speedo cable engagement

maylar

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I've been told that if the speedo cable sticks too far into the instrument you can destroy it. I just had the speedo repaired and don't want to risk that. Does anybody know how far the cable should go into the gage?
 
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maylar said:
I've been told that if the speedo cable sticks too far into the instrument you can destroy it. I just had the speedo repaired and don't want to risk that. Does anybody know how far the cable should go into the gage?

Flush with the top of the threaded housing with the cable pushed all the way down into the speed drive. There should be about 7/16" of cable beyond the stop at the instument end. You may need to trim a bit from both ends depending upon the cable you have. The Barnett cables I have bought recently are too long at both ends. And having the cable too long will ruin the instrument!!
 

L.A.B.

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If the cable inner projection is long enough to push the speedo drive spindle upwards into the speedo housing, as the spindle rotates the speedo spindle and housing will wear rapidly.

I think as tpeever said that 7/16" is correct, but you can check this by measuring both parts, how much the inner cable projects from the end of the outer ferrule (not the threaded sleeve) and the depth of the speedo spindle drive recess that it fits into, provided the inner cable length is less than the depth of the recess by at least 1/16" then it should be OK.
 
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L.A.B. said:
If the cable inner projection is long enough to push the speedo drive spindle upwards into the speedo housing, as the spindle rotates the speedo spindle and housing will wear rapidly.

I think as tpeever said that 7/16" is correct, but you can check this by measuring both parts, how much the inner cable projects from the end of the outer ferrule (not the threaded sleeve) and the depth of the speedo spindle drive recess that it fits into, provided the inner cable length is less than the depth of the recess by at least 1/16" then it should be OK.

It is tricky to get the length of the cable just right so take your time!!
 
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