Intermittent starting problem -- need ideas
Thread Starter
Racer
Joined: Apr 2005
Posts: 276
Likes: 0
From: Conroe TX
Cruise-In IX Veteran
Intermittent starting problem -- need ideas
1969 Coupe. Manual tranny. MSD.
Car was at the shop and wouldn't start. No clicking on the starter but the buzzer and radio would come on as the key was cycled.
Battery was removed and tested. Started was removed and tested. Everything was put back together and it started fine.
Drove it home and started reassembly. Went to start it yesterday and wouldn't work again. This time, I wasn't getting anything (no radio, no buzzer). Traced the problem to a recently installed battery disconnect. Started right up.
Went to start it this morning and it turned over fine the first time but died due to not goosing the gas. After that, it is dead again. Buzzer and radio are still there, but it wont even start to click the starter.
How can I troubleshoot each link in the chain?
I tried putting a jumper over the clutch wires. No difference.
What about the key? I keep hearing about a rod that actuates off the key turning, but cant find that. Is there any way to take this out of the chain and bypass it?
I am guessing it is not the fusible link as this seems to be intermittent.
Beyond that, i am guessing I am down to the wiring on the starter.
Thoughts? Suggestions? Sledgehammer?
Dave
Car was at the shop and wouldn't start. No clicking on the starter but the buzzer and radio would come on as the key was cycled.
Battery was removed and tested. Started was removed and tested. Everything was put back together and it started fine.
Drove it home and started reassembly. Went to start it yesterday and wouldn't work again. This time, I wasn't getting anything (no radio, no buzzer). Traced the problem to a recently installed battery disconnect. Started right up.
Went to start it this morning and it turned over fine the first time but died due to not goosing the gas. After that, it is dead again. Buzzer and radio are still there, but it wont even start to click the starter.
How can I troubleshoot each link in the chain?
I tried putting a jumper over the clutch wires. No difference.
What about the key? I keep hearing about a rod that actuates off the key turning, but cant find that. Is there any way to take this out of the chain and bypass it?
I am guessing it is not the fusible link as this seems to be intermittent.
Beyond that, i am guessing I am down to the wiring on the starter.
Thoughts? Suggestions? Sledgehammer?
Dave
Instructor
Joined: Aug 2009
Posts: 112
Likes: 0
From: Caledon Ont
In a 69 is there a clutch switch, or will it normally start in gear? If so that may be a place to look, also don't disregard grounds or wiring to the starter you may have a break or bad connection under the insulation of the wiring to the starter. One way to check is a wiggle test see if that helps
Thread Starter
Racer
Joined: Apr 2005
Posts: 276
Likes: 0
From: Conroe TX
Cruise-In IX Veteran
There is a clutch switch and I tried by-passing that already.
Just baffled as to why it would start yesterday (after the disconnect fix) and this morning and then just go dead again.
Also, car previously had the alarm option, but it has never been hooked up since I had the car. Did the factory alarm just make a bunch of noise or did it have a connection to the starter as well?
Dave
Just baffled as to why it would start yesterday (after the disconnect fix) and this morning and then just go dead again.
Also, car previously had the alarm option, but it has never been hooked up since I had the car. Did the factory alarm just make a bunch of noise or did it have a connection to the starter as well?
Dave
Thread Starter
Racer
Joined: Apr 2005
Posts: 276
Likes: 0
From: Conroe TX
Cruise-In IX Veteran
Update...
A friend came over and while neither of us is comfortable with starter wiring we are handy with a hammer.
After a couple of taps on the starter we started getting a click at least (more than before). A few minutes later it started up.
Theory is that we have a dead spot in the plunger for the starter.
A friend came over and while neither of us is comfortable with starter wiring we are handy with a hammer.
After a couple of taps on the starter we started getting a click at least (more than before). A few minutes later it started up.
Theory is that we have a dead spot in the plunger for the starter.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
15 years ago, when buying my '72, I noted the electricals, negative bat lead to frame under the box, frame to engine loop under the pass side engine mount, obviously the + wire to the starter, and then the wiring to the main red + feed to the ign switch and the rest of the starter circuit was eliminated....IE, the safety crap removed....straight from switch to starter, no interlocks....works GREAT....
the heavy battery conductors on both + and ground were all cleaned to shiney metal, negatives redone with CLEAN metal and a star washer to ensure conduction, then coated with RTV to preclude rust....
15 years not one failure.....been through ONE starter in that time, went to the smaller one at that time....
the heavy battery conductors on both + and ground were all cleaned to shiney metal, negatives redone with CLEAN metal and a star washer to ensure conduction, then coated with RTV to preclude rust....
15 years not one failure.....been through ONE starter in that time, went to the smaller one at that time....
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Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Starter solenoid is probably worn out. You can rebuild it easily..or you can buy a replacement for about the same money. If you've not done that repair before, check in Archives here on CF or search the web for procedure to change the solenoid. You only have to remove two long bolts from the end of the starter plus the two retaining screws on the solenoid. You can also check the condition/wear of the starter motor brushes while you're in there...and replace them for pocket change while you're at it (if needed).
Starter solenoid, replace or dissassemble,
Racer
Joined: Feb 2005
Posts: 317
Likes: 2
From: coral gables miami
Clean the Short Ground Cable
This will be well along in replys and will maybe go unnoticed but clean the ground connection on the transmission cross-member under the battery....you dont need a starter, however you wont do this either....