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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Cam gear runout (wobble) causing annoying sound

posted by  Bill1959 on  Wed Nov 4 22:07 CST 2015
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Sep 17 20:59 CST 2014
[RELATED]

Had subtle (but annoying) engine sound ever since I bought vehicle, somehow missed it when test-driven, but as I said somewhat subtle; Buddy has same vehicle, no such sound on his (he DID notice difference; when we drove both, one after the other). Sound is wah-wah-wah-wah .. (best I can describe) which increases in frequency with engine speed. Not normal. Annoying.
Finally traced (I hope) to runout in cam gears, visually quite noticeable while engine running. Causes tensioner "ear" to oscillate 1/16 inch or more total, I'm thinking that's excessive? Noise definitely same frequency as cam shaft rotation and tensioner oscillation.
Anyone experienced this, and played with eliminating runout of cam pulley teeth? (Of course, if pulley adjustment in slots (I have VVT's) happened to be needed for timing, runout efforts would be for nought; but I'm thinking such timing adjustment is not normally necessary?)
You may be thinking, "wow, this guy's got way too much time on his hands"; but honestly, this noise is eating my lunch.
THANKS IN ADVANCE.
(Please don't suggest I turn volume up ..)
--
2007 S60T5 6-SPEED






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.