When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
As said, make sure your terminals are clean and tight.
^^^THIS^^^
I don't know what did from the factory, but you should burnish all of your ground points and use a star washer between any ground points on the frame or block. If you live up north and are concerned about corrosion you can coat the clean ground points with Fluid Film.
The positive cable was clamped down at the frame and then ran back to the single starter connection. But the negative runs from battery to frame, frame to block. Right below that positive clamp. The positive is only clamped at the frame to keep it off the exhaust, no electrical connection can be made there from the positive side. Be careful as stock color for both was black.
Not on a 300 six motor the negative goes from battery to frame where the positive clamp is to hold that cable frome the exhaust, then the negative goes togoes top starter bolt.
This NOT on any of the v8's just the 300 six.
Dave. ----
Not on a 300 six motor the negative goes from battery to frame where the positive clamp is to hold that cable frome the exhaust, then the negative goes togoes top starter bolt.
This NOT on any of the v8's just the 300 six.
Dave. ----
Sorry Dave, can you clarify ? I read that as, the battery negative goes directly to the frame, "as the ground". That makes sense.
"Where the positive clamp, is to hold the cable away from the exhaust". Sorry I don't understand that.
"Then the negative goes to the top starter bolt". I assume that is the other cable from the "solenoid" which goes to the starter ? Does the 6 cylinder starter have a "mount tab" for the "power cable" from the solenoid, looking on line, but those may be generic photo's
Again, as you know, I don't have that engine. I'm also assuming the 6 cylinder has a solenoid (?). Post 5 pic, shows a solenoid, aka, starter relay.
Thanks,
Do we know what year truck the OP has, Or are all 6 cylinders the same set up for the starter cable ? I see they all seem to have a "tab" on the starter for a cable ?
Hey, you have to give me credit, Karl. I just figured out, after all these years, how to "copy the image" and paste the URL link here, so the picture from Gary's site shows. Not bad for a 70 y/o, sitting on the front porch watching life go by.
Yes all the 300 six trucks are the same.
battery negative to frame the to top starter bolt.
What I meant to say the same bolt that holds the negative tab to ground also holds a insulated clamp that holds the positive cable from the exhaust.
I have pictures on Mt site but I om on my phone and hard to get to site as I am away for a few days.
Dave. ----
Not on a 300 six motor the negative goes from battery to frame where the positive clamp is to hold that cable frome the exhaust, then the negative goes togoes top starter bolt.
This NOT on any of the v8's just the 300 six.
Dave. ----
Hmm, mine did not. But i am not the original owner so i yield to your vast experience
.
From the OP's sketch, I'll venture he moved the ground wire from some other less bonded spot to the bolt on the starter. The diagram that Max posted for the 1980 300 doesn't show it laid down on the starter bolt. I think that any good clean ground on the engine would be good. And the starter bolt sounds handy.
I think that any good clean ground on the engine would be good...
Agreed. That’s why I had asked what changed and the starter is now behaving properly.
Let’s say the existing ground cable was attached to a clean spot near the front of the engine block. Even though others have noted that was not the factory connection point for the straight 6, it should have worked just fine. For comparison, that’s how V8 models came from the factory.
If all he did was relocate that same cable to the starter case, I’d suspect something else was intermittent and actually the root cause. For example, one of the battery terminal crimps could be marginal. The disconnect and reconnect may have jostled the bad spot just enough to temporarily re-establish an adequate connection. If that was the case, expect it to fall again at an inconvenient time, such as immediately after knocking over a liquor store.
Reading between the lines, even though the original query was about the cable connection points, the only reason he was asking was because the starter was dead. The latter was the true problem, not whether the cables followed the specific factory routing for that engine model.
did from the factory, but you should burnish all of your ground points and use a star washer between any ground points on the frame or block. If you live up north and are concerned about corrosion you can coat the clean ground points with Fluid Film.
