

| Subject: | Re: Engine overheats after spark plug change |
| From: | Dave Katsuki |
| Date: | Sat, 28 Apr 2001 22:30:40 -0400 |
<html> I would check the rotor, since there is a resistor in the rotor that occasionally fries itself (should be obvious by looking at it, but measure resistance to be sure.) I had a similar problem on our 90 van which turned out to be the rotor. Non-Bosch rotors are alleged to fail more frequently.<br> <br> Also - when you adjust the timing on the pre-87 vans, I seem to recall that you need to disconnect the idle stabilizer and plug the two connectors together? <br> <br> It's been a while since I had an 84, though.<br> <br> I have the platinum plugs in our 90, and it runs fine, but I can imagine that they might take more or less current to fire, so might aggrevate or show up some other weakness in the ignition.<br> <br> Dave <br> <br> 90 Westy<br> <br> <br> <br> At 09:34 AM 4/27/01 -0400, Paul Borghese wrote:<br> <blockquote type=cite cite><font size=2>My '85 Vanagon has been idling rough for a few weeks now. I found the problem being a bad spark plug wire (resistance was infinite). I replaced the spark plug wire, and replaced the old worn-out Bosch spark plugs with new Bosch Platinum plugs. It seemed to me the engine was idling a little rougher then if I would have just kept the older plugs in, but it might have been my imagination. </font><br> <br> <font size=2>I then adjusted the timing and took it out for a spin. The problem I am having is there seems to be no power at the lower speeds and the Van is definitely getting hotter then normal when at an idle.</font><br> <br> <font size=2>So I have two theories. The first is I am doing something wrong with the timing. The second is the spark plugs are problematic.</font><br> <br> <font size=2>The timing on the van is really weird. If I set it to the correct timing, the car idles poor and requires the use of the idle stabilizer. If I adjust to more before TDC then recommended, the car idles much smoother and can maintain 850 RPM even without the use of the idle stabilizer.</font><br> <br> <font size=2>So what do you guys think. Should I adjust the idle to be more BTDC for the ride home, or do you think I need to replace the spark plugs? Or some other problem?</font><br> <br> <font size=2>Thanks!</font><br> <br> <font size=2>Paul Borghese</font></blockquote></html>
Have something to add on this topic today? Revive this thread in the forum »