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
 
jtfreels's Avatar
 
Join Date: May 2005
Location: Austin, TX
Posts: 909
What have I messed up now? Timing question

My car quit on me a couple of weeks ago, and hasn't started since. I was not getting any spark, the green wire from the distributor was black, checking it seemed to fail. I ordered and got a new green wire.
Today I worked on putting in the new wire, pulled the distributor to remove the old connector, put in the new wire.
Put the distributor back in, put on a new rotor and cap. Put the wires back on the cap, I'm as sure as I can be that all the wires are in the right place, I labeled every wire before I started.

At fires attempt to start, was badly missfiring..... Can the distributor be in wrong? I rotated the engine to the z1 mark with the rotor on cylinder 1, before I pulled the distributor. I dont know if it was compression or exhaust, does that matter if the distributor was on the cylinder 1 mark when I put it back in?
Do I need to pull the distributor rotate the engine to the compression stroke for 1 and put the distributor back in?

On the upside looks like my fix to the green wire has got the plugs to spark again, although at the wrong time apparently.

__________________
2002 Boxster Speed Yellow
Old 08-16-2008, 07:07 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,523
Your timing is likely off.

Pull the valve covers, make sure it is 1 TDC by wiggling the rocker arm. If there is any movement at all, then it is top dead center, compression stroke.

You may need somebody to help start the car while you check the timing of the engine with a timing light. You can rotate the dizzy until the timing is right, and then lock it down.
__________________
Porsche 2005 GT3, 2006 997S with bore-scoring
Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS
Disposable Car: BMW 530xiT, 2008 Mini Cooper S
Two-wheel art: Ducati 907IE, Ducati 851
Old 08-16-2008, 07:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
Join Date: Feb 2006
Location: Scottsdale, AZ
Posts: 6,757
Garage
Was the rotor pointed to the notch in the edge of the distributor when you pulled the distributor?

If not then take the distributor out and rotate the engine back to TDC for cylinder #1 and put your distributor back in so that the rotor is aligned with the notch.

The distributor rotates slightly when inserting it, so you want to insert it so that as it is fully seated the rotor lines up with the notch.
__________________
78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS
Old 08-16-2008, 08:10 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
3.2 CAB's Avatar
 
Join Date: Dec 2003
Location: MS.
Posts: 2,322
You sort of have to "lead" the placement of the rotor, due to the way the dizzy engages the gears, and will finally seat with the rotor position changing a little the further in it is inserted. Once you stab the distributor the first time, you will see how far off it will become once fully seated, then you can allow for this movement when you note how far the rotor was turned when seated fully. Most engines that have the gear type of drive on the distributor will move the rotor at least one plug wire position when the dizzy is installed, some even a little more, some a little less.

I like the way my Mopars are, they have just a blade tip, so you are either correct, or 180 degrees off. Good luck!! Tony.
__________________
84' Steelslantnose Cab.
1953 Dodge B-4-B-108" 90,127 miles
1953 Dodge B-4-C-116" 58,146 miles
1954 Dodge C-1-B8-108" 241V8 POLY
1973 Roadrunner 440-SIX-PACK*
1986 F-250 Super Cab-460 V8 tow
Newest additions-
Matching numbers 1973 340 Road Runner!!
1948 Dodge B-1-F-152" 1-1/2 ton Dump body, 39,690 miles
others...
Old 08-17-2008, 07:39 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
jtfreels's Avatar
 
Join Date: May 2005
Location: Austin, TX
Posts: 909
Another thing, I marked the position of the distributor before pulling in out. If you imagine the nut that is loosened for adjusting the timing, the distributor was rotated as far as it will go clockwise. I should put it back exactly there correct?

Jay
__________________
2002 Boxster Speed Yellow
Old 08-17-2008, 08:11 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered
 
Join Date: Feb 2006
Location: Scottsdale, AZ
Posts: 6,757
Garage
Correct, put it back the way it was when it was running, then adjust the timing until it runs smooth, carefully bring the engine to operating temperature 180 deg F. and adjust the idle, then check and adjust the timing and the timing advance.
__________________
78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS
Old 08-17-2008, 09:41 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered
 
jtfreels's Avatar
 
Join Date: May 2005
Location: Austin, TX
Posts: 909
Just a non update, wasn't able to get back to working on the car yesterday, which is probably a good thing, need to digest these replies first.

Thanks for the help.

Jay

__________________
2002 Boxster Speed Yellow
Old 08-18-2008, 05:38 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Reply


 


All times are GMT -8. The time now is 04:45 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.