Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

start up noise

duncan11
 Share

Recommended Posts

duncan11 Member

duncan11

Posted
Posted

When starting first thing my engine makes a growl noise, could this be a chain tensioner pumping up , and the noise is in fact the timming chains running over the tensioners.. it only lasts for a fraction of a second. The noise is not their if  I  re- start it within a few hours.  Have had new water pump in last 12 months. Any help thanks

  • Moderators
JFP in PA Member

JFP in PA

Posted
  • Moderators
Posted
1 hour ago, duncan11 said:

When starting first thing my engine makes a growl noise, could this be a chain tensioner pumping up , and the noise is in fact the timming chains running over the tensioners.. it only lasts for a fraction of a second. The noise is not their if  I  re- start it within a few hours.  Have had new water pump in last 12 months. Any help thanks

 

Welcome to RennTech :welcomeani:

The M96/97 engines are famous for start up noises, primarily caused by the hydraulic chain tensioners bleeding down while sitting (Porsche updated these a couple of times to try and help with this).  Eventually, they will need to be changed, but in the meanwhile switching to an oil with higher film strength can help reduce the issue.

  • Like 1
  • Moderators
JFP in PA Member

JFP in PA

Posted
  • Moderators
Posted
41 minutes ago, Harry Hunt said:

Is this just the o-ring on the tensioners failing or is there an internal spring or similar loosing tension?

:cheers:

 

The tensioners have internal components that wear.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.