You would be correct IF you left the temp sender plugged into the ECU. But, by unplugging the temperature sender for the ECU, the timing does not advance. The procedure listed is correct and explained much better than the Bentley manual does it! Cheers! David Marshall Fast Forward Automotive Inc. 4356 Quesnel-Hixon Road Quesnel BC Canada V2J 6Z3 http://www.fastforward.ca mailto:sales@fastforward.ca Phone: (250) 992 7775 FAX: (250) 992 1160 - Vanagon Accessories and Engine Conversions - Vanagon, Transporter and Iltis Sales and Importation - European Lighting for most Volkswagen models
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-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf Of Mark Keller Sent: February 23, 2005 7:45 PM To: vanagon@GERRY.VANAGON.COM Subject: Ignition Timing Procedure 1986+ Vanagon 2.1L Digifant
Date: Wed, 23 Feb 2005 14:17:40 -0500 From: tabe johnson <xtabe@YAHOO.COM> Subject: Re: Timing 1.9,2.1 engines Timing these engines is straightforward, though reading Bentley doesn't make it sound simple! Here's a paraphrased posting of Dennis Haynes' which explains it most clearly:
Ignition Timing Procedure 1986+ Vanagon 2.1L Digifant 1. Warm engine to normal operating temp. 2. Shut off engine. 3. Connect timing light. 4. Connect tachometer. (optional) 5. Restart engine and run up to more than 2000 RPM. (~2500 works well) 6. Disconnect BLUE CONNECTOR from Temp sensor II. (Don't catch your tie in the belts!) 7. Maintain engine RPMs ~2500 and point timing light at timing mark. (5 BTDC) 8. If timing mark aligns with split line between crankcase halves timing is correct. 9. If not loosen distributor and make adjustment. Don't forget to retighten the distributor if you had to loosen it. Tabe, I don't agee with this timing of total 5 degrees before Top Dead Center at 2500 Rpm. Total advance should be all in by 2500 RPM, and that is 35 degrees plus idle for a total advance of 40 degrees. Perhaps your reading Dennis's instructions incorrectly. Mark Keller 91 Carat |
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