. I suggest getting a full rebuild kit (gaskets, throttle shafts, butterflies, jets, needle valve) and a replacement spring and two new needles. It is nearly certain that the needles in those carbs you have are worn and only "resemble" whatever they are marked at anyway.

--
Mike!






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.