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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

intake manifold ??'s 200 1981

posted by  elaidlaw on  Mon Jun 16 04:38 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

1981 245 b21 n/a (canadian model) m46 390*** km

Hi all-

This past weekend I was fiddling around with my brick (installed a new choke cable and cleaned the carb) and noticed something weird upon starting it up. There was a huge hiss -vaccuum leak- which turned out to be coming from the intake manifold. On the top of the intake manifold there is a solenoid mounted ahead (towards the cylinders) of the throttle body, and just behind this was the source of the hiss. It's a hole/open access port thingy that, according to haynes, is where the idle control screw is located IF you have a non-SU carb (I forget the model). I have a normally aspirated b21 with the SU carb on it.
So, I'm assuming there was some sort of plug in this previously unnoticed port. When I blocked the hole, the leak/hiss stopped and it ran better.
I screwed in a spare caliper mounting bolt and all appears to be well.
But what is actually supposed to be there, and how on earth did it vanish? I never went anywhere near it, and it was running fine when I turned it off to start work.

Any hints?

Thanks
-Eric





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.