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



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

Compression Test for B18 120-130

posted by  walrus3 on  Wed Aug 27 16:29 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Dec 2 14:20 CST 2013
[RELATED]

Where are you gonna get air to compress if the throttle is closed?
Unhook the coil wire so the car doesn't start and have someone crank it
while the compression tester is tightly held in each plug hole.
Readings should be about the same and hopefully over 100 psig, maybe as much
as 150. If it is appreciably lower on one or more cylinders, put about
a tablespoon full of motor oil in each cylinder and do it again.
If the pressure is much higher it indicates that the rings were worn.
If the pressure is still low, the loss is probably in one or more valves.
You may be able to tell if it is intake or exhaust by taking off the air
cleaners and listening. If it is intake you probably will hear some air
leaking. If not, it would probably be exhaust or, if you have other symptoms,
maybe a gasket.
--
George Downs, The "original" Walrus3, Bartlesville, Oklahoma






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.