Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Registered members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
SportTrac Discussion
Engine & Drivetrain
PVC Valve - Proper Remove and Replace
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Ford SportTrac Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="DILLARD000" data-source="post: 1051641" data-attributes="member: 74901"><p>Yes. If either Tensioner wears out, means it has lost its ability to put tension on that timing chain, which allows it to run loose, slapping surrounding components, sounds like a diesel running, aka "Death Rattle". First thing likely to break once Tensioner does not work & Chain is slapping, will be a plastic TensionerGuide\Cassette. Then Chain gets looser, starts slapping the plastic ValveCover, breaking that seal and\or cutting a crack\hole in the top end of ValveCover, leaking oil. Run this way long enough, chain starts jumping gear teeth, damaging pistons+valves, then vehicle needs either a new engin or a JunkYard crusher.</p><p></p><p>So again yes, assuming you have no rattle yet at 173kMiles, renewing both the FrontLeft and RearRight OilPressurized TimingTensioners for the first time since factory is a reasonable thing to do. If you have a slight rattle for a few seconds after starting engin, new Tensioners may help or a TimingGuide\Cassette may already be damaged to the point where it also needs to be replaced.</p><p></p><p>After changing several of these OilPressurized Tensioners, my gut feeling is that over time they get gummed up internally with Oil Sludge+Grit, nixxing their ability to put tension on the Chain. Of course, those who choose not to routinely change the Oil+Filter will suffer the consequences of this sooner than later.</p></blockquote><p></p>
[QUOTE="DILLARD000, post: 1051641, member: 74901"] Yes. If either Tensioner wears out, means it has lost its ability to put tension on that timing chain, which allows it to run loose, slapping surrounding components, sounds like a diesel running, aka "Death Rattle". First thing likely to break once Tensioner does not work & Chain is slapping, will be a plastic TensionerGuide\Cassette. Then Chain gets looser, starts slapping the plastic ValveCover, breaking that seal and\or cutting a crack\hole in the top end of ValveCover, leaking oil. Run this way long enough, chain starts jumping gear teeth, damaging pistons+valves, then vehicle needs either a new engin or a JunkYard crusher. So again yes, assuming you have no rattle yet at 173kMiles, renewing both the FrontLeft and RearRight OilPressurized TimingTensioners for the first time since factory is a reasonable thing to do. If you have a slight rattle for a few seconds after starting engin, new Tensioners may help or a TimingGuide\Cassette may already be damaged to the point where it also needs to be replaced. After changing several of these OilPressurized Tensioners, my gut feeling is that over time they get gummed up internally with Oil Sludge+Grit, nixxing their ability to put tension on the Chain. Of course, those who choose not to routinely change the Oil+Filter will suffer the consequences of this sooner than later. [/QUOTE]
Insert quotes…
Verification
Post reply
SportTrac Discussion
Engine & Drivetrain
PVC Valve - Proper Remove and Replace
Top