Re: 1969 Chrysler 55hp Model 5555... got it STARTED! runs rough @ throttle...?
Re: 1969 Chrysler 55hp Model 5555... got it STARTED! runs rough @ throttle...?
Couple of things to check. First, verify that the control box is not in the neutral warm up position. If you are using the original Chrysler control then it is a silver knob just behind the control arm. Make sure it is pushed in all the way or else only the throttle cable will move when you move the arm. If you are using an aftermarket control like I am then it may be different. In my case there is no knob but the arm itself pulls out to disengage the shift function.
If the control box does not appear to be the problem then go back and look at the engine. On the starboard side below the fuel pump is where the shift cable terminates. Make sure the cable end fitting has not popped off from the ball socket. If this is OK then follow the cable forward to where it attaches to the pivot plate. Make sure the swivel clasp is secure around the cable. There is a groove on the end of the cable where the plastic part ends. The swivel clasp must go around the cable right at this groove.
If all of that looks OK then have someone move the control arm while you watch the cable end at the engine. Does the shift cable move and does the pivot plate move? If yes then skip to next paragraph. If not then your problem could indeed be inside the control box, most likely the cable end has come off, OR the cable has a break somewhere. I have an evinrude with the same problem. The outer sheath of the cable broke but the inner part is intact so when you shift the sheath slides back and forth but the inner part does not move.
If the cable seemed fine and the pivot plate was moving, then do this: Put the control arm in the forward position. Now turn the flywheel by hand while watching the prop. Do this in both the forward and reverse positions. If the prop does not turn with the engine in either, or both positions, then your shift cable is out of adjustment. Correcting this basically amounts to popping the cable end off from the ball socket and threading it in or out.
If adjustment seems fine and prop turns in both forward and reverse positions, then the next step is to put it in gear and either wedge the flywheel or have someone hold it with a wrench while you try to turn the prop by hand. If you can turn the prop by hand without turning the engine then your prop hub is spun and needs to be replaced.
Re: 1969 Chrysler 55hp Model 5555... got it STARTED! runs rough @ throttle...?
Couple of things to check. First, verify that the control box is not in the neutral warm up position. If you are using the original Chrysler control then it is a silver knob just behind the control arm. Make sure it is pushed in all the way or else only the throttle cable will move when you move the arm. If you are using an aftermarket control like I am then it may be different. In my case there is no knob but the arm itself pulls out to disengage the shift function.
If the control box does not appear to be the problem then go back and look at the engine. On the starboard side below the fuel pump is where the shift cable terminates. Make sure the cable end fitting has not popped off from the ball socket. If this is OK then follow the cable forward to where it attaches to the pivot plate. Make sure the swivel clasp is secure around the cable. There is a groove on the end of the cable where the plastic part ends. The swivel clasp must go around the cable right at this groove.
If all of that looks OK then have someone move the control arm while you watch the cable end at the engine. Does the shift cable move and does the pivot plate move? If yes then skip to next paragraph. If not then your problem could indeed be inside the control box, most likely the cable end has come off, OR the cable has a break somewhere. I have an evinrude with the same problem. The outer sheath of the cable broke but the inner part is intact so when you shift the sheath slides back and forth but the inner part does not move.
If the cable seemed fine and the pivot plate was moving, then do this: Put the control arm in the forward position. Now turn the flywheel by hand while watching the prop. Do this in both the forward and reverse positions. If the prop does not turn with the engine in either, or both positions, then your shift cable is out of adjustment. Correcting this basically amounts to popping the cable end off from the ball socket and threading it in or out.
If adjustment seems fine and prop turns in both forward and reverse positions, then the next step is to put it in gear and either wedge the flywheel or have someone hold it with a wrench while you try to turn the prop by hand. If you can turn the prop by hand without turning the engine then your prop hub is spun and needs to be replaced.
