Timing 73 2.0L D-jet, Help |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Timing 73 2.0L D-jet, Help |
steuspeed |
Apr 11 2021, 06:48 PM
Post
#1
|
Senior Member Group: Members Posts: 1,006 Joined: 12-July 11 From: Portland, Oregon Member No.: 13,308 Region Association: Pacific Northwest |
In pursuit of hunting idle, I have done the following. New plugs and wires. All new vacuum lines. Reset the ECU to factory notch on the knob. With a mirror, I found two straight notches on the back edge of the fan. The first one lined up with the #1 plug on the distributer and the dizzy notch mark. I believe that is TDC? It was (red) so I marked red on the front edge of the fan where I can see it through the hole with my timing light. The second one ~4 blades further (no color) I marked yellow line on the front edge. Removed both vac lines from the dizzy. Run the engine up to about 2K and I can get the red to line up with the notch. As the RPM goes higher it walks toward the passenger side out of sight. Pertronix rotor no points.
Is seems to me the my yellow line should be lining up as per Hanes manual. What am I doing wrong? EDIT: Okay, so TDC should not be the red, but the unpainted clear mark. The red is the 27 BTDC timing mark. |
Bleyseng |
Apr 16 2021, 08:53 AM
Post
#2
|
Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Ok I'll chime in - Do you have a matching 73 ECU (037) and 017 CHT plus the 270 ohm resistor? I see your MPS is completely mis-matched so get your FI parts to match first. Then if your MPS can be calibrated to 037 specs you will get it right.
Then to set your idle speed it must be done with the engine hot so after 15 minutes of driving you can finally set the idle mix and speed using the ECU knob and the air bypass screw. (IMG:style_emoticons/default/piratenanner.gif) |
Lo-Fi Version | Time is now: 16th May 2024 - 03:46 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |