#21  
Old 07-11-2018, 02:21 PM
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Its about a 16ga wire, I'll post a pict when I get home today.

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68 GTO 4-spd Convertible
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  #22  
Old 07-11-2018, 05:47 PM
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Quote:
Originally Posted by kk68 View Post
Here’s a photo of my routing, which looks like neg cable is right length. However, I don’t have the clip at the bottom of fender well, nor is there a hole for a clip.

kk68, do you know the fan mounting height on your clutch? It looks a lot longer than the one I have & I can't seem to find one that gives a little more clearance between the power steering pump shaft & the fan blades



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  #23  
Old 07-11-2018, 05:57 PM
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Quote:
Originally Posted by Greg Reid View Post
Anyone have a photo of that rag joint ground? I don't recall ever noticing that on any car and I'm pretty sure I don't have one.
Here's the pict.

.
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  #24  
Old 07-12-2018, 08:19 AM
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Thanks for the pic. I have no idea whether my car has that. As far as I know, it's never been apart.
My horns don't work but the relay clicks so I'm pretty sure it's the horns.

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  #25  
Old 07-12-2018, 02:45 PM
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Quote:
Originally Posted by Greg Reid View Post
Thanks for the pic. I have no idea whether my car has that. As far as I know, it's never been apart.
My horns don't work but the relay clicks so I'm pretty sure it's the horns.
You can rebuild them, Not sure if you recall my thread from last year. No parts involved, I just had to make gaskets to seal them up after freshening them up.

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  #26  
Old 07-13-2018, 07:37 AM
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They're not worth the effort. Plastic repops. I did pull a set of originals for like 5 bucks from the junkyard from a '68 LeMans. Took a chance that they would work...they didn't.
I tossed them but of course, now I wish I had kept them.

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Old 07-13-2018, 07:36 PM
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Quote:
Originally Posted by 68ragtop View Post
kk68, do you know the fan mounting height on your clutch? It looks a lot longer than the one I have & I can't seem to find one that gives a little more clearance between the power steering pump shaft & the fan blades


Distance from front of pulley to back face of fan is about 1 5/8 inches. The shaft you see is about 1.5”

Hope that’s the “fan mounting height you were referencing.
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  #28  
Old 03-23-2019, 11:30 AM
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So did anyone ever come up with a total length of the battery cables? Mine are too long I believe & I need to shorten them. maybe a measurement from the metal tube (non HO) to the battery connector? Mine are both long enough to fit into the wire loom loops on the wheel well.
That seems excessive, doesn't it?

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  #29  
Old 03-23-2019, 06:44 PM
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My positive cable is 35-1/2" long from where it comes out of the heat shield to the end of the battery clamp. Too long? I bought these cables from Ames about 16 years ago. could have been a change at some point?

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  #30  
Old 03-23-2019, 11:55 PM
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Quote:
Originally Posted by 68ragtop View Post
So did anyone ever come up with a total length of the battery cables? Mine are too long I believe & I need to shorten them. maybe a measurement from the metal tube (non HO) to the battery connector? Mine are both long enough to fit into the wire loom loops on the wheel well.
That seems excessive, doesn't it?
it should be in the first loop closest to the battery and almost touch the second loop according to the assembly manual. From that pic it would make sense to me if they'd just added an inch and gotten it into the second loop. I've seen/had some of these repop loops that are too small compared to the originals that easily fit both the harness and the cable in there.
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  #31  
Old 03-24-2019, 07:47 AM
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Thanks! One thing I didn't consider is I have a temporary battery installed that might be a lot longer that the stock battery. Not sure why I didn't think of that. I have a deep cycle marine battery sitting in there right now. Fits the try fine, But I have feeling it might be a bit longer. My negative cable is for sure a but long, but thats an easy change later if its incorrect.

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  #32  
Old 09-09-2019, 11:18 AM
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Just wanted to check in again on this thread. Did you guys ever measure your battery cable lengths? Both of mine seem too long, but the positive isn't bad as long as its routed up near the headlight harness on the wheel well.

The negative however just seems too long. The ones I have I bought from Ames about 16 years ago, so that might have something to do with it?

