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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

K-Jet B21 takes its sweet time coming down from high RPM 200 1980

posted by  drj434343 on  Wed Mar 28 09:00 CST 2012
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Oct 24 09:46 CST 2013
[RELATED]

Just finished a full engine rebuild on a 80' B21F. I kept the original K-Jet system, but all new silicone vacuum hoses, etc. Car runs well currently, save one issue that has spanned before and after the rebuild.

After revving the engine, it takes it's sweet time coming back down to idle speed. For instance, if I rev to 3K rpm, it might take 6-8 seconds before returning to idle.

No indications there is an issue with idle. I can adjust the screw to either kill the engine or make it idle at 1500 rpm; I'm right in the middle of my adjustment range.

This issue has been present prior to the rebuild, before everything had been taken apart, inspected, and cleaned.

I've checked that the throttle returns to a zero position right after rev, and it does.

Any idea what could be causing this?






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.