Re: Getting at instrument wiring???
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Jim, Have you tried using a mirror to at least see the location of the wires under the dash? Whenever I work on my '47 dash wiring I almost alway disconnect the positive (ground) battery terminal. I am sorry I can't offer much help but I am sure others with 51-54 Packards will.
Posted on: 2008/7/4 15:36
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Re: Getting at instrument wiring???
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Absolutely remove the battery cable. If you're already seeing bare wire, it will only get worse with moving things. The bottom screws are actually nuts that go on threaded studs which is part of cluster. They are on the bottom of cluster and about 2 inches in from either side.
The surprise will be if you can actually get the cluster out after removing them. IIRC the last one I removed had wires which were fairly short & stiff. I believe they passed behind or through the bracket which holds steering column to upper cowl area. Couldn't move cluster much without disconnecting. The clock fuse should be inline type and fairly close to clock.
Posted on: 2008/7/4 15:44
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Re: Getting at instrument wiring???
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Just can't stay away
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HH56: Thank-you for pointing me in the right general direction.
Question: Once the nuts have been successfully found and removed by someone with very dextrous fingers, is it a mortal sin to simply not re-install them so that future access will require removing only the easy TOP screws? Or, will this lead to vibration and movement of the instrument panel? I'm asking because if the nuts are at the bottom of studs that extend DOWN from the panel, then the studs withOUT nuts should still locate the panel's bottom edge, and the TOP screws might be sufficient to prevent vibration? Jim G
Posted on: 2008/7/4 16:14
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Re: Getting at instrument wiring???
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I lied on the 2 inches bit--actually closer to 4". As to leaving off, haven't tried but probably won't hurt if they are actually holes they fit into. If slots, wouldn't suggest it but you can always reinstall the nuts if there is a problem. I would expect a rattle so might suggest putting some kind of thick fabric tape or similar on bottom so cluster wouldn't be quite as loose down there.
Posted on: 2008/7/4 16:34
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Re: Getting at instrument wiring???
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Just can't stay away
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Ah, that helps me to see where to look better. . .
Thanks! Jim G
Posted on: 2008/7/4 21:43
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Re: Getting at instrument wiring???
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Just can't stay away
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Too more quick questions:
1. Can you get a socket in there, or are you best off using an open end or box end wrench? 2. What size of wrench or socket (if you recall - that would make it easier for me)? Jim G
Posted on: 2008/7/4 22:05
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Re: Getting at instrument wiring???
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Its an 8-32 stud and if it's a standard nut, 11/32. However, it could be an automotive with larger hex or a stamped speednut type. I would also have a 3/8 handy. Don't think a straight socket will work because of the stuff around but it's been a while so won't swear to that.
Posted on: 2008/7/4 22:19
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Re: Getting at instrument wiring???
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Just can't stay away
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Thank-you!
Jim G
Posted on: 2008/7/5 8:14
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Re: Getting at instrument wiring???
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There was a logical explanation for why I could not find the lower stud nuts: the prior owner had left them off.
I had a gut feeling that might be the case, so I simply unscrewed the 2 top bolts, and tilted the instrument panel out. I unscrewed the speedometer cable, and voila, the panel easily came forward to the extent that the tight wiring allowed. That allowed me to put electrical tape on that bare spot I mentioned earlier. While in there, I lubricated the speedometer cable and speedo head (not going crazy with the oil). I thought that might settlethe speeometer down a bit - it "swings" about 2 or 3 mph around the indicated speed on the road - but it made no detectable difference. It also allowed me to check the fuse in the clock, and find that it IS good, so the clock itself must be in need of repair or replacement. I'll look around for one that someone has tested and found to be working. It's also pretty obvious to me that the wiring harness is original, and getting close to be a candidate for fossilization, so I figure I'd better ask you guys what approach to take on that (separate posting to keep threads clean). Jim G
Posted on: 2008/7/5 10:43
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