Rare 1971 4001-S ? or what?

craigv · Post by **craigv** » Tue Aug 06, 2002 2:43 am

My '01 4003 is cut to two depths, maybe 3/8" immediately adjacent the neck, for access to the truss rod nuts, and then at least 3/4" below the pickup. Seems much deeper than necessary, and there's no wiring to speak of, as the neck pu leads start right at the routing that leads to the main cavity.

There are two markings in the cavity up by the neck; one, "FG" is obvious (mine's a Fireglo), but there's also an "x" next to the right truss rod hole. My guess is it was an indication of the need to adjust the neck on that side. Anyone know the real reason?

I like that the cavities are all finished. Nothing shouts "cheap" like opening up a bass to find piles of sawdust and chips. But I have to get some shielding in there to cut down on the hum.

gaboik · Post by **gaboik** » Sat Aug 17, 2002 8:49 am

Hello All, Thanks for giving me your input and doing all the research regarding my bass. I feel like I know you guys for years. Anyway, I took the pick guard off the bass, and very faintly I cas see what looks like "4000/s. I have no idea what the "s" stands for. I had the bass put away for 18 years in an anvil road case, and to my surprise, the bass was in perfect tune, and the neck was as straight as could be. I became re-aquainted with an old lost friend. This is one of the skinny neck ricks that is almost flat in the back. I have since removed the Bartolini that I had in the treble position and installed a re-issue Horseshoe in its place. The bass came to life with the horseshoe. I'm amazed at how it looks so much like a V63, but you can tell that it is not a V63. The walnut headwings look authentic, the trussrod cover is true vintage. The sales guy at guitar center lost his mind when he saw it, and quickly compared it with a used V63 that is for sale there. He then offered me the used V63 plus 1 grand for it, of course, I took my bass home with me. Again thanks for all of your hard work and help trying to solve it all out. If any of you want pictures, send me your email address. Thanks, Charlie

doctorwho · Post by **doctorwho** » Tue Aug 20, 2002 1:39 pm

I thought I'd go ahead and try posting a picture of the routed area of my '75 4001S. The routed area measures approximately 61.0 x 99.5 mm (2-19/32 x 3-29/32"). Note that there is a small area closest to the neck that is not routed. One can see four areas of routing, the depths of which are, from top of the picture (closest to the neck) to the bottom: 4.2 mm (11/64"), 7.2 mm (19/64"), 11.0 mm (29/64"), and 7.2 mm (19/64"). If this were done logically, the entire area would have first been routed to the 4.2 mm depth, then a smaller area around the pickup location to the 7.2 mm depth, then the area immediately below the pickup to the 11.0 mm depth.

As far as the neck joint is concerned, there doesn't appear to be any weakness or flaws.

doctorwho · Post by **doctorwho** » Tue Aug 20, 2002 1:53 pm

ARGH - blasted time limits - I can't help it if I have high res pictures!

gaboik · Post by **gaboik** » Tue Aug 20, 2002 6:12 pm

Hello Gary, Thanks for the picture. I now have a good idea on how to add that bass pick up to my 4000. It looks like all that needs to be done is to rout just enough for the magnets, and pick up base to fit. You know what they say, " measure 5 times, cut once"