64 vert shutdown issues

[Ed P.]

Hi all, 64 vert when I shut off the engine the starter momentarily engages. This does not happen all the time. I replaced the ignition switch and things were good for a couple months before problem returned. Ed

[Bruce B.]

Re: 64 vert shutdown issues

Sounds like you have a wiring problem that needs to be corrected.
Almost sounds like it is in the switch.

[Ed P.]

Re: 64 vert shutdown issues

Well my plan is to try another switch if there is a better brand please let me know. I am also going to add a diode in the brown wire for trouble shooting purpose which will stop feedback for assy wiring. .. Thanks Ed

[Bob H.]

Re: 64 vert shutdown issues

Hi Ed:

Are you sure it is not a mechanical issue like a problem with the spring in the bendix?.

Otherwise, wouldn't you need 12v on the purple wire to the solenoid for it to happen? If it does it all the time, maybe you could start it and then pull that lead to the solenoid before shutting it off. At least you would know if it was the ign switch.

[Timothy B.]

Re: 64 vert shutdown issues

Ed,

Double check the wiring on the solenoid to make sure it's correct and no wires are close to touching.

I would attach a test light to the S wire on the solenoid and have someone jiggle the ignition switch while it's in the off position and also turning from run to off. Power to the S terminal from the ignition switch is the only way the solenoid will engage and run the starter. The wires in the switch plug may be loose and touching.

If the test does not show power and the solenoid is the original, you may want to take it apart to inspect the contact plate and other parts inside.

[Ed P.]

Re: 64 vert shutdown issues

Ok I hooked up a meter to the s wire today and had help to giggle switch, wires on to off ect. No change in meter readings. I had meter set to 10 volts to help see any small voltage change. I will pull starter tommorrow and see what it looks like. It is the original starter. Ed

[Timothy B.]

Re: 64 vert shutdown issues

Ed,

If there is no power at the S terminal on the solenoid when the ignition switch is in run or off I think the ignition switch is OK. The only time this terminal is powered is when the ignition switch is in the start position.

I would try Bob's idea and run the car and pull the S terminal wire and after shut down see if the starter runs. If that's the case the problem is inside the solenoid. These can be repaired so keep your original..

[Ed P.]

Re: 64 vert shutdown issues

OK removed starter today and I believe it is the first time any one has remove this starter. Some wear inside solenoid and the spring was looped over it self. The plan right now is to install a rebuilt starter while the original is stored for a later rebuild. Will try the idea of running car with s wire off and connected to a meter but the problem is so intermintent it would be pure luck to catch it. Thanks Ed

[Timothy B.]

Re: 64 vert shutdown issues

ED,

Just out of curiosity what is the part # of the solenoid? It should be stamped into the top if you can make it out.

[Ed P.]

Re: 64 vert shutdown issues

Starter is 1107320 4 G 3 and solenoid is 1114344

[Timothy B.]

Re: 64 vert shutdown issues

Thanks for that info Ed, I think you can mine usable parts from other solenoids to make the original work very well.

[Ed P.]

Re: 64 vert shutdown issues

I am reviving this post. Still having problems with starter engauging when key is turned off. I have replaced starter and tried two ignition switches with the same results. I removed the brown acc. feed wire at the ingition switch to see if there is voltage feeding back to ignition switch. There was none. With this removed the alternator has no output (checked with multimeter) . Now if I hook up the acc. wire start the engine the alternator works fine. I then remove acc. brown wire while car is running and ther is 14.7 v on this wire. If I am correct there should be zero volts with this wire removed. If this is correct whats wrong with the alternator. Getting feed back into feild circuit? Any help please. Thanks Ed

[Ed P.]

Re: 64 vert shutdown issues

Any ideas about possibly alternator feeding back to ignition switch. Ed

[Timothy B.]

Re: 64 vert shutdown issues

Ed,

I will look at my 63 wiring diagram today and see if I can offer any suggestions.

Could the plug at the ignition switch be broken or loose? Are you sure the starter and solenoid are wired correctly, there is a ground wire that goes to the starter mounting bolt with the negitive battery terminal.

[Ed P.]

Re: 64 vert shutdown issues

I checked the starter wiring and all looks correct. I also installed another alternator to see if I have the same readings as above and they are the same. Ed