Vibration in motor WAWAWAWAWA !
Moderator
Joined: 05-01-2014
Posts: 8,509
From: California
Time out... I know we don't like to throw parts at a problem, but a new harmonic balancer isn't that much money and doesn't seem all that difficult. You're starting to get into a fairly big job with a timing set.
Moderator
Joined: 05-01-2014
Posts: 8,509
From: California
Balancer 2010 HHR SS and they even call it a vibration damper, so you had it right after all!
Senior Member
Joined: 08-03-2010
Posts: 3,564
From: Lake Ronkonkoma, N.Y.
Quick question, has the water temp been normal/ok??
Reason for asking is that the water pump and balance shafts are all run from the same chain assembly... A slip or jump of that chain could certainly cause a vibration. If you can't find the issue externally, you will need to go internal.
Reason for asking is that the water pump and balance shafts are all run from the same chain assembly... A slip or jump of that chain could certainly cause a vibration. If you can't find the issue externally, you will need to go internal.
Do you have a picture to show this?
How/why would the chain jump?
Tensioner being a worn part?
Moderator
Joined: 05-01-2014
Posts: 8,509
From: California
Found this, shows how to check the balancer chain to see if it's tight, without tearing everything apart.
Thread Starter
Member
Joined: 01-24-2015
Posts: 33
From: Los Angles
I am still considering replacing the vibration damper , but this article to check if the chains are loose is good ! I will also check them , basically if they are both tight there is no way the chain on the balance shaft sprockets would have skipped a tooth and this will lead me to believe the vibration is not from the balance shafts being out of timing , Correct ? Even if the chain was loose is it even possible it could skip a tooth ?
Thread Starter
Member
Joined: 01-24-2015
Posts: 33
From: Los Angles
Guy's I think I found a problem ! I opened the small water pump access panel and stuck my fingers in there to see if the chain was tight , It's really loose , I mean a lot. This is the chain that drives the balance shafts right ? Have not checked the cam timing chain yet but at this point it doesn't really matter it needs to come apart . I'm not sure if this is what's causing the vibration because the balance shafts are out of timing but it still needs to be fixed.
Thread Starter
Member
Joined: 01-24-2015
Posts: 33
From: Los Angles
Ok ! Here's the find . 1st: Timing chain is tight with no problems or visible wear. 2nd: loose balance shaft chain . Cause: broken left plastic guide that is by the balance shaft chain tensioner. It's so loose it had to have skipped a tooth or two . 3rd: on the right side balance shaft there is an arrow that should be lined up with a yellow link on the chain ? The link is about 5 links away from the arrow. The balance shafts are out of time, right ?
