DL3 conversion project, fast track.

[thomasinnv]

A little info on this Clifford (or anyone else that might have some insight)...

I was having an issue with the speed switch not functioning. With engine running and parked I was not getting 24v at the nc terminal so i replaced the speed switch with a new overstock item from a bus parts supplier. Same problem. I am seeing 24v at the sensor terminal. Not sure how this is supposed to work but it seems odd to me, I would think that the sensor would send a pulse of some kind, or variable resistance or variable voltage, not a constant voltage. I removed the sensor wire and verified that the 24v is being fed from the sensor wire and not backfeeding through the speed switch. So i am thinking that the problem is some where between the trans sensor and the speed switch. The sensor wire comes directly from the trans control module so i would assume either a bad sensor, or less likely a problem with the control module. I would think that if there was a problem with the speed sensor that i would get a code from the trans? There are no codes and there are no other issues with the trans, everything seems to work as it should aside from the speed switch circuit. I'm at a loss here. I can manually energize the steering systems (lock and latching both) and everything works as it should. Any thoughts? I'm thinking 35.00 for a speed sensor is pretty cheap troubleshooting. The thing that concerns me is the 24v coming from the control module, seems odd but what do I know.

[thomasinnv]

Made a few repairs over the last few weeks. Replaced valve cover gasket and isolators to stop leaking valve cover. Still have a very small leak, I think it's the pan gasket. The isolators are blown out pretty bad so a new set of isolators would probably stop the leak. Several hundred miles driven and very little oil on the back of the rig. Almost negligible. Certainly not like the old 2 stroke.

Finally got the rest of the new parts installed for the self steering tag. Had to do some welding on the horn, there were no wear plates installed and the steel was badly worn from the latch mechanism. Filled in the worn spots and installed all new wear plates, new latch arm and both sets of rollers. Everything works as it should now. Clifford you were not exaggerating one bit. It makes a huge difference in the turning radius and yes you really do need to watch the tail swing.