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  #33  
Old 09-12-2019, 04:30 PM
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I went out and measured the negative cable on my 68 LeMans with 350. It looks to be an original cable except someone before me put on a newer style post clamp. I doubt they cut any length off of the cable while doing so. Anyway, it measures 27 1/4" from center of stud to center of battery post. Here's a picture of the part #. I was able to find that Lectric Limited sells the repop negative cable for the 68's and their's has the exact same part # stenciled on it like mine has, so mine has to be original. Hope that helps, Jeff
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  #34  
Old 09-12-2019, 04:41 PM
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Here's the repop
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  #35  
Old 09-12-2019, 04:52 PM
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I picked this ugly rust bucket 69 up for parts 2 weeks ago ...

Its fairly original under the hood ,,, except the belts .. master cyl ..
hot battery cable end and plug wires ....
and the thermostat housing on backwards

I can measure the ground if you still have a need ...

Scott
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  #36  
Old 09-12-2019, 05:20 PM
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Quote:
Originally Posted by Verdoro 68 View Post
Been doing some cleanup of my engine compartment and got some replacement spring ring battery cables. I didn't take a pic before I took it apart, but the negative cable seems a couple inches short from what I remember.

From the September 69 MPC: Cable, Battery to Ground, 1968 T/8, 36”, p/n 2978483. As usual with GM, the p/n could have been superseded in later years. Not sure how the length is measured, center of terminal to terminal? This should give a reference as to the repop cable.

  #37  
Old 09-12-2019, 08:00 PM
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Thanks a Bunch Guys!! I did get a measurement from KK68 a few days ago & my negative cable is 10" longer!!

I contacted the cable mfg & gave them the only info I had, they told me I have a discontinued "universal" set of cables. I ordered these from Ames at least 15 years ago. I suppose it's likely they didn't have the correct lengths back then. Not sure if anyones memory is better than mine on that detail.....

So, I ordered the correct Negative cable specified at 27" from center of battery lug, to center of the ground eye.
For the record, they said the positive non R/A cable is 38" center to center.

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Last edited by 68ragtop; 09-12-2019 at 08:08 PM.
  #38  
Old 09-12-2019, 08:23 PM
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Quote:
Originally Posted by Scott Thelander View Post
I picked this ugly rust bucket 69 up for parts 2 weeks ago ...

Its fairly original under the hood ,,, except the belts .. master cyl ..
hot battery cable end and plug wires ....
and the thermostat housing on backwards

I can measure the ground if you still have a need ...

Scott
Love looking at pictures like those. Amazing it still has a spring ring complete cable! Also the positive tube insulation. I could look at pictures like that all day. Must be a fairly low mile car? Sooo very Cool!

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  #39  
Old 09-12-2019, 11:01 PM
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27" looks pretty darn close.......for the ground length

mileage on the pile/car ...

good call .... I pulled the floor shift column and dash pad today and didnt even look,,,??!! duh ..

the car has over 80 for sure... I think ...
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  #40  
Old 09-13-2019, 07:03 AM
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I wonder if I could find a 4ga ring like those somewhere. I already ordered another correct length Negative, but just learned that my positive cable is abut 3" too long. Now thats bugging me. In the assembly manual it shows the positive cable looping though the front plastic headlight wiring retainer & then laying in the wheel well & down to the tube. Mine is long enough to loop through both wheel well wire retainers & down to the metal tube.

Looks like Scotts parts car had that cable the same as the book seeing the rear loop is intact & the front is broken.

I looked on M&H's website & is says they will not sell the crimp on ends. They must get asked that question a lot.

Also one Scotts picts, I am surprised the 12v starter to alternator/body wire isn't in the protective wrap. Scott you'll have to let us know when you take that apart if that was just bare & down the outer edge of the tube, or if it has some sort of separate protection on it we can't see.

EDIT: also looks like it has a complete intact top engine wiring tube/sleeve.
You should sell that to somebody so they can re-pop them similar, but incorrectly

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Last edited by 68ragtop; 09-13-2019 at 07:09 AM.
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