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
 
audiofilius's Avatar
 
Join Date: Jun 2003
Posts: 48
WUR adjust procedure?

Is there a procedure to adust the WUR?
I have heard that the bottom screw adjust the cold setting and the top the hot setting, or is it the other way around? (I have done the top adjust mod).
Everytime I attempt to adust the "hot" setting, the cold setting is affected and I have to start over...


Last edited by audiofilius; 09-06-2006 at 08:47 AM..
Old 09-06-2006, 07:20 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Bland
 
unclebilly's Avatar
 
Join Date: Nov 2003
Location: I'm 'out there...'
Posts: 8,674
Garage
You need to tap it back down if you crank it up too high.
__________________
06 Cayenne Turbo S and 11 Cayenne S
77 911S Wide Body GT2 WCMA race car
86 930 Slantnose - featured in Mar-Apr 2016 Classic Porsche
Sold: 76 930, 90 C4 Targa, 87 944, 06 Cayenne Turbo, 73 911 ChumpCar endurance racer - featured in May-June & July-Aug 2016 Classic Porsche
Old 09-06-2006, 10:40 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
oneblueyedog's Avatar
 
Join Date: Sep 2003
Location: Houston, TX
Posts: 992
Garage
If you have an adjustable one by some chance, the setting is made by fiddling with both of them to set the cold pressure by the chart in the Technical specifications booket pretaining to the WUR number on your WUR.

Unplug the Wur.

Get the fuel pump running while the engine is off.

Loosen the bottom nut so it is free from the body and tap down the center allthread lightly while you have a pressure meter on the WUR to Fuel distributor fuel circuit. Watch the meter as you tap down and stop when it reaches the pressure range dictated by the chart's ambient temperature when cold.

If you go too far, you tighten down the bottom nut against the WUR body to bring the pressure back in the range.

Cold pressure is the base for the rest of the range for CIS performance. Once set correctly, you adjust mixture at the Fuel Dist. and intake butterfly.

There's a ton of lore written about the WUR in the archives and a few books too. I feel for you brother.

__________________
78SC coupe, Silver Metallic
Old 09-06-2006, 01:20 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Reply


 


All times are GMT -8. The time now is 06:57 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 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.