

| Subject: | Re: firing on 3 cylinders. |
| From: | craig cowan |
| Date: | Mon, 20 Nov 2006 21:50:47 -0500 |
With the help you guys provided i was able to find the problem and solve it, though im not entirely sure as to what i did to solve it. I replaced the spark plugs, put on a new distributor cap, exchanged wires between cylinders, and made sure i had the firing order set properly. And with all that done, it now fires on all 4 cylinders. The timing must still be off by a little, as i now have slightly less power than i did before (at least it feels that way). I will experiment with the timing once it (hopefully) passes inspection here in PA. Thanks to all. -Craig '85GL Sunroof On 11/20/06, Marion Lyle Lathem <skylink@mfire.com> wrote: > Craig, > The inside of my rotor cap in the center melted... carbon gone, Bakelite > melted some..? Your at that point that you are desperate... and would pull > your hair out if you weren't so bumfuzzled. I'm guessing it's something > really simple, and you will kick yourself when you find it..lol..! > > Back off a few hours, or just wait until later, and think about all you > have done to it...you have the answers already in your head... now just > relax and think about it..! > Good Luck, Lyle > > ----- Original Message ----- > From: "craig cowan" <phishman068@gmail.com> > To: "Marion Lyle Lathem" <skylink@mfire.com> > Sent: Sunday, November 19, 2006 8:52 PM > Subject: Re: firing on 3 cylinders. > > > > yes i have the bentley, and anyone who disputes its not worth its > > weight in gold or some less precious but still highly regarded and > > valuable substance like copper.....is insane. Even armed with the > > mighty Bentley, having exchanged the plugs, and having traded wires, > > im still having the same problem. i truely believe i have the wires > > mixed up on the cap. I'm lining them up in such a way that Plug one is > > directy above where the rotor lines up at TDC, and to the left in a > > clockwise rotation of that would be 4, then 3, then 2. Ive tried > > switching things around, figuring "maybe im still just off somehow" > > but regardless of where i put whatever plug, it either runs on those 3 > > cylinders, or runs worse/doesnt start. Its crazy. Tommorow i'll be > > hunting through it all and replacing the Cap and Rotor (even though i > > have the newest looking rotor ive ever seen in a scrap yard on there > > now). Thanks for the help thus far. I'll be sure to keep you posted. > > > > -Craig > > > > On 11/19/06, Marion Lyle Lathem <skylink@mfire.com> wrote: > >> Those wires can pull out of either end... check the # 4 spark plug wire, > >> or > >> trade wires and see if the problem changes with the wire. I just > >> stupidly > >> has 3 and 4 cylinder's reversed on the cap. Course before that, I had a > >> world of trouble. Try changing # 4 plug, it has to be one of those two > >> things, the wire or the plug if it idles down to 900 without shaking to > >> pieces. > >> Do you have a Bentley manual for your Vanagon..? > >> Lyle > >> ----- Original Message ----- > >> From: "craig cowan" <phishman068@gmail.com> > >> To: "Marion Lyle Lathem" <skylink@mfire.com> > >> Sent: Sunday, November 19, 2006 6:52 PM > >> Subject: Re: firing on 3 cylinders. > >> > >> > >> > Yes its set to idle at 900, running beautifully. It used to have to > >> > idle much higher to be hapy, now its happy right at 900. Smooth, for 3 > >> > cylinders. If i pull the wire from #4. It doesnt effect the way the > >> > engine runs at all. This tells me that that cylinder is not firing. > >> > I've changed the plugs with the plug from cylinder 2, and no change at > >> > all. Even with #4's plug in 2, it runs. I even switched the wires > >> > between the two. The wires were all replaced last year. #4 has > >> > compression.... you can hear it with the plug out, and it can blow > >> > your finger out of the cylinder. So....what did you end up doing? I > >> > have not put a new cap on yet, but the cap looks pretty decent. I put > >> > a new rotor on there. Its simply puzzling me. Any ideas would be > >> > great. > >> > > >> > -Craig > >> > > >> > On 11/19/06, Marion Lyle Lathem <skylink@mfire.com> wrote: > >> >> Craig, > >> >> You so describe what I had going on...it took me weeks to solve > >> >> it... > >> >> simply because I thought I knew what I was doing and doing it > >> >> right...! > >> >> Will it idle at 900 RPM's...and fairly smoothly..? If you have to > >> >> idle > >> >> it > >> >> up around 1300 to 1400 rPM's to get it smooth.. .then change the > >> >> distributor > >> >> cap wires 3 and 4... see what that does..? > >> >> Good Luck, Lyle > >> >> ----- Original Message ----- > >> >> From: "craig cowan" <phishman068@GMAIL.COM> > >> >> To: <vanagon@GERRY.VANAGON.COM> > >> >> Sent: Sunday, November 19, 2006 2:15 PM > >> >> Subject: firing on 3 cylinders. > >> >> > >> >> > >> >> > Hello again. I had my engine timed with the help of a local guy whos > >> >> > good with timing, and it was running great. Then suddenly it started > >> >> > to sound "strange". We tracked the problem to an exaust leak, and > >> >> > the > >> >> > sound is normal for an exaust leak. However, we wanted to rule out > >> >> > that one of the cylinders wasnt firing, so while selectively > >> >> > removing > >> >> > the plug wires from the cap, we noticed that removing the wire from > >> >> > cylinder 4, there is no change in the way the engine runs. If any > >> >> > other wire is removed, the engine imediately runs poorly. This would > >> >> > make it seem that cylinder 4 is not running. We've switched wires > >> >> > between working cylinders, spark plugs, and a new rotor. With the > >> >> > plug > >> >> > removed turning the engine over, theres compression in that > >> >> > cylinder. > >> >> > We dont have a compression guage yet, but we know its enough to pop > >> >> > your finger out of the hole. Yet, it seems to not be running. Last > >> >> > thought is that the Cap is bad for that cylinder? I will try to get > >> >> > a > >> >> > new cap and see if that fixes things. Any sugestions on what to > >> >> > check > >> >> > would be great. > >> >> > > >> >> > PS: I believe it ran on all 4 before it was re-timed. > >> >> > > >> >> > -Craig Cowan > >> >> > '85GL Sunroof > >> >> > >> >> > >> > >> > >
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