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
 
Join Date: Dec 2005
Location: Hamilton, IL
Posts: 553
Send a message via AIM to fierochris Send a message via Yahoo to fierochris
basic zenith carb adjustment.

I can visibly see fuel shooting out of three cylinders when i rev my engine. and the engine is resistant to rev past about 2200 rpm. I'm sure its rich on three cylinders, but i don't know what screw does what on the carbs, and i cant find a diagram explaining it. I'm new to carbs completely. i plan to have the carb adjusted professionally. but i need to get it running well enough to get it there first. can some tell me what screw will lean out the carb?

__________________
71' 911T Targa, current toy.
86.5 928s traded for new 911
71 911 Targa w/ gas burners, PMO's, *sold*
Lamborghini diablo replica w/ 350 V8
85.5' 944 n/a euro ( gave to dad )
87 fiero cp. candy blue, chrome 16's
90' DSM 24psi. 18G fmic,
82' benz 300sd turbo, intercooled.
73' Karmann Ghia cab. sold
04' Standard 250s ox, euro bb 28/10 gearing, odyssey, profile, 29lbs,
check out www.vintagevwcars.com


wanted: 914, 944, 928 project

Last edited by fierochris; 01-08-2007 at 07:28 AM..
Old 01-08-2007, 07:15 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
austin552's Avatar
 
Join Date: Nov 2004
Location: Kinston, NC/ Casa Grande, AZ
Posts: 4,769
Garage
I have had problems getting mine tuned as well. Have to tow the car two hours away to get it done. Nobody does carbs here anymore. There should be someone that we could ship them to to have them tuned.
__________________
1974 911s

"It smelled like German heaven"
http://www.youtube.com/watch?v=6ySt9SeZl9s
Old 01-08-2007, 08:34 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
DByers's Avatar
 
Join Date: Apr 2002
Location: Santa Barbara, CA
Posts: 2,062
I have the info for Zenith adjusting on my home computer and can post it when I get home tonight. Also do a search here using Zenith adjustment or carb adjustment and that should bring up several good threads on the subject.
Here is a diagram that might help also



This link may prove helpfull also,
Zenith adjusment
__________________
Dan Byers
Old 01-08-2007, 08:53 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
austin552's Avatar
 
Join Date: Nov 2004
Location: Kinston, NC/ Casa Grande, AZ
Posts: 4,769
Garage
Thumbs up

Great Link Dan, Thanks.
__________________
1974 911s

"It smelled like German heaven"
http://www.youtube.com/watch?v=6ySt9SeZl9s
Old 01-08-2007, 09:21 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Home of the Whopper
 
BK911's Avatar
 
Join Date: Mar 2001
Location: Rocky Top, TN
Posts: 5,718
Garage
The Haynes manual covers it pretty well. At least I was able to tune mine using it.
__________________
FS: '71 911E Targa rustbucket - $20k
Old 01-08-2007, 09:36 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
Join Date: Dec 2005
Location: Hamilton, IL
Posts: 553
Send a message via AIM to fierochris Send a message via Yahoo to fierochris
i dont see 79 on mine. upgraded, or removed for some reason?
__________________
71' 911T Targa, current toy.
86.5 928s traded for new 911
71 911 Targa w/ gas burners, PMO's, *sold*
Lamborghini diablo replica w/ 350 V8
85.5' 944 n/a euro ( gave to dad )
87 fiero cp. candy blue, chrome 16's
90' DSM 24psi. 18G fmic,
82' benz 300sd turbo, intercooled.
73' Karmann Ghia cab. sold
04' Standard 250s ox, euro bb 28/10 gearing, odyssey, profile, 29lbs,
check out www.vintagevwcars.com


wanted: 914, 944, 928 project
Old 01-08-2007, 09:36 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered User
 
JJPORSCHE's Avatar
 
Join Date: Oct 2006
Location: Chicago
Posts: 1
#79 is the auxilary enrichment circuit....I've seen cars with them removed and in some cases the holes JB welded up. I believe it's for emmision control, but mine never did pass emmisions and I still have it. Too scared to take it off for fear of messing up something. If it ain't broke.....

Brian
Old 01-08-2007, 04:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
Slow911's Avatar
 
Join Date: Apr 2002
Location: Windy City
Posts: 227
Garage
OOoops I replied using my sons account.
sorry
Brian
__________________
PCA-Chgo
1970 911t
Old 01-08-2007, 04:21 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered
 
Join Date: Oct 2006
Location: Chas, SC
Posts: 1,088
These are great carbs once they are set up. Great throttle response. Check the injection nozzles (sp???) they will leak/drip fuel.

__________________
Tim
1986 930
Gone:71,2,4 914's, 70T, 71T(RS),77S
Old 01-08-2007, 05:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 01:09 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, 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.