Darin
05-16-2002, 06:30 AM
I finally got around to trying to adjust the vacuum advance on my 89 GW. I was under the impression that there was an alan head adjustment just inside the distributor behind the vacuum module. I can't find a place to adjust anywhere in the distributor.
I finally realized that all my mid throttle hiway pinging is due to vacuum advance. Do all stock distrubutors have the ability to be adjusted? There is a small aluminum tag with numbers attached to the vacuum module part of the dizzy. I can post it this evening if it helps anyone.
From a 400 mile trip last weekend I learned that plugging the vacuum line on the dizzy and the hose to it gives me zero pinging and I can run 87 octane. I would love to get this adjusted correctly. Thanks.
I finally realized that all my mid throttle hiway pinging is due to vacuum advance. Do all stock distrubutors have the ability to be adjusted? There is a small aluminum tag with numbers attached to the vacuum module part of the dizzy. I can post it this evening if it helps anyone.
From a 400 mile trip last weekend I learned that plugging the vacuum line on the dizzy and the hose to it gives me zero pinging and I can run 87 octane. I would love to get this adjusted correctly. Thanks.