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On 5 Sep 2002, at 22:50, John Jaranson wrote: > The only other thing I changed was the spark > plugs, from Champion RL87YC to Bosch Platinum WR8AP. The R stands for resistor. This must be a new plug since I last bought any of these. Mine are just W8AP, which work just fine. If you can get these, do so, but W8AC work fine also. > Ever since she has had a popping through the exhaust on the 3/4 side. Well > I fiddle with it tonight. Cleaned the carbs and reset them and still she > pops and rattles around. I pulled the #3 spark plug lead and the engine did > not change RPM or sound. Even when I rev'd it a bit. #4 caused a bit of > engine RPM drop, but not enough to kill the engine. Both 1 and 2 would kill > the engine when I pulled them. I also noticed that the tin on the 3/4 side > was not very hot, while the 1/2 tin was. I crawled undereath and #3 > cylinder was cool enough to leave my fingers on it. #4 was a bit hotter. > 1/2 were both hot. Couldn't keep my fingers on them. Check pushrods to make sure they are seated properly in the rockers. I can't think of anything else, unless a piece of dirt just drifted into your float valve and your left bowl is empty. Take the cover off the carb and check. SP cables miswired? (I know, I'm grasping at straws.) > I pulled the plugs and checked the resistance from the top post to the > center electrode. #3 Bosch Platinum was about 4 ohms and #1 and #2 were > over 1000. The foruth is still in the engine. I checked a couple of old > Bosch W8AC that I had laying around and they measured 1 ohm. So were the > Champions. I'm guessing #3 is a W8AP, which should also be just fine. > Do I have bad plugs? Should I go back to the Champions? I don't have a > complete set of the old W8ACs. I only have three. What else could it be? > I did check the compression on #3 and it was 115 psi. I am at a loss. ANy > ideas anyone? Any one out there tonight? I really need to get her back on > the road by morning for work. Not likely bad plugs, but you could swap them around to check. I wouldn't use the Champions, too much chance of seizing in the head. ??? - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/