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)

Vaccuum advance- 77 2.7L

aricaandjustin

By aricaandjustin
in 911, 912 Series

 Share

Recommended Posts

aricaandjustin Member

aricaandjustin

Posted
Posted

Just checking that my vaccuum hoses are hooked up OK....I get full vacuum at idle on my advance line and as I load up the engine the vaccuum decreases. I am going to check the timing tommorrow to verify that the decreasing vacuum does in fact advance the timing as it is a little bizarre to me.

The problem I am getting is that the engine lopes along when running along at a constant speed kind of like a chugging feeling. It also back fires out the exhaust in neutral and if I hammer it and let off. The wires are old as well as the plugs so I plan to replace these as well.

I bought a new cap and rotor (with a spring activated cutout) and put them in. The other thing that I notice is that when I loosen the distributor clamp down bolt and just gently bump the distributor, the engine dies and there sounds like alot of arcing is going on inside the distributor....

Link to comment
Share on other sites

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.