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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

B21A engine with Zenith carb. tune-up interpretations needed 200 1982

posted by  Allanwayne on  Tue Feb 15 15:44 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sun Jul 8 15:05 CST 2012
[RELATED]

Howdy.

I have lowered a high idle down to around 900 rpm by lubing the choke and carb linkages and replacing the air filter and spark plugs, but at this speed the alternator and brake failure lights are on (alternator not charging I assume). These lights are gone at 1200 rpm.

Idle is pretty steady with a little fluctuating.

The engine also runs on sometimes for a few seconds after turning of the ignition.

Timing is about 12 deg BTDC (with distrubutor vacuum hose off), compared to the recommended 8 deg BTDC.

Exhaust seems quite smoky (grey-brown), with no signs of oil on the spark plugs and cylinder compression is excellent.

No leaks were found in the vacuum hoses by inspection and the propane method.

Questions:

1. does the carb need adjusting?

2. what kind of distributor (silver bottom) and ignition system does this engine have and how is the timing adjusted to the recommended 8 deg BTDC? see photo

thanks.





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.