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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Knock by front exhaust cam during warm up

posted by  maplebones on  Sun Oct 15 11:06 CST 2023
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Oct 23 22:53 CST 2014
[RELATED]

Hi,

If you haven't solved this yet, I suggest you give a look at your exhaust manifold gaskets.

I wouldn't have believed it until it happened to me, but a failed or failing gasket can make a knock that mimics a rod knock.

They don't usually doesn't come and go but strange things sometimes happen.

It could possibly be explained by the fact that the manifold gets hot and expands before the block does. And then maybe when the block eventually expands it seals it back enough not to be noticeable.

Good luck,
Peter






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.