Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
gerard vaglio's Avatar
 
Join Date: Dec 2002
Location: bay area
Posts: 423
Bucking in winter

My 79sc generally runs well but in the cold weather I noticed I get some bucking. It's better when the engine warms up but never comeletely dissapears untill the warm weather returns.

I've got new cap and rotor, new plugs, new wires, new fuel and air filters.

What can I do or check to help this? Any suggestions? Thanks.

Old 01-26-2004, 10:37 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 18,343
retard the timing back to stock, if it isn't already, and set the CO to 3.5%. i usually advocate setting the timing to 35 total advance, but some cars do a little bucking up there, and the stock setting seems to prevent that.
__________________
https://www.instagram.com/johnwalker8704
8009 103rd pl ne Marysville Wa 98270
206 637 4071
Old 01-26-2004, 12:03 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
gerard vaglio's Avatar
 
Join Date: Dec 2002
Location: bay area
Posts: 423
Thanks John, I'll take a look at the timming tomorrow. I don't have any way to check the CO. When I looked at the plugs they were slightly whitish but not bad. Does that mean it could be running a little lean?

I have the adjustment tool, can I simply turn it slightly in the proper direction or is that gonna mess everything up.

What is the proper direction to richen the mixture? Boy, I sound dangerous don't I?

I live in California but if I lived in your area I would be at your shop in a heartbeat. Thank you for all your advice, I'm slowly figuring this car out.

Take care,

Gerard
Old 01-26-2004, 09:32 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
Join Date: Oct 2000
Location: Nearby
Posts: 54,072
Garage
Send a message via AIM to fintstone
My advice would not be to adjust mixture without a means to measure it. That said, turn right for richer.

__________________
74 Targa 3.0, 89 Carrera, 04 Cayenne Turbo
http://www.pelicanparts.com/gallery/fintstone/
"The problem with socialism is that you eventually run out of other people's money"
Some are born free. Some have freedom thrust upon them. Others simply surrender
Old 01-27-2004, 09:46 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 11:07 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2020 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.